Transformer architecture implemented in TypeScript with WebGPU.
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nn/shader/center.wgsl

24 lines
592 B

struct MatrixBatch {
size: vec4<u32>,
data: array<vec4<f32>>,
}
@group(0) @binding(0)
var<storage, read> m: MatrixBatch;
@group(0) @binding(1)
var<storage, read_write> centered: MatrixBatch;
@compute @workgroup_size(1)
fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
centered.size = m.size;
let vc = m.size.x / 4;
let ro = (global_id.z * m.size.y + global_id.y) * vc;
var s = vec4(0f);
for (var x = 0u; x < vc; x++) {
s += m.data[ro + x];
}
centered.data[ro + global_id.x] = m.data[ro + global_id.x] - vec4(s.x + s.y + s.z + s.w) / f32(m.size.x);
}