This commit is contained in:
Eve 2024-11-21 11:27:18 -05:00
parent 3c3543ab56
commit be5295bd51

View file

@ -1,5 +1,7 @@
#version 450
#extension GL_KHR_shader_subgroup_arithmetic: enable
#ifdef FLOAT16
#extension GL_EXT_shader_explicit_arithmetic_types_float16 : require
#endif
@ -10,8 +12,6 @@ layout(local_size_x_id = 0, local_size_y = 1, local_size_z = 1) in;
layout (constant_id = 0) const uint BLOCK_SIZE = 32;
shared FLOAT_TYPE tmp[BLOCK_SIZE];
void main() {
const uint row = gl_WorkGroupID.x + gl_NumWorkGroups.x * gl_WorkGroupID.z;
const uint tid = gl_LocalInvocationID.x;
@ -28,7 +28,7 @@ void main() {
const uint y_offset = QUANT_R == 1 ? 1 : QUANT_K/2;
tmp[tid] = FLOAT_TYPE(0.0f);
FLOAT_TYPE tmp = FLOAT_TYPE(0.0f);
[[unroll]] for (uint i = 0; i < p.ncols/block_size; i += 2) {
const uint col = i*block_size + 2*tid;
@ -39,18 +39,11 @@ void main() {
vec2 v = dequantize(ib, iqs, a_offset / QUANT_K);
// matrix multiplication
tmp[tid] = fma(FLOAT_TYPE(v.x), FLOAT_TYPE(data_b[b_offset + iybs + iqs]), fma(FLOAT_TYPE(v.y), FLOAT_TYPE(data_b[b_offset + iybs + iqs + y_offset]), tmp[tid]));
tmp = fma(FLOAT_TYPE(v.x), FLOAT_TYPE(data_b[b_offset + iybs + iqs]), fma(FLOAT_TYPE(v.y), FLOAT_TYPE(data_b[b_offset + iybs + iqs + y_offset]), tmp));
}
// sum up partial sums and write back result
barrier();
[[unroll]] for (uint s = block_size/2; s > 0; s >>= 1) {
if (tid < s) {
tmp[tid] += tmp[tid + s];
}
barrier();
}
if (tid == 0) {
data_d[d_offset + row] = D_TYPE(tmp[0]);
}
tmp = subgroupAdd(tmp);
if (tid == 0)
data_d[d_offset + row] = D_TYPE(tmp);
}