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Nomic Vulkan backend (#4456)

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Signed-off-by: Jared Van Bortel <jared@nomic.ai>
Co-authored-by: niansa <anton-sa@web.de>
Co-authored-by: Adam Treat <treat.adam@gmail.com>
Co-authored-by: Aaron Miller <apage43@ninjawhale.com>
Co-authored-by: ToKiNoBug <tokinobug@163.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
Co-authored-by: slaren <slarengh@gmail.com>
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Jared Van Bortel 2024-01-29 15:50:50 -05:00 • committed by GitHub
parent 2aed77eb06
commit fbf1ddec69
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45 changed files with 4271 additions and 19 deletions
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kompute-shaders/op_mul_mat_q8_0.comp Normal file
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#version 450
#include "common.comp"
#include "op_mul_mv_q_n_pre.comp"
#define SIZE_OF_D 2
#define N_DST 4 // each SIMD group works on 4 rows
#define N_SIMDGROUP 2 // number of SIMD groups in a thread group
#define N_SIMDWIDTH 32 // assuming SIMD group size is 32
#define NB_Q8_0 8
void main() {
// NB: hack to make compatible with AMD GPUs that have a subgroup size of 64
if (gl_SubgroupInvocationID > 31)
return;
const int nr = N_DST;
const int nsg = N_SIMDGROUP;
const int nw = N_SIMDWIDTH;
const int nb = pcs.ne00/QK8_0;
const uint r0 = gl_WorkGroupID.x;
const uint r1 = gl_WorkGroupID.y;
const uint im = gl_WorkGroupID.z;
const uint first_row = (r0 * nsg + gl_SubgroupID) * nr;
const uint i12 = im%pcs.ne12;
const uint i13 = im/pcs.ne12;
const uint offset0 = first_row * nb + (i12/pcs.r2)*(nb*pcs.ne01) + (i13/pcs.r3)*(nb*pcs.ne01*pcs.ne02);
const uint x = offset0*sizeof_block_q8_0 + pcs.inAOff; // Based from inA
const uint y = r1*pcs.ne10 + im*pcs.ne00*pcs.ne1 + pcs.inBOff; // based from inB
float yl[NB_Q8_0];
float sumf[N_DST]={0.f, 0.f, 0.f, 0.f};
const uint ix = gl_SubgroupInvocationID.x/4;
const uint il = gl_SubgroupInvocationID.x%4;
uint yb = y + ix * QK8_0 + NB_Q8_0*il;
// each thread in a SIMD group deals with NB_Q8_0 quants at a time
for (uint ib = ix; ib < nb; ib += nw/4) {
for (int i = 0; i < NB_Q8_0; ++i) {
yl[i] = inB[yb + i];
}
for (int row = 0; row < nr; row++) {
const uint block_offset = (ib+row*nb) * sizeof_block_q8_0;
float sumq = 0.f;
for (int iq = 0; iq < NB_Q8_0; ++iq) {
const int8_t qs_iq = int8_t(inA[x + block_offset + SIZE_OF_D + NB_Q8_0*il + iq]);
sumq += qs_iq * yl[iq];
}
const float16_t d = u8BufToFloat16(inA, x + block_offset);
sumf[row] += sumq*d;
}
yb += NB_Q8_0 * nw;
}
for (int row = 0; row < nr; ++row) {
const float tot = subgroupAdd(sumf[row]);
if (subgroupElect() && first_row + row < pcs.ne01) {
out_[r1*pcs.ne0 + im*pcs.ne0*pcs.ne1 + first_row + row] = tot;
}
}
}