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Make quantize_row_iq4_nl do the same thing is quantization on CUDA

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Iwan Kawrakow 2024-03-21 10:37:38 +02:00
parent 76aa30a263
commit cd4a7c4cb4
1 changed files with 19 additions and 8 deletions
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27
ggml-quants.c
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@ -11705,9 +11705,8 @@ static void quantize_row_iq4_nl_impl(const int super_block_size, const int block
ggml_fp16_t * dh, uint8_t * q4, uint16_t * scales_h, uint8_t * scales_l,
float * scales, float * weight, uint8_t * L,
const int8_t * values,
const float * quant_weights) {
const int ntry = 7;
const float * quant_weights,
const int ntry) {
float sigma2 = 0;
for (int j = 0; j < super_block_size; ++j) sigma2 += x[j]*x[j];
@ -11823,7 +11822,7 @@ size_t quantize_iq4_nl(const float * restrict src, void * restrict dst, int nrow
for (int ibl = 0; ibl < nblock; ++ibl) {
const float * qw = quant_weights ? quant_weights + QK4_NL*ibl : NULL;
quantize_row_iq4_nl_impl(QK4_NL, 32, src + QK4_NL*ibl, &iq4[ibl].d, iq4[ibl].qs, &unused_h, unused_l,
&scale, weight, L, kvalues_iq4nl, qw);
&scale, weight, L, kvalues_iq4nl, qw, 7);
}
src += n_per_row;
qrow += nblock*sizeof(block_iq4_nl);
@ -11832,9 +11831,21 @@ size_t quantize_iq4_nl(const float * restrict src, void * restrict dst, int nrow
}
void quantize_row_iq4_nl(const float * restrict x, void * restrict vy, int k) {
assert(k % QK4_NL == 0);
block_iq4_nl * restrict y = vy;
quantize_row_iq4_nl_reference(x, y, k);
GGML_ASSERT(k%QK4_NL == 0);
int nblock = k/QK4_NL;
uint8_t L[QK4_NL];
float weight[QK4_NL];
uint16_t unused_h;
uint8_t * unused_l = NULL;
float scale;
block_iq4_nl * iq4 = (block_iq4_nl *)vy;
for (int ibl = 0; ibl < nblock; ++ibl) {
quantize_row_iq4_nl_impl(QK4_NL, 32, x + QK4_NL*ibl, &iq4[ibl].d, iq4[ibl].qs, &unused_h, unused_l,
&scale, weight, L, kvalues_iq4nl, NULL, -1);
}
//assert(k % QK4_NL == 0);
//block_iq4_nl * restrict y = vy;
//quantize_row_iq4_nl_reference(x, y, k);
}
void quantize_row_iq4_nl_reference(const float * restrict x, block_iq4_nl * restrict y, int k) {
@ -11857,7 +11868,7 @@ size_t quantize_iq4_xs(const float * restrict src, void * restrict dst, int nrow
for (int ibl = 0; ibl < nblock; ++ibl) {
const float * qw = quant_weights ? quant_weights + QK_K*ibl : NULL;
quantize_row_iq4_nl_impl(QK_K, 32, src + QK_K*ibl, &iq4[ibl].d, iq4[ibl].qs, &iq4[ibl].scales_h, iq4[ibl].scales_l,
scales, weight, L, kvalues_iq4nl, qw);
scales, weight, L, kvalues_iq4nl, qw, 7);
}
src += n_per_row;
qrow += nblock*sizeof(block_iq4_xs);