#include "common.h"
#include "dequantize.h"
// dequantize a quantized KV cache tensor to contiguous F16 before running the F16 flash attention kernels
// - one thread per block; dispatched separately for K and V
// - ref: https://github.com/ggml-org/llama.cpp/pull/27390
template <
typename block_t,
short QK,
void (*deq_t4x4)(device const block_t *, short, thread float4x4 &)>
kernel void kernel_flash_attn_ext_kv_f16(
constant ggml_metal_kargs_flash_attn_ext_kv_f16 & args,
device const char * x,
device half * x_dst,
uint gid [[thread_position_in_grid]]) {
if (gid >= (uint) args.nblocks) {
return;
}
const uint nb = args.ne0/QK;
const uint i0 = gid%nb;
uint ib = gid/nb;
const uint i1 = ib%args.ne1;
ib /= args.ne1;
const uint i2 = ib%args.ne2;
const uint i3 = ib/args.ne2;
const uint64_t offs = i0*args.nb0 + i1*args.nb1 + i2*args.nb2 + i3*args.nb3;
device const block_t * src = (device const block_t *) (x + offs);
device half4 * dst = (device half4 *) x_dst + (QK/4)*gid;
for (short i = 0; i < QK/16; ++i) {
float4x4 reg;
deq_t4x4(src, i, reg);
dst[4*i + 0] = (half4) reg[0];
dst[4*i + 1] = (half4) reg[1];
dst[4*i + 2] = (half4) reg[2];
dst[4*i + 3] = (half4) reg[3];
}
}
typedef decltype(kernel_flash_attn_ext_kv_f16<block_q8_0, 32, dequantize_q8_0>) kernel_flash_attn_ext_kv_f16_t;
template [[host_name("kernel_flash_attn_ext_kv_q4_0_f16")]] kernel kernel_flash_attn_ext_kv_f16_t kernel_flash_attn_ext_kv_f16<block_q4_0, 32, dequantize_q4_0>;
template [[host_name("kernel_flash_attn_ext_kv_q4_1_f16")]] kernel kernel_flash_attn_ext_kv_f16_t kernel_flash_attn_ext_kv_f16<block_q4_1, 32, dequantize_q4_1>;
template [[host_name("kernel_flash_attn_ext_kv_q5_0_f16")]] kernel kernel_flash_attn_ext_kv_f16_t kernel_flash_attn_ext_kv_f16<block_q5_0, 32, dequantize_q5_0>;
template [[host_name("kernel_flash_attn_ext_kv_q5_1_f16")]] kernel kernel_flash_attn_ext_kv_f16_t kernel_flash_attn_ext_kv_f16<block_q5_1, 32, dequantize_q5_1>;
template [[host_name("kernel_flash_attn_ext_kv_q8_0_f16")]] kernel kernel_flash_attn_ext_kv_f16_t kernel_flash_attn_ext_kv_f16<block_q8_0, 32, dequantize_q8_0>;
constant bool FC_flash_attn_ext_pad_has_mask [[function_constant(FC_FLASH_ATTN_EXT_PAD + 0)]];
constant int32_t FC_flash_attn_ext_pad_ncpsg [[function_constant(FC_FLASH_ATTN_EXT_PAD + 25)]];
// pad the last chunk of C elements of k and v into a an extra pad buffer
kernel void kernel_flash_attn_ext_pad(
constant ggml_metal_kargs_flash_attn_ext_pad & args,
device const char * k,
device const char * v,
device const char * mask,
device char * dst,
uint3 tgpig[[threadgroup_position_in_grid]],
ushort tiitg[[thread_index_in_threadgroup]],
ushort3 ntg[[threads_per_threadgroup]]) {
const int32_t C = FC_flash_attn_ext_pad_ncpsg;
device char * k_pad = dst;
device char * v_pad = k_pad + args.nb11*C*args.ne_12_2*args.ne_12_3;
device char * mask_pad = v_pad + args.nb21*C*args.ne_12_2*args.ne_12_3;
const int32_t icp = args.ne11 % C;
const int32_t ic0 = args.ne11 - icp;
const int32_t i1 = tgpig[0];
const int32_t i2 = tgpig[1];
const int32_t i3 = tgpig[2];
if (i2 < args.ne_12_2 && i3 < args.ne_12_3) {
device const char * k_src = k + args.nb11*(ic0 + i1) + args.nb12*i2 + args.nb13*i3;
device const char * v_src = v + args.nb21*(ic0 + i1) + args.nb22*i2 + args.nb23*i3;
device char * k_dst = k_pad + args.nb11*i1 + args.nb11*C*i2 + args.nb11*C*args.ne_12_2*i3;
device char * v_dst = v_pad + args.nb21*i1 + args.nb21*C*i2 + args.nb21*C*args.ne_12_2*i3;
if (i1 >= icp) {
// here it is not important the exact value that will be used as we rely on masking out the scores in the attention
for (uint64_t i = tiitg; i < args.nb11; i += ntg.x) {
k_dst[i] = 0;
}
for (uint64_t i = tiitg; i < args.nb21; i += ntg.x) {
v_dst[i] = 0;
}
} else {
for (uint64_t i = tiitg; i < args.nb11; i += ntg.x) {
k_dst[i] = k_src[i];
}
for (uint64_t i = tiitg; i < args.nb21; i += ntg.x) {
v_dst[i] = v_src[i];
}
}
}
if (FC_flash_attn_ext_pad_has_mask) {
if (i2 < args.ne32 && i3 < args.ne33) {
for (int ib = i1; ib < args.ne31; ib += C) {
device const half * mask_src = (device const half *)(mask + args.nb31*ib + args.nb32*i2 + args.nb33*i3) + ic0;
device half * mask_dst = (device half *)(mask_pad) + C*ib + C*args.ne31*i2 + C*args.ne31*args.ne32*i3;
for (int i = tiitg; i < C; i += ntg.x) {
if (i >= icp) {
mask_dst[i] = -MAXHALF;
} else {
mask_dst[i] = mask_src[i];
}
}
}
}
}
}
constant int32_t FC_flash_attn_ext_blk_nqptg [[function_constant(FC_FLASH_ATTN_EXT_BLK + 24)]];
constant int32_t FC_flash_attn_ext_blk_ncpsg [[function_constant(FC_FLASH_ATTN_EXT_BLK + 25)]];
// scan the blocks of the mask that are not masked
// 0 - masked (i.e. full of -INF, skip)
// 1 - not masked (i.e. at least one element of the mask is not -INF)
// 2 - all zero
kernel void kernel_flash_attn_ext_blk(
constant ggml_metal_kargs_flash_attn_ext_blk & args,
device const char * mask,
device char * dst,
uint3 tgpig[[threadgroup_position_in_grid]],
ushort tiisg[[thread_index_in_simdgroup]]) {
// block size C x Q
const int32_t Q = FC_flash_attn_ext_blk_nqptg;
const int32_t C = FC_flash_attn_ext_blk_ncpsg;
constexpr short NW = N_SIMDWIDTH;
const int32_t i3 = tgpig[2]/args.ne32;
const int32_t i2 = tgpig[2]%args.ne32;
const int32_t i1 = tgpig[1];
const int32_t i0 = tgpig[0];
char res = i0*C + C > args.ne30 ? 1 : 0;
device const half * mask_src = (device const half *) (mask + (i1*Q)*args.nb31 + i2*args.nb32 + i3*args.nb33) + i0*C + tiisg;
// detailed check of the elements of the block
if ((C > NW || Q > 1) && res == 0) {
half mmin = MAXHALF;
half mmax = -MAXHALF;
FOR_UNROLL (short j = 0; j < Q; ++j) {
FOR_UNROLL (short ii = 0; ii < C/NW; ++ii) {
mmin = min(mmin, mask_src[ii*NW]);
mmax = max(mmax, mask_src[ii*NW]);
}
mask_src += args.nb31/2;
}
mmin = simd_min(mmin);
mmax = simd_max(mmax);
if (mmax > -MAXHALF) {
if (mmin == 0.0 && mmax == 0.0) {
res = 2;
} else {
res = 1;
}
}
}
const int32_t nblk1 = ((args.ne01 + Q - 1)/Q);
const int32_t nblk0 = ((args.ne30 + C - 1)/C);
if (tiisg == 0) {
dst[((i3*args.ne32 + i2)*nblk1 + i1)*nblk0 + i0] = res;
}
}
constant bool FC_flash_attn_ext_has_mask [[function_constant(FC_FLASH_ATTN_EXT + 0)]];
constant bool FC_flash_attn_ext_has_sinks [[function_constant(FC_FLASH_ATTN_EXT + 1)]];
constant bool FC_flash_attn_ext_has_bias [[function_constant(FC_FLASH_ATTN_EXT + 2)]];
constant bool FC_flash_attn_ext_has_scap [[function_constant(FC_FLASH_ATTN_EXT + 3)]];
constant bool FC_flash_attn_ext_has_kvpad [[function_constant(FC_FLASH_ATTN_EXT + 4)]];
constant bool FC_flash_attn_ext_bc_mask [[function_constant(FC_FLASH_ATTN_EXT + 10)]];
//constant float FC_flash_attn_ext_scale [[function_constant(FC_FLASH_ATTN_EXT + 10)]];
//constant float FC_flash_attn_ext_max_bias [[function_constant(FC_FLASH_ATTN_EXT + 11)]];
//constant float FC_flash_attn_ext_logit_softcap [[function_constant(FC_FLASH_ATTN_EXT + 12)]];
constant int32_t FC_flash_attn_ext_ns10 [[function_constant(FC_FLASH_ATTN_EXT + 20)]];
constant int32_t FC_flash_attn_ext_ns20 [[function_constant(FC_FLASH_ATTN_EXT + 21)]];
constant int32_t FC_flash_attn_ext_nsg [[function_constant(FC_FLASH_ATTN_EXT + 22)]];
// ref: https://arxiv.org/pdf/2307.08691.pdf
template<
typename q_t, // query types in shared memory
typename q4_t,
typename q8x8_t,
typename k_t, // key types in shared memory
typename k4x4_t,
typename k8x8_t,
typename v_t, // value types in shared memory
typename v4x4_t,
typename v8x8_t,
typename qk_t, // Q*K types
typename qk8x8_t,
typename s_t, // soft-max types
typename s2_t,
typename s8x8_t,
typename o_t, // attention accumulation types
typename o4_t,
typename o8x8_t,
typename kd4x4_t, // key type in device memory
short nl_k,
void (*deq_k)(device const kd4x4_t *, short, thread k4x4_t &),
typename vd4x4_t, // value type in device memory
short nl_v,
void (*deq_v)(device const vd4x4_t *, short, thread v4x4_t &),
short DK, // K head size
short DV, // V head size
short Q, // queries per threadgroup
short C, // cache items per threadgroup
short NSG> // number of simd groups
void kernel_flash_attn_ext_impl(
constant ggml_metal_kargs_flash_attn_ext & args,
device const char * q,
device const char * k,
device const char * v,
device const char * mask,
device const char * sinks,
device const char * pad,
device const char * blk,
device char * dst,
threadgroup half * shmem_f16,
uint3 tgpig,
ushort tiisg,
ushort sgitg) {
const ushort iq3 = tgpig[2];
const ushort iq2 = tgpig[1];
const ushort iq1 = tgpig[0]*Q;
#define NS10 (FC_flash_attn_ext_ns10)
#define NS20 (FC_flash_attn_ext_ns20)
// note: I had some concerns that using this instead of the ugly macros above was affecting performance
// need to re-check carefully and if no regressions are observerd - remove the macros
// the concerns is that maybe using const variables requires extra registers? but not sure if the compiler
// is clever enough to avoid this. unfortunately, using constexpr is not possible with FC
//const short NS10 = FC_flash_attn_ext_ns10;
//const short NS20 = FC_flash_attn_ext_ns20;
constexpr short KV = 8;
constexpr short DK4 = DK/4;
constexpr short DK8 = DK/8;
constexpr short DK16 = DK/16;
constexpr short DV4 = DV/4;
//constexpr short DV8 = DV/8;
constexpr short DV16 = DV/16;
constexpr short PV = PAD2(DV, 64);
constexpr short PV4 = PV/4;
constexpr short PV8 = PV/8;
//constexpr short PV16 = PV/16;
constexpr short NW = N_SIMDWIDTH;
constexpr short NQ = Q/NSG;
constexpr short SH = 2*C; // shared memory per simdgroup (s_t == float)
constexpr short TS = 2*SH;
constexpr short T = DK + 2*PV; // shared memory size per query in (half)
threadgroup q_t * sq = (threadgroup q_t *) (shmem_f16 + 0*T); // holds the query data
threadgroup q4_t * sq4 = (threadgroup q4_t *) (shmem_f16 + 0*T); // same as above but in q4_t
threadgroup o_t * so = (threadgroup o_t *) (shmem_f16 + 0*T + Q*DK); // the result for all queries in 8x8 matrices (the O matrix from the paper)
threadgroup o4_t * so4 = (threadgroup o4_t *) (shmem_f16 + 0*T + Q*DK);
threadgroup s_t * ss = (threadgroup s_t *) (shmem_f16 + Q*T); // scratch buffer for attention, mask and diagonal matrix
threadgroup s2_t * ss2 = (threadgroup s2_t *) (shmem_f16 + Q*T); // same as above but in s2_t
threadgroup k_t * sk = (threadgroup k_t *) (shmem_f16 + sgitg*(4*16*KV) + Q*T + Q*TS); // scratch buffer to load K in shared memory
threadgroup k4x4_t * sk4x4 = (threadgroup k4x4_t *) (shmem_f16 + sgitg*(4*16*KV) + Q*T + Q*TS); // same as above but in k4x4_t
threadgroup v_t * sv = (threadgroup v_t *) (shmem_f16 + sgitg*(4*16*KV) + Q*T + Q*TS); // scratch buffer to load V in shared memory
threadgroup v4x4_t * sv4x4 = (threadgroup v4x4_t *) (shmem_f16 + sgitg*(4*16*KV) + Q*T + Q*TS); // same as above but in v4x4_t
// mask storage in shared mem
threadgroup half2 * sm2 = (threadgroup half2 *) (shmem_f16 + Q*T + 2*C);
// per-query mask pointers
device const half2 * pm2[NQ];
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
pm2[jj] = (device const half2 *) ((device const char *) mask + (iq1 + j)*args.nb31 + (iq2%args.ne32)*args.nb32 + (iq3%args.ne33)*args.nb33);
}
{
const int32_t nblk1 = ((args.ne01 + Q - 1)/Q);
const int32_t nblk0 = ((args.ne11 + C - 1)/C);
blk += (((iq3%args.ne33)*args.ne32 + (iq2%args.ne32))*nblk1 + iq1/Q)*nblk0;
}
{
q += iq1*args.nb01 + iq2*args.nb02 + iq3*args.nb03;
const short ikv2 = iq2/(args.ne02/args.ne_12_2);
const short ikv3 = iq3/(args.ne03/args.ne_12_3);
k += ikv2*args.nb12 + ikv3*args.nb13;
v += ikv2*args.nb22 + ikv3*args.nb23;
}
// load heads from Q to shared memory
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
device const float4 * q4 = (device const float4 *) ((device const char *) q + j*args.nb01);
for (short i = tiisg; i < DK4; i += NW) {
if (iq1 + j < args.ne01) {
sq4[j*DK4 + i] = (q4_t) q4[i];
} else {
sq4[j*DK4 + i] = 0;
}
}
}
// zero out
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
for (short i = tiisg; i < DV4; i += NW) {
so4[j*PV4 + i] = 0;
}
for (short i = tiisg; i < SH; i += NW) {
ss[j*SH + i] = 0.0f;
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
float S[NQ] = { [0 ... NQ-1] = 0.0f };
{
float M[NQ] = { [0 ... NQ-1] = -FLT_MAX/2 };
float slope = 1.0f;
// ALiBi
if (FC_flash_attn_ext_has_bias) {
const short h = iq2;
const float base = h < args.n_head_log2 ? args.m0 : args.m1;
const short exph = h < args.n_head_log2 ? h + 1 : 2*(h - args.n_head_log2) + 1;
slope = pow(base, exph);
}
// loop over the KV cache
// each simdgroup handles blocks of Q rows and C columns
for (int ic0 = 0; ; ++ic0) {
int ic = ic0*C;
if (ic >= args.ne11) {
break;
}
// the last partial chunk uses the pad buffer as source
if (FC_flash_attn_ext_has_kvpad && ic + C > args.ne11) {
k = pad;
v = k + args.nb11*C*args.ne_12_2*args.ne_12_3;
mask = v + args.nb21*C*args.ne_12_2*args.ne_12_3;
const short ikv2 = iq2/(args.ne02/args.ne_12_2);
const short ikv3 = iq3/(args.ne03/args.ne_12_3);
k += (ikv2 + ikv3*args.ne_12_2)*args.nb11*C;
v += (ikv2 + ikv3*args.ne_12_2)*args.nb21*C;
if (!FC_flash_attn_ext_has_mask) {
threadgroup half * sm = (threadgroup half *) (sm2);
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
for (short i = tiisg; i < C; i += NW) {
if (ic + i >= args.ne11) {
sm[2*j*SH + i] = -MAXHALF;
}
}
}
} else {
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
pm2[jj] = (device const half2 *) ((device const half *) mask +
(iq1 + j)*C +
(iq2%args.ne32)*(C*args.ne31) +
(iq3%args.ne33)*(C*args.ne31*args.ne32));
}
}
ic = 0;
}
char blk_cur = 1;
// read the mask into shared mem
if (FC_flash_attn_ext_has_mask) {
blk_cur = blk[ic0];
if (blk_cur == 0) {
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
pm2[jj] += NW;
}
continue;
}
if (blk_cur == 1) {
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
if (FC_flash_attn_ext_bc_mask) {
sm2[j*SH + tiisg] = (iq1 + j) < args.ne31 ? pm2[jj][tiisg] : half2(-MAXHALF, -MAXHALF);
} else {
sm2[j*SH + tiisg] = pm2[jj][tiisg];
}
pm2[jj] += NW;
}
} else if (blk_cur == 2) {
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
pm2[jj] += NW;
}
}
#if 0
// note: old -INF block optimization - obsoleted by pre-computing non-masked blocks
threadgroup_barrier(mem_flags::mem_threadgroup);
// used to detect blocks full of -INF
// skip only when the entire threadgroup is masked
half2 smax2(-MAXHALF/2, -MAXHALF/2);
FOR_UNROLL (short j = 0; j < Q; ++j) {
smax2 = max(smax2, sm2[j*SH + tiisg]);
}
smax2 = simd_max(smax2);
if (max(smax2[0], smax2[1]) <= -MAXHALF/2) {
// this barrier is important
threadgroup_barrier(mem_flags::mem_threadgroup);
continue;
}
#endif
}
// Q*K^T
// this is compile-time check, so it does not have runtime overhead
if (is_same<kd4x4_t, k4x4_t>::value) {
// we can read directly from global memory
device const k_t * pk = (device const k_t *) (k + ic*args.nb11);
threadgroup const q_t * pq = sq;
threadgroup s_t * ps = ss;
pk += sgitg*(8*NS10);
ps += sgitg*(8*1);
static_assert((C/8) % NSG == 0, "");
constexpr short NC = (C/8)/NSG;
FOR_UNROLL (short cc = 0; cc < NC; ++cc) {
qk8x8_t mqk = make_filled_simdgroup_matrix<qk_t, 8>((qk_t) 0.0f);
if (DK % 16 != 0) {
k8x8_t mk;
q8x8_t mq;
FOR_UNROLL (short i = 0; i < DK8; ++i) {
simdgroup_barrier(mem_flags::mem_none);
simdgroup_load(mk, pk + 8*i, NS10, 0, true);
simdgroup_load(mq, pq + 8*i, DK);
simdgroup_barrier(mem_flags::mem_none);
simdgroup_multiply_accumulate(mqk, mq, mk, mqk);
}
} else {
k8x8_t mk[2];
q8x8_t mq[2];
// note: too much unroll can tank the performance for large heads
#pragma unroll (MIN(DK8/2, 4*NSG))
for (short i = 0; i < DK8/2; ++i) {
simdgroup_barrier(mem_flags::mem_none);
simdgroup_load(mq[0], pq + 0*8 + 16*i, DK);
simdgroup_load(mq[1], pq + 1*8 + 16*i, DK);
simdgroup_load(mk[0], pk + 0*8 + 16*i, NS10, 0, true);
simdgroup_load(mk[1], pk + 1*8 + 16*i, NS10, 0, true);
simdgroup_barrier(mem_flags::mem_none);
simdgroup_multiply_accumulate(mqk, mq[0], mk[0], mqk);
simdgroup_multiply_accumulate(mqk, mq[1], mk[1], mqk);
}
}
simdgroup_store(mqk, ps, SH, 0, false);
pk += 8*(NSG*NS10);
ps += 8*(NSG);
}
} else {
// TODO: this is the quantized K cache branch - not optimized yet
for (short ccc = 0; ccc < (C/8)/NSG; ++ccc) {
const short cc = ccc*NSG + sgitg;
const short tx = tiisg%4;
const short ty = tiisg/4;
qk8x8_t mqk = make_filled_simdgroup_matrix<qk_t, 8>((qk_t) 0.0f);
for (short ii = 0; ii < DK16; ii += 4) {
device const kd4x4_t * pk4x4 = (device const kd4x4_t *) (k + ((ic + 8*cc + ty)*args.nb11));
if (DK16%4 == 0) {
// the head is evenly divisible by 4*16 = 64, so no need for bound checks
{
k4x4_t tmp;
deq_k(pk4x4 + (ii + tx)/nl_k, (ii + tx)%nl_k, tmp);
sk4x4[4*ty + tx] = tmp;
}
simdgroup_barrier(mem_flags::mem_threadgroup);
FOR_UNROLL (short k = 0; k < 4; ++k) {
k8x8_t mk;
q8x8_t mq;
simdgroup_load(mk, sk + 16*k + 0*8, 4*16, 0, true); // transpose
simdgroup_load(mq, sq + (2*(ii + k) + 0)*8, DK);
simdgroup_multiply_accumulate(mqk, mq, mk, mqk);
simdgroup_load(mk, sk + 16*k + 1*8, 4*16, 0, true); // transpose
simdgroup_load(mq, sq + (2*(ii + k) + 1)*8, DK);
simdgroup_multiply_accumulate(mqk, mq, mk, mqk);
}
} else {
if (ii + tx < DK16) {
k4x4_t tmp;
deq_k(pk4x4 + (ii + tx)/nl_k, (ii + tx)%nl_k, tmp);
sk4x4[4*ty + tx] = tmp;
}
simdgroup_barrier(mem_flags::mem_threadgroup);
for (short k = 0; k < 4 && ii + k < DK16; ++k) {
k8x8_t mk;
q8x8_t mq;
simdgroup_load(mk, sk + 16*k + 0*8, 4*16, 0, true); // transpose
simdgroup_load(mq, sq + (2*(ii + k) + 0)*8, DK);
simdgroup_multiply_accumulate(mqk, mq, mk, mqk);
simdgroup_load(mk, sk + 16*k + 1*8, 4*16, 0, true); // transpose
simdgroup_load(mq, sq + (2*(ii + k) + 1)*8, DK);
simdgroup_multiply_accumulate(mqk, mq, mk, mqk);
}
}
}
simdgroup_store(mqk, ss + 8*cc, SH, 0, false);
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
// online softmax
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
const float m = M[jj];
// scale and apply the logitcap / mask
float2 s2 = ss2[j*SH/2 + tiisg]*args.scale;
if (FC_flash_attn_ext_has_scap) {
s2 = args.logit_softcap*precise::tanh(s2);
}
// mqk = mqk + slope*mask
if (blk_cur != 2) {
if (FC_flash_attn_ext_has_bias) {
s2 += s2_t(sm2[j*SH + tiisg])*slope;
} else {
s2 += s2_t(sm2[j*SH + tiisg]);
}
}
M[jj] = simd_max(max(M[jj], max(s2[0], s2[1])));
const float ms = exp(m - M[jj]);
const float2 vs2 = exp(s2 - M[jj]);
S[jj] = S[jj]*ms + simd_sum(vs2[0] + vs2[1]);
// the P matrix from the paper (Q rows, C columns)
ss2[j*SH/2 + tiisg] = vs2;
if (DV4 % NW == 0) {
FOR_UNROLL (short ii = 0; ii < DV4/NW; ++ii) {
const short i = ii*NW + tiisg;
so4[j*PV4 + i] *= ms;
}
} else {
for (short i = tiisg; i < DV4; i += NW) {
so4[j*PV4 + i] *= ms;
}
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
// O = O + (Q*K^T)*V
{
// we can read directly from global memory
if (is_same<vd4x4_t, v4x4_t>::value) {
static_assert(PV8 % NSG == 0, "");
constexpr short NO = PV8/NSG;
o8x8_t lo[NO];
{
auto sot = so + 8*sgitg;
FOR_UNROLL (short ii = 0; ii < NO; ++ii) {
simdgroup_load(lo[ii], sot, PV, 0, false);
sot += 8*NSG;
}
}
{
device const v_t * pv = (device const v_t *) (v + ic*args.nb21);
pv += 8*sgitg;
if (DV <= 64) {
FOR_UNROLL (short cc = 0; cc < C/8; ++cc) {
s8x8_t vs;
simdgroup_load(vs, ss + 8*cc, SH, 0, false);
FOR_UNROLL (short ii = 0; ii < NO/2; ++ii) {
v8x8_t mv[2];
simdgroup_load(mv[0], pv + 0*NSG + 16*ii*NSG, NS20, 0, false);
simdgroup_load(mv[1], pv + 8*NSG + 16*ii*NSG, NS20, 0, false);
simdgroup_multiply_accumulate(lo[2*ii + 0], vs, mv[0], lo[2*ii + 0]);
simdgroup_multiply_accumulate(lo[2*ii + 1], vs, mv[1], lo[2*ii + 1]);
}
pv += 8*NS20;
}
} else {
constexpr short NC = (C/8)/2;
FOR_UNROLL (short cc = 0; cc < NC; ++cc) {
s8x8_t vs[2];
simdgroup_load(vs[0], ss + 16*cc + 0, SH, 0, false);
simdgroup_load(vs[1], ss + 16*cc + 8, SH, 0, false);
FOR_UNROLL (short ii = 0; ii < NO/2; ++ii) {
v8x8_t mv[4];
simdgroup_load(mv[0], pv + 0*NSG + 16*ii*NSG + 0*8*NS20, NS20, 0, false);
simdgroup_load(mv[1], pv + 8*NSG + 16*ii*NSG + 0*8*NS20, NS20, 0, false);
simdgroup_load(mv[2], pv + 0*NSG + 16*ii*NSG + 1*8*NS20, NS20, 0, false);
simdgroup_load(mv[3], pv + 8*NSG + 16*ii*NSG + 1*8*NS20, NS20, 0, false);
simdgroup_multiply_accumulate(lo[2*ii + 0], vs[0], mv[0], lo[2*ii + 0]);
simdgroup_multiply_accumulate(lo[2*ii + 1], vs[0], mv[1], lo[2*ii + 1]);
simdgroup_multiply_accumulate(lo[2*ii + 0], vs[1], mv[2], lo[2*ii + 0]);
simdgroup_multiply_accumulate(lo[2*ii + 1], vs[1], mv[3], lo[2*ii + 1]);
}
pv += 2*8*NS20;
}
}
}
{
auto sot = so + 8*sgitg;
FOR_UNROLL (short ii = 0; ii < NO; ++ii) {
simdgroup_store(lo[ii], sot, PV, 0, false);
sot += 8*NSG;
}
}
} else {
// TODO: this is the quantized V cache branch - not optimized yet
const short tx = tiisg%4;
const short ty = tiisg/4;
for (short cc = 0; cc < C/8; ++cc) {
s8x8_t vs;
simdgroup_load(vs, ss + 8*cc, SH, 0, false);
for (short ii = 4*sgitg; ii < DV16; ii += 4*NSG) {
device const vd4x4_t * pv4x4 = (device const vd4x4_t *) (v + ((ic + 8*cc + ty)*args.nb21));
if (DV16%4 == 0) {
// no need for bound checks
{
v4x4_t tmp;
deq_v(pv4x4 + (ii + tx)/nl_v, (ii + tx)%nl_v, tmp);
sv4x4[4*ty + tx] = tmp;
}
simdgroup_barrier(mem_flags::mem_threadgroup);
FOR_UNROLL (short k = 0; k < 4; ++k) {
v8x8_t mv[2];
o8x8_t lo[2];
simdgroup_load(mv[0], sv + 16*k + 0*8, 4*16, 0, false);
simdgroup_load(mv[1], sv + 16*k + 1*8, 4*16, 0, false);
simdgroup_load(lo[0], so + 8*(2*(ii + k) + 0), PV, 0, false);
simdgroup_load(lo[1], so + 8*(2*(ii + k) + 1), PV, 0, false);
simdgroup_multiply_accumulate(lo[0], vs, mv[0], lo[0]);
simdgroup_multiply_accumulate(lo[1], vs, mv[1], lo[1]);
simdgroup_store(lo[0], so + 8*(2*(ii + k) + 0), PV, 0, false);
simdgroup_store(lo[1], so + 8*(2*(ii + k) + 1), PV, 0, false);
}
} else {
if (ii + tx < DV16) {
v4x4_t tmp;
deq_v(pv4x4 + (ii + tx)/nl_v, (ii + tx)%nl_v, tmp);
sv4x4[4*ty + tx] = tmp;
}
simdgroup_barrier(mem_flags::mem_threadgroup);
for (short k = 0; k < 4 && ii + k < DV16; ++k) {
v8x8_t mv[2];
o8x8_t lo[2];
simdgroup_load(mv[0], sv + 16*k + 0*8, 4*16, 0, false);
simdgroup_load(mv[1], sv + 16*k + 1*8, 4*16, 0, false);
simdgroup_load(lo[0], so + 8*(2*(ii + k) + 0), PV, 0, false);
simdgroup_load(lo[1], so + 8*(2*(ii + k) + 1), PV, 0, false);
simdgroup_multiply_accumulate(lo[0], vs, mv[0], lo[0]);
simdgroup_multiply_accumulate(lo[1], vs, mv[1], lo[1]);
simdgroup_store(lo[0], so + 8*(2*(ii + k) + 0), PV, 0, false);
simdgroup_store(lo[1], so + 8*(2*(ii + k) + 1), PV, 0, false);
}
}
}
}
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
}
if (FC_flash_attn_ext_has_sinks) {
FOR_UNROLL (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
const float m = M[jj];
const float s = tiisg == 0 ? ((device const float *) sinks)[iq2] : -FLT_MAX/2;
M[jj] = simd_max(max(M[jj], s));
const float ms = exp(m - M[jj]);
const float vs = exp(s - M[jj]);
S[jj] = S[jj]*ms + simd_sum(vs);
for (short i = tiisg; i < DV4; i += NW) {
so4[j*PV4 + i] *= ms;
}
}
}
}
// store to global memory
for (short jj = 0; jj < NQ; ++jj) {
const short j = jj*NSG + sgitg;
if (iq1 + j >= args.ne01) {
break;
}
device float4 * dst4 = (device float4 *) dst + ((uint64_t)iq3*args.ne2*args.ne1 + iq2 + (uint64_t)(iq1 + j)*args.ne1)*DV4;
const float scale = S[jj] == 0.0 ? 0.0f : 1.0f/S[jj];
if (DV4 % NW == 0) {
FOR_UNROLL (short ii = 0; ii < DV4/NW; ++ii) {
const short i = ii*NW + tiisg;
dst4[i] = (float4) so4[j*PV4 + i]*scale;
}
} else {
for (short i = tiisg; i < DV4; i += NW) {
dst4[i] = (float4) so4[j*PV4 + i]*scale;
}
}
}
#undef NS10
#undef NS20
}
template<
typename q_t, // query types in shared memory
typename q4_t,
typename q8x8_t,
typename k_t, // key types in shared memory
typename k4x4_t,
typename k8x8_t,
typename v_t, // value types in shared memory
typename v4x4_t,
typename v8x8_t,
typename qk_t, // Q*K types
typename qk8x8_t,
typename s_t, // soft-max types
typename s2_t,
typename s8x8_t,
typename o_t, // attention accumulation types
typename o4_t,
typename o8x8_t,
typename kd4x4_t, // key type in device memory
short nl_k,
void (*deq_k)(device const kd4x4_t *, short, thread k4x4_t &),
typename vd4x4_t, // value type in device memory
short nl_v,
void (*deq_v)(device const vd4x4_t *, short, thread v4x4_t &),
short DK, // K head size
short DV, // V head size
short Q = OP_FLASH_ATTN_EXT_NQPSG, // queries per threadgroup
short C = OP_FLASH_ATTN_EXT_NCPSG> // cache items per threadgroup
kernel void kernel_flash_attn_ext(
constant ggml_metal_kargs_flash_attn_ext & args,
device const char * q,
device const char * k,
device const char * v,
device const char * mask,
device const char * sinks,
device const char * pad,
device const char * blk,
device char * dst,
threadgroup half * shmem_f16 [[threadgroup(0)]],
uint3 tgpig[[threadgroup_position_in_grid]],
ushort tiisg[[thread_index_in_simdgroup]],
ushort sgitg[[simdgroup_index_in_threadgroup]]) {
#define FWD_TMPL q_t, q4_t, q8x8_t, k_t, k4x4_t, k8x8_t, v_t, v4x4_t, v8x8_t, qk_t, qk8x8_t, s_t, s2_t, s8x8_t, o_t, o4_t, o8x8_t, kd4x4_t, nl_k, deq_k, vd4x4_t, nl_v, deq_v, DK, DV, Q, C
#define FWD_ARGS args, q, k, v, mask, sinks, pad, blk, dst, shmem_f16, tgpig, tiisg, sgitg
switch (FC_flash_attn_ext_nsg) {
// note: disabled cases to reduce library load time
//case 1: kernel_flash_attn_ext_impl<FWD_TMPL, 1>(FWD_ARGS); break;
//case 2: kernel_flash_attn_ext_impl<FWD_TMPL, 2>(FWD_ARGS); break;
case 4: kernel_flash_attn_ext_impl<FWD_TMPL, 4>(FWD_ARGS); break;
case 8: kernel_flash_attn_ext_impl<FWD_TMPL, 8>(FWD_ARGS); break;
}
#undef FWD_TMPL
#undef FWD_ARGS
}
// TODO: this is quite ugly. in the future these types will be hardcoded in the kernel, but for now keep them as
// template to be able to explore different combinations
//
#define FA_TYPES \
half, half4, simdgroup_half8x8, \
half, half4x4, simdgroup_half8x8, \
half, half4x4, simdgroup_half8x8, \
float, simdgroup_float8x8, \
float, float2, simdgroup_float8x8, \
float, float4, simdgroup_float8x8
//half, half4, simdgroup_half8x8
#define FA_TYPES_BF \
bfloat, bfloat4, simdgroup_bfloat8x8, \
bfloat, bfloat4x4, simdgroup_bfloat8x8, \
bfloat, bfloat4x4, simdgroup_bfloat8x8, \
float, simdgroup_float8x8, \
float, float2, simdgroup_float8x8, \
half, half4, simdgroup_half8x8
//float, float4, simdgroup_float8x8
#define FA_TYPES_F32 \
half, half4, simdgroup_half8x8, \
float, float4x4, simdgroup_float8x8, \
float, float4x4, simdgroup_float8x8, \
float, simdgroup_float8x8, \
float, float2, simdgroup_float8x8, \
float, float4, simdgroup_float8x8
//half, half4, simdgroup_half8x8
typedef decltype(kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 64, 64>) flash_attn_ext_t;
template [[host_name("kernel_flash_attn_ext_f32_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 32, 32>;
template [[host_name("kernel_flash_attn_ext_f32_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 40, 40>;
template [[host_name("kernel_flash_attn_ext_f32_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 48, 48>;
template [[host_name("kernel_flash_attn_ext_f32_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 64, 64>;
template [[host_name("kernel_flash_attn_ext_f32_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 72, 72>;
template [[host_name("kernel_flash_attn_ext_f32_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 80, 80>;
template [[host_name("kernel_flash_attn_ext_f32_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 96, 96>;
template [[host_name("kernel_flash_attn_ext_f32_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 112, 112>;
template [[host_name("kernel_flash_attn_ext_f32_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 128, 128>;
template [[host_name("kernel_flash_attn_ext_f32_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 192, 192>;
template [[host_name("kernel_flash_attn_ext_f32_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 192, 128>;
template [[host_name("kernel_flash_attn_ext_f32_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 256, 256>;
template [[host_name("kernel_flash_attn_ext_f32_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 320, 256>;
template [[host_name("kernel_flash_attn_ext_f32_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 512, 512>;
template [[host_name("kernel_flash_attn_ext_f32_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_F32, float4x4, 1, dequantize_f32, float4x4, 1, dequantize_f32, 576, 512>;
template [[host_name("kernel_flash_attn_ext_f16_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 32, 32>;
template [[host_name("kernel_flash_attn_ext_f16_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 40, 40>;
template [[host_name("kernel_flash_attn_ext_f16_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 48, 48>;
template [[host_name("kernel_flash_attn_ext_f16_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 64, 64>;
template [[host_name("kernel_flash_attn_ext_f16_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 72, 72>;
template [[host_name("kernel_flash_attn_ext_f16_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 80, 80>;
template [[host_name("kernel_flash_attn_ext_f16_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 96, 96>;
template [[host_name("kernel_flash_attn_ext_f16_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 112, 112>;
template [[host_name("kernel_flash_attn_ext_f16_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 128, 128>;
template [[host_name("kernel_flash_attn_ext_f16_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 192, 192>;
template [[host_name("kernel_flash_attn_ext_f16_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 192, 128>;
template [[host_name("kernel_flash_attn_ext_f16_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 256, 256>;
template [[host_name("kernel_flash_attn_ext_f16_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 320, 256>;
template [[host_name("kernel_flash_attn_ext_f16_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 512, 512>;
template [[host_name("kernel_flash_attn_ext_f16_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, half4x4, 1, dequantize_f16, half4x4, 1, dequantize_f16, 576, 512>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_bf16_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 32, 32>;
template [[host_name("kernel_flash_attn_ext_bf16_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 40, 40>;
template [[host_name("kernel_flash_attn_ext_bf16_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 48, 48>;
template [[host_name("kernel_flash_attn_ext_bf16_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 64, 64>;
template [[host_name("kernel_flash_attn_ext_bf16_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 72, 72>;
template [[host_name("kernel_flash_attn_ext_bf16_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 80, 80>;
template [[host_name("kernel_flash_attn_ext_bf16_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 96, 96>;
template [[host_name("kernel_flash_attn_ext_bf16_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 112, 112>;
template [[host_name("kernel_flash_attn_ext_bf16_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 128, 128>;
template [[host_name("kernel_flash_attn_ext_bf16_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 192, 192>;
template [[host_name("kernel_flash_attn_ext_bf16_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 192, 128>;
template [[host_name("kernel_flash_attn_ext_bf16_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 256, 256>;
template [[host_name("kernel_flash_attn_ext_bf16_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 320, 256>;
template [[host_name("kernel_flash_attn_ext_bf16_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 512, 512>;
template [[host_name("kernel_flash_attn_ext_bf16_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES_BF, bfloat4x4, 1, dequantize_bf16, bfloat4x4, 1, dequantize_bf16, 576, 512>;
#endif
template [[host_name("kernel_flash_attn_ext_q4_0_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 32, 32>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 40, 40>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 48, 48>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 64, 64>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 72, 72>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 80, 80>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 96, 96>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 112, 112>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 128, 128>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 192, 192>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 192, 128>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 256, 256>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 320, 256>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 512, 512>;
template [[host_name("kernel_flash_attn_ext_q4_0_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_0, 2, dequantize_q4_0, block_q4_0, 2, dequantize_q4_0, 576, 512>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 32, 32>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 40, 40>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 48, 48>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 64, 64>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 72, 72>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 80, 80>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 96, 96>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 112, 112>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 128, 128>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 192, 192>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 192, 128>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 256, 256>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 320, 256>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 512, 512>;
template [[host_name("kernel_flash_attn_ext_q4_1_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q4_1, 2, dequantize_q4_1, block_q4_1, 2, dequantize_q4_1, 576, 512>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 32, 32>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 40, 40>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 48, 48>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 64, 64>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 72, 72>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 80, 80>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 96, 96>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 112, 112>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 128, 128>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 192, 192>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 192, 128>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 256, 256>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 320, 256>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 512, 512>;
template [[host_name("kernel_flash_attn_ext_q5_0_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_0, 2, dequantize_q5_0, block_q5_0, 2, dequantize_q5_0, 576, 512>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 32, 32>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 40, 40>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 48, 48>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 64, 64>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 72, 72>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 80, 80>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 96, 96>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 112, 112>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 128, 128>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 192, 192>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 192, 128>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 256, 256>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 320, 256>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 512, 512>;
template [[host_name("kernel_flash_attn_ext_q5_1_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q5_1, 2, dequantize_q5_1, block_q5_1, 2, dequantize_q5_1, 576, 512>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk32_dv32" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 32, 32>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk40_dv40" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 40, 40>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk48_dv48" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 48, 48>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk64_dv64" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 64, 64>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk72_dv72" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 72, 72>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk80_dv80" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 80, 80>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk96_dv96" )]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 96, 96>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk112_dv112")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 112, 112>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk128_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 128, 128>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk192_dv192")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 192, 192>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk192_dv128")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 192, 128>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk256_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 256, 256>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk320_dv256")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 320, 256>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk512_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 512, 512>;
template [[host_name("kernel_flash_attn_ext_q8_0_dk576_dv512")]] kernel flash_attn_ext_t kernel_flash_attn_ext<FA_TYPES, block_q8_0, 2, dequantize_q8_0, block_q8_0, 2, dequantize_q8_0, 576, 512>;
#undef FA_TYPES
#undef FA_TYPES_BF
#undef FA_TYPES_F32
constant bool FC_flash_attn_ext_vec_has_mask [[function_constant(FC_FLASH_ATTN_EXT_VEC + 0)]];
constant bool FC_flash_attn_ext_vec_has_sinks [[function_constant(FC_FLASH_ATTN_EXT_VEC + 1)]];
constant bool FC_flash_attn_ext_vec_has_bias [[function_constant(FC_FLASH_ATTN_EXT_VEC + 2)]];
constant bool FC_flash_attn_ext_vec_has_scap [[function_constant(FC_FLASH_ATTN_EXT_VEC + 3)]];
constant bool FC_flash_attn_ext_vec_has_kvpad [[function_constant(FC_FLASH_ATTN_EXT_VEC + 4)]];
//constant float FC_flash_attn_ext_vec_scale [[function_constant(FC_FLASH_ATTN_EXT_VEC + 10)]];
//constant float FC_flash_attn_ext_vec_max_bias [[function_constant(FC_FLASH_ATTN_EXT_VEC + 11)]];
//constant float FC_flash_attn_ext_vec_logit_softcap [[function_constant(FC_FLASH_ATTN_EXT_VEC + 12)]];
constant int32_t FC_flash_attn_ext_vec_ns10 [[function_constant(FC_FLASH_ATTN_EXT_VEC + 20)]];
constant int32_t FC_flash_attn_ext_vec_ns20 [[function_constant(FC_FLASH_ATTN_EXT_VEC + 21)]];
constant int32_t FC_flash_attn_ext_vec_nsg [[function_constant(FC_FLASH_ATTN_EXT_VEC + 22)]];
constant int32_t FC_flash_attn_ext_vec_nwg [[function_constant(FC_FLASH_ATTN_EXT_VEC + 23)]];
constant bool FC_flash_attn_ext_vec_has_sparse [[function_constant(FC_FLASH_ATTN_EXT_VEC + 5)]];
// compress the finite entries of each KQ mask row into a list of KV indices (ascending order),
// padded with -1 up to n_kv_max_padded (a multiple of OP_FLASH_ATTN_EXT_VEC_NCPSG)
// one threadgroup per mask row; the mask remains the single source of truth for the values
kernel void kernel_flash_attn_ext_vec_idx(
constant ggml_metal_kargs_flash_attn_ext_vec_idx & args,
device const half * mask,
device int * idx,
uint3 tgpig[[threadgroup_position_in_grid]],
ushort tiitg[[thread_index_in_threadgroup]],
ushort3 ntg[[threads_per_threadgroup]]) {
constexpr short NW = N_SIMDWIDTH;
constexpr short NLOCAL = 32; // max finite positions kept in registers per thread
const int i1 = tgpig[0];
const int i2 = tgpig[1];
const int i3 = tgpig[2];
device const half * pm = (device const half *) ((device const char *) mask + i1*args.nb31 + i2*args.nb32 + i3*args.nb33);
device int * pidx = idx + (((int64_t)i3*args.ne32 + i2)*args.ne31 + i1)*args.n_kv_max_padded;
const int n = args.ne30;
const int q = n/ntg.x;
const int r = n%ntg.x;
// each thread handles a contiguous slice of the mask row
const int r0 = q*tiitg + min((int) tiitg, r);
const int r1 = r0 + q + (tiitg < r ? 1 : 0);
// count the finite entries in the slice and keep their positions in registers (single mask read)
int cnt = 0; // total finite entries in the slice
int nloc = 0; // finite entries kept in registers
int local[NLOCAL];
for (int i = r0; i < r1; ++i) {
if (isfinite((float) pm[i])) {
if (nloc < NLOCAL) {
local[nloc] = i;
nloc++;
}
cnt++;
}
}
const short sgitg = tiitg/NW;
const short tiisg = tiitg%NW;
threadgroup int tcount[8];
// simd_sum is a collective: all lanes must evaluate it
const int sg_sum = simd_sum(cnt);
if (tiisg == 0) {
tcount[sgitg] = sg_sum;
}
threadgroup_barrier(mem_flags::mem_threadgroup);
int total = 0;
for (short s = 0; s < ntg.x/NW; ++s) {
total += tcount[s];
}
// base offset of this thread's slice in the output list (exclusive scan within the simdgroup)
int sg_base = 0;
for (short s = 0; s < sgitg; ++s) {
sg_base += tcount[s];
}
// exclusive prefix scan of the per-thread counts within the simdgroup
int incl = cnt;
for (int d = 1; d < NW; d <<= 1) {
const int v = simd_shuffle_up(incl, d);
if (tiisg >= d) {
incl += v;
}
}
const int base = sg_base + (incl - cnt);
// write the finite positions in order; if the hint is violated, keep only the first n_kv_max entries
int j = 0;
for (; j < nloc && base + j < args.n_kv_max; ++j) {
pidx[base + j] = local[j];
}
// a dense mask may have more than NLOCAL finite entries in a slice; re-read the mask to write the rest
if (cnt > nloc && base + nloc < args.n_kv_max) {
int j2 = 0;
for (int i = r0; i < r1; ++i) {
if (isfinite((float) pm[i])) {
if (j2 >= nloc) {
pidx[base + j2] = i;
}
j2++;
if (base + j2 >= args.n_kv_max) {
break;
}
}
}
}
// pad the tail of the list with -1
const int count = min(total, args.n_kv_max);
for (int i = count + tiitg; i < args.n_kv_max_padded; i += ntg.x) {
pidx[i] = -1;
}
}
template<
typename q4_t, // query types in shared memory
typename k4_t, // key types in shared memory
typename v4_t, // value types in shared memory
typename qk_t, // Q*K types
typename s_t, // soft-max types
typename s4_t,
typename o4_t, // attention accumulation types
typename kd4_t, // key type in device memory
short nl_k,
void (*deq_k_t4)(device const kd4_t *, short, thread k4_t &),
typename vd4_t, // value type in device memory
short nl_v,
void (*deq_v_t4)(device const vd4_t *, short, thread v4_t &),
short DK, // K head size
short DV, // V head size
short NE = 4, // head elements per thread
short Q = OP_FLASH_ATTN_EXT_VEC_NQPSG, // queries per threadgroup
short C = OP_FLASH_ATTN_EXT_VEC_NCPSG> // cache items per threadgroup
kernel void kernel_flash_attn_ext_vec(
constant ggml_metal_kargs_flash_attn_ext_vec & args,
device const char * q,
device const char * k,
device const char * v,
device const char * mask,
device const char * sinks,
device const char * pad,
device char * dst,
device const char * idx,
threadgroup half * shmem_f16 [[threadgroup(0)]],
uint3 tgpig[[threadgroup_position_in_grid]],
ushort tiisg[[thread_index_in_simdgroup]],
ushort sgitg[[simdgroup_index_in_threadgroup]]) {
static_assert(DK % 32 == 0, "DK must be divisible by 32");
static_assert(DV % 32 == 0, "DV must be divisible by 32");
#define NWG (FC_flash_attn_ext_vec_nwg)
#define NSG (FC_flash_attn_ext_vec_nsg)
#define NS10 (FC_flash_attn_ext_vec_ns10)
#define NS20 (FC_flash_attn_ext_vec_ns20)
const short iwg = tgpig[2]%NWG;
const ushort iq3 = tgpig[2]/NWG;
const ushort iq2 = tgpig[1];
const ushort iq1 = tgpig[0];
constexpr short DK4 = DK/4;
constexpr short DV4 = DV/4;
constexpr short PK = PAD2(DK, 128);
constexpr short PK4 = PK/4;
constexpr short PV = PAD2(DV, 128);
constexpr short PV4 = PV/4;
constexpr short NW = N_SIMDWIDTH;
constexpr short NL = NW/NE; // note: this can be adjusted to support different head sizes and simdgroup work loads
constexpr short SH = 4*Q*C; // shared memory per simdgroup
static_assert(DK4 % NL == 0, "DK4 must be divisible by NL");
static_assert(DV4 % NL == 0, "DV4 must be divisible by NL");
//const short T = PK + NSG*SH; // shared memory size per query in (half)
//threadgroup q_t * sq = (threadgroup q_t *) (shmem_f16 + 0*PK); // holds the query data
threadgroup q4_t * sq4 = (threadgroup q4_t *) (shmem_f16 + 0*PK); // same as above but in q4_t
threadgroup s_t * ss = (threadgroup s_t *) (shmem_f16 + sgitg*SH + Q*NSG*PK); // scratch buffer for attention
threadgroup s4_t * ss4 = (threadgroup s4_t *) (shmem_f16 + sgitg*SH + Q*NSG*PK); // same as above but in s4_t
threadgroup half * sm = (threadgroup half *) (shmem_f16 + sgitg*SH + 2*Q*C + Q*NSG*PK); // scratch buffer for mask
threadgroup o4_t * so4 = (threadgroup o4_t *) (shmem_f16 + 2*sgitg*Q*PV + Q*NSG*PK + NSG*SH); // scratch buffer for the results
// store the result for all queries in shared memory (the O matrix from the paper)
so4 += tiisg;
{
q += iq1*Q*args.nb01 + iq2*args.nb02 + iq3*args.nb03;
const short ikv2 = iq2/(args.ne02/args.ne_12_2);
const short ikv3 = iq3/(args.ne03/args.ne_12_3);
k += ikv2*args.nb12 + ikv3*args.nb13;
v += ikv2*args.nb22 + ikv3*args.nb23;
}
// load Q query rows to shared memory
{
for (short qq = 0; qq < Q; ++qq) {
const int iq1_q = iq1*Q + qq;
device const float4 * q4 = (device const float4 *) ((device const char *) q + qq*args.nb01);
if (iq1_q < args.ne01) {
for (short i = tiisg; i < PK4; i += NW) {
if (i < DK4) {
sq4[qq*PK4 + i] = (q4_t) q4[i];
} else {
sq4[qq*PK4 + i] = (q4_t) 0.0f;
}
}
} else {
for (short i = tiisg; i < PK4; i += NW) {
sq4[qq*PK4 + i] = (q4_t) 0.0f;
}
}
}
}
// zero out so
for (short qq = 0; qq < Q; ++qq) {
for (short i = 0; i < DV4/NL; ++i) {
so4[qq*DV4 + i*NL] = (o4_t) 0.0f;
}
}
// zero out shared memory SH
for (short i = tiisg; i < SH/4; i += NW) {
ss4[i] = (s4_t) 0.0f;
}
threadgroup_barrier(mem_flags::mem_threadgroup);
{
float S[Q];
float M[Q];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
S[qq] = 0.0f;
M[qq] = -FLT_MAX/2;
}
// thread indices inside the simdgroup
const short tx = tiisg%NL;
const short ty = tiisg/NL;
// pointer to the mask
device const half * pm_base = (device const half *) (mask + iq1*Q*args.nb31 + (iq2%args.ne32)*args.nb32 + (iq3%args.ne33)*args.nb33);
// sparse indices: the list of finite mask entries per query row
// the sparse path requires Q == 1 (enforced by the host)
device const int * pidx = nullptr;
if (FC_flash_attn_ext_vec_has_sparse) {
pidx = (device const int *) idx +
((int64_t)(iq3%args.ne33)*args.ne32 + (iq2%args.ne32))*args.ne31*args.n_kv_max_padded + (iq1%args.ne31)*args.n_kv_max_padded;
}
float slope = 1.0f;
// ALiBi
if (FC_flash_attn_ext_vec_has_bias) {
const short h = iq2;
const float base = h < args.n_head_log2 ? args.m0 : args.m1;
const short exph = h < args.n_head_log2 ? h + 1 : 2*(h - args.n_head_log2) + 1;
slope = pow(base, exph);
}
// loop over the KV cache
// each simdgroup handles blocks of Q rows and C columns
for (int ic0 = iwg*NSG + sgitg; ; ic0 += NWG*NSG) {
int ic = ic0*C;
if (ic >= args.ne11) {
break;
}
device const half * pm[Q];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
// padded query rows clamp to row 0 of the mask to avoid OOB; their scores
// are forced to -inf below, so the values never affect the result.
pm[qq] = pm_base + ((iq1*Q + qq) < args.ne01 ? qq*(args.nb31/sizeof(half)) : -iq1*Q*(args.nb31/sizeof(half)));
}
// the last partial chunk uses the pad buffer as source
if (FC_flash_attn_ext_vec_has_kvpad && ic + C > args.ne11) {
k = pad;
v = k + args.nb11*C*args.ne_12_2*args.ne_12_3;
mask = v + args.nb21*C*args.ne_12_2*args.ne_12_3;
const short ikv2 = iq2/(args.ne02/args.ne_12_2);
const short ikv3 = iq3/(args.ne03/args.ne_12_3);
k += (ikv2 + ikv3*args.ne_12_2)*args.nb11*C;
v += (ikv2 + ikv3*args.ne_12_2)*args.nb21*C;
if (!FC_flash_attn_ext_vec_has_mask) {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
if (ic + tiisg >= args.ne11) {
sm[qq*C + tiisg] = -MAXHALF;
}
}
} else {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
pm[qq] = (device const half *) (mask) +
(iq1*Q + qq)*C +
(iq2%args.ne32)*(C*args.ne31) +
(iq3%args.ne33)*(C*args.ne31*args.ne32);
}
}
ic = 0;
}
if (FC_flash_attn_ext_vec_has_mask) {
if (FC_flash_attn_ext_vec_has_sparse) {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
const int i11 = pidx[ic + tiisg];
if ((iq1*Q + qq) < args.ne01 && i11 >= 0) {
sm[qq*C + tiisg] = pm[qq][i11];
} else {
sm[qq*C + tiisg] = -MAXHALF;
}
}
} else {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
if ((iq1*Q + qq) < args.ne01) {
sm[qq*C + tiisg] = pm[qq][ic + tiisg];
} else {
sm[qq*C + tiisg] = -MAXHALF;
}
}
}
} else {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
if ((iq1*Q + qq) >= args.ne01) {
sm[qq*C + tiisg] = -MAXHALF;
}
}
}
// skip -INF mask
{
bool any_finite = false;
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
if (simd_max(sm[qq*C + tiisg]) > -MAXHALF) {
any_finite = true;
}
}
if (!any_finite) {
continue;
}
}
// Q*K^T
{
device const k4_t * pk4 = nullptr;
if (!FC_flash_attn_ext_vec_has_sparse) {
pk4 = (device const k4_t *) (k + ic*args.nb11);
pk4 += ty*NS10/4 + tx;
}
qk_t mqk[Q][C/NE];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
FOR_UNROLL (short cc = 0; cc < C/NE; ++cc) {
mqk[qq][cc] = 0.0f;
}
}
// each simdgroup processes Q queries and NE (NW/NL) cache elements
FOR_UNROLL (short cc = 0; cc < C/NE; ++cc) {
if (FC_flash_attn_ext_vec_has_sparse) {
// the KV rows are gathered from the index list; -1 entries are padding
const int i11 = pidx[ic + NE*cc + ty];
if (i11 >= 0) {
if (is_same<kd4_t, k4_t>::value) {
device const k4_t * pk4s = (device const k4_t *) (k + i11*args.nb11) + tx;
FOR_UNROLL (short ii = 0; ii < DK4/NL; ++ii) {
const k4_t k_elem = pk4s[ii*NL];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
mqk[qq][cc] += dot((float4) k_elem, (float4) sq4[qq*PK4 + ii*NL + tx]);
}
}
} else {
device const kd4_t * pk = (device const kd4_t *) (k + i11*args.nb11);
k4_t mk;
FOR_UNROLL (short ii = 0; ii < DK4/NL; ++ii) {
const short i = ii*NL + tx;
deq_k_t4(pk + i/nl_k, i%nl_k, mk);
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
mqk[qq][cc] += dot((float4) mk, (float4) sq4[qq*PK4 + i]);
}
}
}
}
} else if (is_same<kd4_t, k4_t>::value) {
FOR_UNROLL (short ii = 0; ii < DK4/NL; ++ii) {
const k4_t k_elem = pk4[cc*NE*NS10/4 + ii*NL];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
mqk[qq][cc] += dot((float4) k_elem, (float4) sq4[qq*PK4 + ii*NL + tx]);
}
}
} else {
device const kd4_t * pk = (device const kd4_t *) (k + ((ic + NE*cc + ty)*args.nb11));
k4_t mk;
FOR_UNROLL (short ii = 0; ii < DK4/NL; ++ii) {
const short i = ii*NL + tx;
deq_k_t4(pk + i/nl_k, i%nl_k, mk);
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
mqk[qq][cc] += dot((float4) mk, (float4) sq4[qq*PK4 + i]);
}
}
}
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
if (NE == 1) {
mqk[qq][cc] = simd_sum(mqk[qq][cc]);
} else {
// simdgroup reduce (NE = 4)
// [ 0 .. 7] -> [ 0]
// [ 8 .. 15] -> [ 8]
// [16 .. 23] -> [16]
// [24 .. 31] -> [24]
if (NE <= 1) {
mqk[qq][cc] += simd_shuffle_down(mqk[qq][cc], 16);
}
if (NE <= 2) {
mqk[qq][cc] += simd_shuffle_down(mqk[qq][cc], 8);
}
if (NE <= 4) {
mqk[qq][cc] += simd_shuffle_down(mqk[qq][cc], 4);
}
if (NE <= 8) {
mqk[qq][cc] += simd_shuffle_down(mqk[qq][cc], 2);
}
if (NE <= 16) {
mqk[qq][cc] += simd_shuffle_down(mqk[qq][cc], 1);
}
// broadcast
mqk[qq][cc] = simd_shuffle(mqk[qq][cc], NL*ty);
}
}
}
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
if (FC_flash_attn_ext_vec_has_mask &&
!FC_flash_attn_ext_vec_has_scap &&
!FC_flash_attn_ext_vec_has_bias) {
ss[qq*C + NE*tx + ty] = fma(mqk[qq][tx], args.scale, (qk_t) sm[qq*C + NE*tx + ty]);
} else {
mqk[qq][tx] *= args.scale;
if (FC_flash_attn_ext_vec_has_scap) {
mqk[qq][tx] = args.logit_softcap*precise::tanh(mqk[qq][tx]);
}
if (FC_flash_attn_ext_vec_has_bias) {
mqk[qq][tx] += (qk_t) sm[qq*C + NE*tx + ty]*slope;
} else {
mqk[qq][tx] += (qk_t) sm[qq*C + NE*tx + ty];
}
ss[qq*C + NE*tx + ty] = mqk[qq][tx];
}
}
}
simdgroup_barrier(mem_flags::mem_threadgroup);
// online softmax
{
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
const float m = M[qq];
const float s = ss[qq*C + tiisg];
M[qq] = simd_max(max(M[qq], s));
const float ms = exp(m - M[qq]);
const float vs = exp(s - M[qq]);
S[qq] = S[qq]*ms + simd_sum(vs);
// the P matrix from the paper (Q rows, C columns)
ss[qq*C + tiisg] = vs;
// O = diag(ms)*O
if ((DV4/NL % NW == 0) || ty == 0) {
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
so4[qq*DV4 + ii*NL] *= ms;
}
}
}
}
simdgroup_barrier(mem_flags::mem_threadgroup);
// O = O + (Q*K^T)*V
{
o4_t lo[Q][DV4/NL];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
lo[qq][ii] = 0.0f;
}
}
if (FC_flash_attn_ext_vec_has_sparse) {
FOR_UNROLL (short cc = 0; cc < C/NE; ++cc) {
// the KV rows are gathered from the index list; -1 entries are padding
const int i11 = pidx[ic + NE*cc + ty];
if (i11 >= 0) {
if (is_same<vd4_t, v4_t>::value) {
device const v4_t * pv4 = (device const v4_t *) (v + i11*args.nb21);
pv4 += tx;
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
const v4_t v_elem = pv4[ii*NL];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
lo[qq][ii] += o4_t(float4(v_elem)*float4(ss[qq*C + cc*NE + ty]));
}
}
} else {
device const vd4_t * pv4 = (device const vd4_t *) (v + i11*args.nb21);
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
const short i = ii*NL + tx;
v4_t mv;
deq_v_t4(pv4 + i/nl_v, i%nl_v, mv);
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
lo[qq][ii] += o4_t(float4(mv)*float4(ss[qq*C + cc*NE + ty]));
}
}
}
}
}
} else if (is_same<vd4_t, v4_t>::value) {
device const v4_t * pv4 = (device const v4_t *) (v + ic*args.nb21);
pv4 += ty*NS20/4 + tx;
FOR_UNROLL (short cc = 0; cc < C/NE; ++cc) {
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
const v4_t v_elem = pv4[cc*NE*NS20/4 + ii*NL];
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
lo[qq][ii] += o4_t(float4(v_elem)*float4(ss[qq*C + cc*NE + ty]));
}
}
}
} else {
FOR_UNROLL (short cc = 0; cc < C/NE; ++cc) {
device const vd4_t * pv4 = (device const vd4_t *) (v + ((ic + NE*cc + ty)*args.nb21));
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
const short i = ii*NL + tx;
v4_t mv;
deq_v_t4(pv4 + i/nl_v, i%nl_v, mv);
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
lo[qq][ii] += o4_t(float4(mv)*float4(ss[qq*C + NE*cc + ty]));
}
}
}
}
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
if (NE > 1) {
lo[qq][ii][0] += simd_shuffle_down(lo[qq][ii][0], 16);
lo[qq][ii][1] += simd_shuffle_down(lo[qq][ii][1], 16);
lo[qq][ii][2] += simd_shuffle_down(lo[qq][ii][2], 16);
lo[qq][ii][3] += simd_shuffle_down(lo[qq][ii][3], 16);
}
if (NE > 2) {
lo[qq][ii][0] += simd_shuffle_down(lo[qq][ii][0], 8);
lo[qq][ii][1] += simd_shuffle_down(lo[qq][ii][1], 8);
lo[qq][ii][2] += simd_shuffle_down(lo[qq][ii][2], 8);
lo[qq][ii][3] += simd_shuffle_down(lo[qq][ii][3], 8);
}
if (NE > 4) {
lo[qq][ii][0] += simd_shuffle_down(lo[qq][ii][0], 4);
lo[qq][ii][1] += simd_shuffle_down(lo[qq][ii][1], 4);
lo[qq][ii][2] += simd_shuffle_down(lo[qq][ii][2], 4);
lo[qq][ii][3] += simd_shuffle_down(lo[qq][ii][3], 4);
}
if (NE > 8) {
lo[qq][ii][0] += simd_shuffle_down(lo[qq][ii][0], 2);
lo[qq][ii][1] += simd_shuffle_down(lo[qq][ii][1], 2);
lo[qq][ii][2] += simd_shuffle_down(lo[qq][ii][2], 2);
lo[qq][ii][3] += simd_shuffle_down(lo[qq][ii][3], 2);
}
if (NE > 16) {
lo[qq][ii][0] += simd_shuffle_down(lo[qq][ii][0], 1);
lo[qq][ii][1] += simd_shuffle_down(lo[qq][ii][1], 1);
lo[qq][ii][2] += simd_shuffle_down(lo[qq][ii][2], 1);
lo[qq][ii][3] += simd_shuffle_down(lo[qq][ii][3], 1);
}
}
}
if ((DV4/NL % NW == 0) || ty == 0) {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
so4[qq*DV4 + ii*NL] += lo[qq][ii];
}
}
}
}
}
if (FC_flash_attn_ext_vec_has_sinks && sgitg == 0 && iwg == 0) {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
const float m = M[qq];
const float s = tiisg == 0 ? ((device const float *) sinks)[iq2] : -FLT_MAX/2;
M[qq] = simd_max(max(M[qq], s));
const float ms = exp(m - M[qq]);
const float vs = exp(s - M[qq]);
S[qq] = S[qq]*ms + simd_sum(vs);
if ((DV4/NL % NW == 0) || ty == 0) {
FOR_UNROLL (short ii = 0; ii < DV4/NL; ++ii) {
so4[qq*DV4 + ii*NL] *= ms;
}
}
}
}
// these are needed for reducing the results from the simdgroups (reuse the ss buffer)
if (tiisg == 0) {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
ss[2*qq + 0] = (s_t) S[qq];
ss[2*qq + 1] = (s_t) M[qq];
}
}
}
so4 -= tiisg;
threadgroup_barrier(mem_flags::mem_threadgroup);
// parallel reduce
for (short r = NSG/2; r > 0; r >>= 1) {
if (sgitg < r) {
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
const float S0 = ss[ 2*qq + 0];
const float S1 = ss[r*(SH/2) + 2*qq + 0];
const float M0 = ss[ 2*qq + 1];
const float M1 = ss[r*(SH/2) + 2*qq + 1];
const float Mx = max(M0, M1);
const float ms0 = exp(M0 - Mx);
const float ms1 = exp(M1 - Mx);
const float Sx = S0*ms0 + S1*ms1;
if (tiisg == 0) {
ss[2*qq + 0] = Sx;
ss[2*qq + 1] = Mx;
}
// O_0 = diag(ms0)*O_0 + diag(ms1)*O_1
for (short i = tiisg; i < DV4; i += NW) {
so4[qq*DV4 + i] = so4[qq*DV4 + i]*ms0 + so4[qq*DV4 + i + r*Q*PV4]*ms1;
}
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
}
// final rescale with 1/S and store to global memory
if (sgitg == 0) {
const int64_t nrows = args.ne3*args.ne2*args.ne1;
device float4 * dst4 = (device float4 *) dst;
device float * dst1 = (device float *) dst + nrows*DV*NWG; // the S and M are stored after the results
FOR_UNROLL (short qq = 0; qq < Q; ++qq) {
const int iq1_q = iq1*Q + qq;
if (iq1_q >= args.ne01) {
continue;
}
const int64_t rid = iq3*args.ne2*args.ne1 + iq2 + iq1_q*args.ne1;
const float Sval = NWG == 1 ? (ss[2*qq + 0] == 0.0f ? 0.0f : 1.0f/ss[2*qq + 0]) : 1.0f;
// interleave the workgroup data
for (short i = tiisg; i < DV4; i += NW) {
dst4[rid*DV4*NWG + NWG*i + iwg] = (float4) so4[qq*DV4 + i]*Sval;
}
// store S and M
if (NWG > 1) {
if (tiisg == 0) {
dst1[rid*(2*NWG) + 2*iwg + 0] = ss[2*qq + 0];
dst1[rid*(2*NWG) + 2*iwg + 1] = ss[2*qq + 1];
}
}
}
}
#undef NWG
#undef NSG
#undef NS10
#undef NS20
}
// note: I think the s_t can be half instead of float, because the Q*K scaling is done before storing to shared mem
// in the other (non-vec) kernel, we need s_t to also be float because we scale during the soft_max
//
#define FA_TYPES \
half4, \
half4, \
half4, \
float, \
float, float4, \
float4
#define FA_TYPES_F32 \
half4, \
float4, \
float4, \
float, \
float, float4, \
float4
typedef decltype(kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 4>) flash_attn_ext_vec_t;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk32_dv32_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 32, 32, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk32_dv32_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 32, 32, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 32, 32, 4>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk32_dv32_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 32, 32, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk32_dv32_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 32, 32, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk32_dv32_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 32, 32, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk32_dv32_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 32, 32, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk32_dv32_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 32, 32, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk32_dv32_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 32, 32, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk32_dv32_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 32, 32, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk32_dv32_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 32, 32, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk32_dv32")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 32, 32, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk32_dv32_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 32, 32, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk32_dv32_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 32, 32, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk64_dv64_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 64, 64, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk64_dv64_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 64, 64, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk64_dv64_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 64, 64, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk64_dv64_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 64, 64, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk64_dv64_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 64, 64, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 64, 64, 2>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk64_dv64_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 64, 64, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk64_dv64_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 64, 64, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk64_dv64_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 64, 64, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk64_dv64_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 64, 64, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk64_dv64_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 64, 64, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk64_dv64_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 64, 64, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk64_dv64_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 64, 64, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk64_dv64_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 64, 64, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk64_dv64_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 64, 64, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk64_dv64_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 64, 64, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk64_dv64_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 64, 64, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk64_dv64_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 64, 64, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk64_dv64_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 64, 64, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk64_dv64_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 64, 64, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk64_dv64_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 64, 64, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk64_dv64_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 64, 64, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk64_dv64_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 64, 64, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk64_dv64_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 64, 64, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk64_dv64_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 64, 64, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk64_dv64_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 64, 64, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk64_dv64")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 64, 64, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk64_dv64_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 64, 64, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk64_dv64_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 64, 64, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk64_dv64_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 64, 64, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk64_dv64_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 64, 64, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk64_dv64_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 64, 64, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk96_dv96_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 96, 96, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk96_dv96_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 96, 96, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 96, 96, 4>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk96_dv96_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 96, 96, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk96_dv96_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 96, 96, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk96_dv96_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 96, 96, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk96_dv96_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 96, 96, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk96_dv96_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 96, 96, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk96_dv96_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 96, 96, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk96_dv96_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 96, 96, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk96_dv96_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 96, 96, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk96_dv96")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 96, 96, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk96_dv96_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 96, 96, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk96_dv96_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 96, 96, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk128_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 128, 128, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 128, 128, 1>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk128_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 128, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk128_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 128, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk128_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 128, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk128_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 128, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk128_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 128, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv192_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 192, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv192_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 192, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv192_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 192, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv192_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 192, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv192_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 192, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 192, 192, 2>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv192_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 192, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv192_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 192, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv192_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 192, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv192_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 192, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv192_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 192, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv192_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 192, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv192_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 192, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv192_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 192, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv192_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 192, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv192_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 192, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv192_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 192, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv192_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 192, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv192_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 192, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv192_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 192, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv192_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 192, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv192_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 192, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv192_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 192, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv192_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 192, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv192_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 192, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv192_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 192, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv192")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 192, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv192_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 192, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv192_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 192, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv192_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 192, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv192_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 192, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv192_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 192, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk192_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 192, 128, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 192, 128, 2>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk192_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 192, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk192_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 192, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk192_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 192, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk192_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 192, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv128")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 128, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv128_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 128, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv128_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 128, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv128_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 128, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv128_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 128, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk192_dv128_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 192, 128, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk256_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 256, 256, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 256, 256, 1>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk256_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 256, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk256_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 256, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk256_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 256, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk256_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 256, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk256_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 256, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk320_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 320, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk320_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 320, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk320_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 320, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk320_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 320, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk320_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 320, 256, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 320, 256, 2>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk320_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 320, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk320_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 320, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk320_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 320, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk320_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 320, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk320_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 320, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk320_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 320, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk320_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 320, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk320_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 320, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk320_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 320, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk320_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 320, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk320_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 320, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk320_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 320, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk320_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 320, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk320_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 320, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk320_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 320, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk320_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 320, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk320_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 320, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk320_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 320, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk320_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 320, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk320_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 320, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk320_dv256")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 320, 256, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk320_dv256_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 320, 256, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk320_dv256_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 320, 256, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk320_dv256_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 320, 256, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk320_dv256_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 320, 256, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk320_dv256_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 320, 256, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk512_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 512, 512, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 512, 512, 1>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk512_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 512, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk512_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 512, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk512_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 512, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk512_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 512, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q1_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 2, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q2_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 1, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q4_ne1")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 1, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk512_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 512, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f32_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES_F32, float4, 1, dequantize_f32_t4, float4, 1, dequantize_f32_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk576_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 576, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk576_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 576, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk576_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 576, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk576_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 576, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_f16_dk576_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, half4, 1, dequantize_f16_t4, half4, 1, dequantize_f16_t4, 576, 512, 4, 4>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_flash_attn_ext_vec_bf16_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, bfloat4, 1, dequantize_bf16_t4, bfloat4, 1, dequantize_bf16_t4, 576, 512, 2>;
#endif
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk576_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 576, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk576_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 576, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk576_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 576, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk576_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 576, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_0_dk576_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_0, 8, dequantize_q4_0_t4, block_q4_0, 8, dequantize_q4_0_t4, 576, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk576_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 576, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk576_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 576, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk576_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 576, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk576_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 576, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q4_1_dk576_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q4_1, 8, dequantize_q4_1_t4, block_q4_1, 8, dequantize_q4_1_t4, 576, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk576_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 576, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk576_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 576, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk576_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 576, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk576_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 576, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_0_dk576_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_0, 8, dequantize_q5_0_t4, block_q5_0, 8, dequantize_q5_0_t4, 576, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk576_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 576, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk576_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 576, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk576_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 576, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk576_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 576, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q5_1_dk576_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q5_1, 8, dequantize_q5_1_t4, block_q5_1, 8, dequantize_q5_1_t4, 576, 512, 4, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk576_dv512")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 576, 512, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk576_dv512_q1_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 576, 512, 4, 1>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk576_dv512_q2_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 576, 512, 2, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk576_dv512_q2_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 576, 512, 4, 2>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk576_dv512_q4_ne2")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 576, 512, 2, 4>;
template [[host_name("kernel_flash_attn_ext_vec_q8_0_dk576_dv512_q4_ne4")]] kernel flash_attn_ext_vec_t kernel_flash_attn_ext_vec<FA_TYPES, block_q8_0, 8, dequantize_q8_0_t4, block_q8_0, 8, dequantize_q8_0_t4, 576, 512, 4, 4>;
#undef FA_TYPES
#undef FA_TYPES_F32
constant int32_t FC_flash_attn_ext_vec_reduce_DV [[function_constant(FC_FLASH_ATTN_EXT_VEC_REDUCE + 0)]];
constant int32_t FC_flash_attn_ext_vec_reduce_NWG [[function_constant(FC_FLASH_ATTN_EXT_VEC_REDUCE + 1)]];
kernel void kernel_flash_attn_ext_vec_reduce(
constant ggml_metal_kargs_flash_attn_ext_vec_reduce & args,
device const char * htmp,
device char * dst,
uint tgpig[[threadgroup_position_in_grid]],
ushort tiisg[[thread_index_in_simdgroup]],
ushort sgitg[[simdgroup_index_in_threadgroup]]) {
#define NWG (FC_flash_attn_ext_vec_reduce_NWG)
#define DV (FC_flash_attn_ext_vec_reduce_DV)
const uint64_t rid = tgpig;
const short iwg = tiisg;
device const float * ss = (device const float *) htmp + (uint64_t)args.nrows*DV*NWG;
float S = ss[rid*(2*NWG) + 2*iwg + 0];
float M = ss[rid*(2*NWG) + 2*iwg + 1];
const float m = simd_max(M);
const float ms = exp(M - m);
S = simd_sum(S*ms);
S = S == 0.0f ? 0.0f : 1.0f/S;
const short DV4 = DV/4;
device const float4 * htmp4 = (device const float4 *) htmp + rid*DV4*NWG;
device float4 * dst4 = (device float4 *) dst + rid*DV4;
for (short i = sgitg; i < DV4; i += NWG) {
const float4 v = simd_sum(htmp4[i*NWG + iwg]*ms);
if (iwg == 0) {
dst4[i] = v*S;
}
}
#undef NWG
#undef DV
}
template<
typename kd4x4_t,
short nl_k,
void (*deq_k)(device const kd4x4_t *, short, thread half4x4 &)>
kernel void kernel_lightning_indexer(
constant ggml_metal_kargs_lightning_indexer & args,
device const char * q,
device const char * k,
device const char * w,
device const char * m,
device char * dst,
uint3 tgpig[[threadgroup_position_in_grid]],
ushort tiitg[[thread_index_in_threadgroup]],
ushort tiisg[[thread_index_in_simdgroup]],
ushort sgitg[[simdgroup_index_in_threadgroup]]) {
constexpr short DK = OP_LIGHTNING_INDEXER_DK;
constexpr short NH = OP_LIGHTNING_INDEXER_NH;
constexpr short NHPTG = OP_LIGHTNING_INDEXER_NHPTG;
constexpr short NKPSG = OP_LIGHTNING_INDEXER_NKPSG;
constexpr short NSG = OP_LIGHTNING_INDEXER_NSG;
constexpr short NBPTG = OP_LIGHTNING_INDEXER_NBPTG;
constexpr short DK4 = DK/4;
constexpr short DK8 = DK/8;
constexpr short DK16 = DK/16;
constexpr short NK = NKPSG*NSG; // keys per threadgroup
constexpr short NTG = 32*NSG; // threads per threadgroup
const int i_stream = tgpig.z;
const int i_kv_0 = tgpig.x*NK; // first key of this threadgroup
const int i_kv = i_kv_0 + sgitg*NKPSG; // first key of this simdgroup
threadgroup half sk[NK * DK16 * 16];
threadgroup half4x4 * sk4x4 = (threadgroup half4x4 *) sk;
for (short i = tiitg; i < NK*DK16; i += NTG) {
const short ik = i/DK16;
const short i16 = i%DK16;
half4x4 tmp;
if (i_kv_0 + ik < args.n_kv) {
device const kd4x4_t * kr = (device const kd4x4_t *) (k + (i_kv_0 + ik)*args.nbk2 + i_stream*args.nbk3);
deq_k(kr + i16/nl_k, i16%nl_k, tmp);
} else {
FOR_UNROLL (short j = 0; j < 4; ++j) {
tmp[j] = half4(0.0h);
}
}
sk4x4[i] = tmp;
}
threadgroup_barrier(mem_flags::mem_threadgroup);
// K tile of this simdgroup, transposed to [DK, NKPSG]
simdgroup_half8x8 mk[DK8];
FOR_UNROLL (short i = 0; i < DK8; ++i) {
simdgroup_load(mk[i], sk + sgitg*NKPSG*DK + 8*i, DK, 0, true);
}
threadgroup half4 sq4[NHPTG*DK4];
threadgroup half * sq = (threadgroup half *) sq4;
threadgroup float sw [NHPTG];
threadgroup float sqk[NSG*NHPTG*NKPSG];
const int i_batch_0 = tgpig.y*NBPTG;
const int n_batch = min((int) NBPTG, args.n_batch - i_batch_0);
for (short ib = 0; ib < n_batch; ++ib) {
const int i_batch = i_batch_0 + ib;
device const char * pq = q + i_batch*args.nbq2 + i_stream*args.nbq3;
device const char * pw = w + i_batch*args.nbw1 + i_stream*args.nbw3;
float score = 0.0f;
FOR_UNROLL (short i_head = 0; i_head < NH; i_head += NHPTG) {
// stage the Q tile [DK, NHPTG] and the (prescaled) head weights
for (short i = tiitg; i < NHPTG*DK4; i += NTG) {
const short ih = i/DK4;
const short i4 = i%DK4;
device const float4 * q4 = (device const float4 *) (pq + (i_head + ih)*args.nbq1);
sq4[ih*DK4 + i4] = half4(q4[i4]);
}
if (tiitg < NHPTG) {
sw[tiitg] = ((device const float *) pw)[i_head + tiitg];
}
threadgroup_barrier(mem_flags::mem_threadgroup);
simdgroup_float8x8 mqk = make_filled_simdgroup_matrix<float, 8>(0.0f);
FOR_UNROLL (short i = 0; i < DK8; ++i) {
simdgroup_half8x8 mq;
simdgroup_load(mq, sq + 8*i, DK, 0, false);
simdgroup_multiply_accumulate(mqk, mq, mk[i], mqk);
}
threadgroup float * pqk = sqk + sgitg*NHPTG*NKPSG;
simdgroup_store(mqk, pqk, NKPSG, 0, false);
simdgroup_barrier(mem_flags::mem_threadgroup);
// one lane per key: ReLU, apply the head weight and accumulate over the head tile
if (tiisg < NKPSG) {
FOR_UNROLL (short ih = 0; ih < NHPTG; ++ih) {
score += max(pqk[ih*NKPSG + tiisg], 0.0f)*sw[ih];
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
}
if (tiisg < NKPSG) {
const int ik = i_kv + tiisg;
if (ik < args.n_kv) {
device const half * pm = (device const half *) (m + i_batch*args.nbm1 + (i_stream % args.mask_ne3)*args.nbm3);
device float * pd = (device float *) (dst + i_batch*args.nb1 + i_stream*args.nb3);
pd[ik] = score + (float) pm[ik];
}
}
}
}
typedef decltype(kernel_lightning_indexer<half4x4, 1, dequantize_f16>) kernel_lightning_indexer_t;
template [[host_name("kernel_lightning_indexer_f32")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<float4x4, 1, dequantize_f32>;
template [[host_name("kernel_lightning_indexer_f16")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<half4x4, 1, dequantize_f16>;
#if defined(GGML_METAL_HAS_BF16)
template [[host_name("kernel_lightning_indexer_bf16")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<bfloat4x4, 1, dequantize_bf16>;
#endif
template [[host_name("kernel_lightning_indexer_q4_0")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<block_q4_0, 2, dequantize_q4_0>;
template [[host_name("kernel_lightning_indexer_q4_1")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<block_q4_1, 2, dequantize_q4_1>;
template [[host_name("kernel_lightning_indexer_q5_0")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<block_q5_0, 2, dequantize_q5_0>;
template [[host_name("kernel_lightning_indexer_q5_1")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<block_q5_1, 2, dequantize_q5_1>;
template [[host_name("kernel_lightning_indexer_q8_0")]] kernel kernel_lightning_indexer_t kernel_lightning_indexer<block_q8_0, 2, dequantize_q8_0>;