vbatts/llama.cpp
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make_qkx2_quants is better for Q5_K after all

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Iwan Kawrakow 2023-08-22 08:45:28 +03:00
parent e2af308cc7
commit b7063393d8
1 changed files with 8 additions and 8 deletions
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16
k_quants.c
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@ -847,8 +847,8 @@ void quantize_row_q5_K_reference(const float * restrict x, block_q5_K * restrict
uint8_t L[QK_K];
float mins[QK_K/32];
float scales[QK_K/32];
//float weights[32];
//uint8_t Laux[32];
float weights[32];
uint8_t Laux[32];
#else
int8_t L[QK_K];
float scales[QK_K/16];
@ -861,12 +861,12 @@ void quantize_row_q5_K_reference(const float * restrict x, block_q5_K * restrict
float max_scale = 0; // as we are deducting the min, scales are always positive
float max_min = 0;
for (int j = 0; j < QK_K/32; ++j) {
scales[j] = make_qkx1_quants(32, 31, x + 32*j, L + 32*j, &mins[j], 9, 0.5f);
//float sum_x2 = 0;
//for (int l = 0; l < 32; ++l) sum_x2 += x[32*j + l] * x[32*j + l];
//float av_x = sqrtf(sum_x2/32);
//for (int l = 0; l < 32; ++l) weights[l] = av_x + fabsf(x[32*j + l]);
//scales[j] = make_qkx2_quants(32, 31, x + 32*j, weights, L + 32*j, &mins[j], Laux, -0.5f, 0.1f, 15, false);
//scales[j] = make_qkx1_quants(32, 31, x + 32*j, L + 32*j, &mins[j], 9, 0.5f);
float sum_x2 = 0;
for (int l = 0; l < 32; ++l) sum_x2 += x[32*j + l] * x[32*j + l];
float av_x = sqrtf(sum_x2/32);
for (int l = 0; l < 32; ++l) weights[l] = av_x + fabsf(x[32*j + l]);
scales[j] = make_qkx2_quants(32, 31, x + 32*j, weights, L + 32*j, &mins[j], Laux, -0.5f, 0.1f, 15, false);
float scale = scales[j];
if (scale > max_scale) {
max_scale = scale;