runmat-accelerate 0.4.4

Pluggable GPU acceleration layer for RunMat (CUDA, ROCm, Metal, Vulkan/Spir-V)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

pub const REPMAT_SHADER_F64: &str = r#"
const MAX_RANK: u32 = 128u;

struct PackedValue {
    value: u32,
    _pad0: u32,
    _pad1: u32,
    _pad2: u32,
};

alias PackedArray = array<PackedValue, MAX_RANK>;

struct Tensor {
    data: array<f64>,
};

struct Params {
    len: u32,
    offset: u32,
    rank: u32,
    _pad: u32,
    base_shape: PackedArray,
    new_shape: PackedArray,
    base_strides: PackedArray,
};

@group(0) @binding(0) var<storage, read> Input: Tensor;
@group(0) @binding(1) var<storage, read_write> Output: Tensor;
@group(0) @binding(2) var<uniform> params: Params;

@compute @workgroup_size(@WG@)
fn main(@builtin(global_invocation_id) gid: vec3<u32>) {
    let idx = gid.x;
    if idx >= params.len {
        return;
    }
    let global_index = params.offset + idx;

    var remaining = global_index;
    var src_index: u32 = 0u;
    var dim: u32 = 0u;

    loop {
        if dim >= params.rank {
            break;
        }
        let size = params.new_shape[dim].value;
        var coord: u32 = 0u;
        if size != 0u {
            coord = remaining % size;
            remaining = remaining / size;
        }
        let base = params.base_shape[dim].value;
        var orig_coord: u32 = 0u;
        if base != 0u {
            orig_coord = coord % base;
        }
        let stride = params.base_strides[dim].value;
        src_index = src_index + orig_coord * stride;
        dim = dim + 1u;
    }

    Output.data[global_index] = Input.data[src_index];
}
"#;

pub const REPMAT_SHADER_F32: &str = r#"
const MAX_RANK: u32 = 128u;

struct PackedValue {
    value: u32,
    _pad0: u32,
    _pad1: u32,
    _pad2: u32,
};

alias PackedArray = array<PackedValue, MAX_RANK>;

struct Tensor {
    data: array<f32>,
};

struct Params {
    len: u32,
    offset: u32,
    rank: u32,
    _pad: u32,
    base_shape: PackedArray,
    new_shape: PackedArray,
    base_strides: PackedArray,
};

@group(0) @binding(0) var<storage, read> Input: Tensor;
@group(0) @binding(1) var<storage, read_write> Output: Tensor;
@group(0) @binding(2) var<uniform> params: Params;

@compute @workgroup_size(@WG@)
fn main(@builtin(global_invocation_id) gid: vec3<u32>) {
    let idx = gid.x;
    if idx >= params.len {
        return;
    }
    let global_index = params.offset + idx;

    var remaining = global_index;
    var src_index: u32 = 0u;
    var dim: u32 = 0u;

    loop {
        if dim >= params.rank {
            break;
        }
        let size = params.new_shape[dim].value;
        var coord: u32 = 0u;
        if size != 0u {
            coord = remaining % size;
            remaining = remaining / size;
        }
        let base = params.base_shape[dim].value;
        var orig_coord: u32 = 0u;
        if base != 0u {
            orig_coord = coord % base;
        }
        let stride = params.base_strides[dim].value;
        src_index = src_index + orig_coord * stride;
        dim = dim + 1u;
    }

    Output.data[global_index] = Input.data[src_index];
}
"#;