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use super::*;
#[cfg(feature = "dtype-f32")]
/// Causal left-window attention.
///
/// For query absolute position `q_abs`, only keys satisfying `key_abs <= q_abs` and `key_abs + window > q_abs` are visible.
/// KV heads are mapped with contiguous grouped-query attention semantics.
pub fn sliding_window_attention_f32(
stream: &Arc<Stream>,
out: DevicePointer<f32>,
query: DevicePointer<f32>,
key: DevicePointer<f32>,
value: DevicePointer<f32>,
batch: usize,
query_len: usize,
key_len: usize,
heads: usize,
kv_heads: usize,
head_dim: usize,
query_start: usize,
key_start: usize,
window: usize,
query_batch_stride: usize,
key_batch_stride: usize,
value_batch_stride: usize,
output_batch_stride: usize,
query_sequence_stride: usize,
key_sequence_stride: usize,
value_sequence_stride: usize,
output_sequence_stride: usize,
query_head_stride: usize,
key_head_stride: usize,
value_head_stride: usize,
output_head_stride: usize,
scale: f32,
output_scale: f32,
) -> Result<()> {
checked_device_pointer(out)?;
checked_device_pointer(query)?;
checked_device_pointer(key)?;
checked_device_pointer(value)?;
let params = SlidingWindowAttention::create(
batch,
query_len,
key_len,
heads,
kv_heads,
head_dim,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
)?;
let SlidingWindowAttention {
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
output_len: output_len_i32,
output_values_per_batch,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
grid,
} = params;
match (head_dim, window) {
(32, 128) => unsafe {
kernel_attention::sliding_window_attention_f32_hd32_w128(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(64, 750) => unsafe {
kernel_attention::sliding_window_attention_f32_hd64_w750(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(64, 1024) => unsafe {
kernel_attention::sliding_window_attention_f32_hd64_w1024(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(4, _) => unsafe {
kernel_attention::sliding_window_attention_f32_hd4(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(8, _) => unsafe {
kernel_attention::sliding_window_attention_f32_hd8(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(16, _) => unsafe {
kernel_attention::sliding_window_attention_f32_hd16(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(32, _) => unsafe {
kernel_attention::sliding_window_attention_f32_hd32(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
(64, _) => unsafe {
kernel_attention::sliding_window_attention_f32_hd64(
out,
query,
key,
value,
batch,
query_len,
key_len,
heads,
kv_heads,
query_start,
key_start,
window,
query_batch_stride,
key_batch_stride,
value_batch_stride,
output_batch_stride,
query_sequence_stride,
key_sequence_stride,
value_sequence_stride,
output_sequence_stride,
query_head_stride,
key_head_stride,
value_head_stride,
output_head_stride,
scale,
output_scale,
output_len_i32,
output_values_per_batch,
)
}
.grid(grid)
.enqueue_on(stream)?,
_ => {
return Err(Error::UnsupportedWidth {
op: "sliding_window_attention_f32 head_dim".into(),
width: head_dim,
});
}
};
Ok(())
}