ikawrakow/ik_llama.cpp
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sanitize imatrix: iq4_ks

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Iwan Kawrakow
2025-08-27 13:58:54 +03:00
parent b6f1bd68bb
commit a6ecc679a2
1 changed files with 6 additions and 8 deletions
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14
ggml/src/iqk/iqk_quantize.cpp
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@@ -4047,18 +4047,16 @@ void quantize_row_iq4_ks(const float * x, void * y, int64_t k) {
}
size_t quantize_iq4_ks(const float * src, void * dst, int64_t nrows, int64_t n_per_row, const float * imatrix) {
//printf("============ %s(%d, %d)\n", __func__, int(nrows), int(n_per_row));
constexpr int kBlockSize = 32; //128;
constexpr int kBlockSize = 32;
GGML_ASSERT(n_per_row%QK_K == 0);
auto row_size = ggml_row_size(GGML_TYPE_IQ4_KS, n_per_row);
char * qrow = (char *)dst;
float weight[kBlockSize];
std::vector<float> all_scales(n_per_row/kBlockSize);
for (int64_t row = 0; row < nrows; ++row) {
quantize_row_iq4_k_impl_bs128(QK_K, kBlockSize, n_per_row, src, qrow, all_scales.data(), weight, iq4k_values, imatrix, 7);
src += n_per_row;
qrow += row_size;
}
QHelper helper(imatrix, n_per_row, kBlockSize);
auto q_func = [&all_scales, &weight, block_size = kBlockSize] (const float * x, void * vy, int n_per_row, const float * imatrix) {
quantize_row_iq4_k_impl_bs128(QK_K, block_size, n_per_row, x, (char *)vy, all_scales.data(), weight, iq4k_values, imatrix, 7);
};
helper.quantize(nrows, src, dst, row_size, q_func);
return nrows * row_size;
}