diff options
Diffstat (limited to 'ggml/src/iqk/iqk_quantize.cpp')
| -rw-r--r-- | ggml/src/iqk/iqk_quantize.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/ggml/src/iqk/iqk_quantize.cpp b/ggml/src/iqk/iqk_quantize.cpp index 0007dc04..874c6d55 100644 --- a/ggml/src/iqk/iqk_quantize.cpp +++ b/ggml/src/iqk/iqk_quantize.cpp @@ -3839,6 +3839,107 @@ void vec_dot_iq4_xs_r4_q8_k(int n, float * s, size_t bs, const void * vx, size_t } // +// ========================================= iq4_ks_r4 +// + +void quantize_row_iq4_ks_r4_ref(const float * x, block_iq4_ks_r4 * y, int64_t k) { + quantize_iq4_ks_r4(x, (void *)y, 4, k/4, nullptr); +} + +void quantize_row_iq4_ks_r4(const float * x, void * y, int64_t k) { + quantize_iq4_ks_r4(x, y, 4, k/4, nullptr); +} + +static void repack_iq4_ks(int nrows, int n_per_row, const block_iq4_ks * x, block_iq4_ks_r4 * y) { + GGML_ASSERT(nrows%4 == 0); + GGML_ASSERT(n_per_row%QK_K == 0); + auto row_size = ggml_row_size(GGML_TYPE_IQ4_KS, n_per_row); + int nblock = n_per_row/QK_K; + char * cy = (char *)y; + const char * cx = (const char *)x; + const block_iq4_ks * x4[4]; + for (int row = 0; row < nrows; row += 4) { + float * dptr = (float *)cy; + block_iq4_ks_r4 * y = (block_iq4_ks_r4 *)(dptr + 4); + for (int k = 0; k < 4; ++k) { + auto dk = (const float *)(cx + k*row_size); + dptr[k] = dk[0]; + x4[k] = (const block_iq4_ks *)(dk + 1); + } + for (int ibl = 0; ibl < nblock; ++ibl) { + for (int k = 0; k < 4; ++k) { + for (int ib = 0; ib < QK_K/32; ++ib) { + y[ibl].scales[4*ib+k] = x4[k][ibl].scales[ib]; + for (int i = 0; i < 4; ++i) { + y[ibl].qs[64*ib+4*k+i+ 0] = (x4[k][ibl].qs[16*ib+i+0] & 0xf) | ((x4[k][ibl].qs[16*ib+i+ 8] & 0x0f) << 4); // 0....3 + 8...11 from each row + y[ibl].qs[64*ib+4*k+i+16] = (x4[k][ibl].qs[16*ib+i+0] >> 4) | ((x4[k][ibl].qs[16*ib+i+ 8] & 0xf0)); // 16...19 + 24...27 from each row + y[ibl].qs[64*ib+4*k+i+32] = (x4[k][ibl].qs[16*ib+i+4] & 0xf) | ((x4[k][ibl].qs[16*ib+i+12] & 0x0f) << 4); // 4....7 + 12...15 from each row + y[ibl].qs[64*ib+4*k+i+48] = (x4[k][ibl].qs[16*ib+i+4] >> 4) | ((x4[k][ibl].qs[16*ib+i+12] & 0xf0)); // 20...23 + 28...31 from each row + } + } + } + } + cx += 4*row_size; + cy += 4*row_size; + } +} + +size_t quantize_iq4_ks_r4(const float * src, void * dst, int64_t nrows, int64_t n_per_row, const float * imatrix) { + GGML_ASSERT(nrows%4 == 0); + GGML_ASSERT(n_per_row%QK_K == 0); + char * qcur = (char *)dst; + auto row_size = ggml_row_size(GGML_TYPE_IQ4_KS, n_per_row); + std::vector<char> qtmp(4*row_size); + for (int row = 0; row < nrows; row += 4) { + quantize_iq4_ks(src, (void *)qtmp.data(), 4, n_per_row, imatrix); + repack_iq4_ks(4, n_per_row, (const block_iq4_ks *)qtmp.data(), (block_iq4_ks_r4 *)qcur); + qcur += 4*row_size; + src += 4*n_per_row; + } + return nrows*row_size; +} + +void dequantize_row_iq4_ks_r4(const block_iq4_ks_r4 * x, float * y, int64_t k) { + auto n_per_row = k/4; + float * y4[4] = {y, y + n_per_row, y + 2*n_per_row, y + 3*n_per_row}; + int nblock = n_per_row/QK_K; + const float * dptr = (const float *)x; + x = (const block_iq4_ks_r4 *)(dptr + 4); + for (int ibl = 0; ibl < nblock; ++ibl) { + for (int k = 0; k < 4; ++k) { + const float d = dptr[k]; + for (int ib = 0; ib < QK_K/32; ++ib) { + float dl = d * ((x[ibl].scales[4*ib + k] & 254) - 127); + auto values = iq4k_values + ((x[ibl].scales[4*ib + k] & 1) << 4); + for (int i = 0; i < 4; ++i) { + y4[k][QK_K*ibl+32*ib+i+ 0] = dl * values[x[ibl].qs[64*ib+4*k+i+ 0] & 0xf]; + y4[k][QK_K*ibl+32*ib+i+ 8] = dl * values[x[ibl].qs[64*ib+4*k+i+ 0] >> 4]; + y4[k][QK_K*ibl+32*ib+i+16] = dl * values[x[ibl].qs[64*ib+4*k+i+16] & 0xf]; + y4[k][QK_K*ibl+32*ib+i+24] = dl * values[x[ibl].qs[64*ib+4*k+i+16] >> 4]; + y4[k][QK_K*ibl+32*ib+i+ 4] = dl * values[x[ibl].qs[64*ib+4*k+i+32] & 0xf]; + y4[k][QK_K*ibl+32*ib+i+12] = dl * values[x[ibl].qs[64*ib+4*k+i+32] >> 4]; + y4[k][QK_K*ibl+32*ib+i+20] = dl * values[x[ibl].qs[64*ib+4*k+i+48] & 0xf]; + y4[k][QK_K*ibl+32*ib+i+28] = dl * values[x[ibl].qs[64*ib+4*k+i+48] >> 4]; + } + } + } + } +} + +void vec_dot_iq4_ks_r4_q8_k(int n, float * s, size_t bs, const void * vx, size_t bx, const void * vy, size_t by, int nrc) { +#if GGML_USE_IQK_MULMAT + if (iqk_mul_mat(1, 1, n, GGML_TYPE_IQ4_KS_R4, vx, 0, GGML_TYPE_Q8_K, vy, 0, s, 0, 0, 1)) { + return; + } +#endif + GGML_ASSERT(n%QK4_NL == 0); + GGML_ASSERT(nrc == 1); + GGML_UNUSED(bs); + GGML_UNUSED(bx); + GGML_UNUSED(by); +} + +// // ========================================= iq2_bn_r4 // void quantize_row_iq2_bn_r4_ref(const float * x, block_iq2_bn * y, int64_t k) { |