ikawrakow/ik_llama.cpp
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sanitize imatrix: q4_0_r8

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Iwan Kawrakow
2025-08-27 14:42:46 +03:00
parent 3ab0e41793
commit c5de02cffa
1 changed files with 6 additions and 2 deletions
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8
ggml/src/iqk/iqk_quantize.cpp
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@@ -4849,11 +4849,15 @@ static void modify_q4_0_r8(int64_t k, char * cy) {
size_t quantize_q4_0_r8(const float * src, void * dst, int64_t nrows, int64_t n_per_row, const float * imatrix) {
GGML_ASSERT(nrows%8 == 0);
auto row_size_nl = ggml_row_size(GGML_TYPE_IQ4_NL, n_per_row);
auto row_size_nl = ggml_row_size(GGML_TYPE_Q4_0, n_per_row);
std::vector<char> qtmp(8*row_size_nl);
QHelper helper(imatrix, n_per_row, 32);
auto q_func = [] (const float * x, void * vy, int n_per_row, const float * imatrix) {
quantize_q4_0(x, (char *)vy, 1, n_per_row, imatrix);
};
char * qrow = (char *)dst;
for (int row = 0; row < nrows; row += 8) {
quantize_q4_0(src, qtmp.data(), 8, n_per_row, imatrix);
helper.quantize(8, src, qtmp.data(), row_size_nl, q_func);
repack_q4_0(8, n_per_row, (const block_q4_0 *)qtmp.data(), (block_iq4_nl_r8 *)qrow, false);
src += 8*n_per_row;
qrow += 8*row_size_nl;