diff options
Diffstat (limited to 'ggml/src/iqk/iqk_quantize.cpp')
| -rw-r--r-- | ggml/src/iqk/iqk_quantize.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/ggml/src/iqk/iqk_quantize.cpp b/ggml/src/iqk/iqk_quantize.cpp index 2e59fefe..49e2cf8e 100644 --- a/ggml/src/iqk/iqk_quantize.cpp +++ b/ggml/src/iqk/iqk_quantize.cpp @@ -4437,3 +4437,118 @@ void vec_dot_q3_k_r4_q8_k(int n, float * s, size_t bs, const void * vx, size_t b GGML_UNUSED(by); } +// +// ========================================= q2_k_r4 +// + +void quantize_row_q2_k_r4_ref(const float * x, block_q2_k_r4 * y, int64_t k) { + quantize_q3_k_r4(x, (void *)y, 4, k/4, nullptr); +} + +void quantize_row_q2_k_r4(const float * x, void * y, int64_t k) { + quantize_q2_k_r4(x, y, 4, k/4, nullptr); +} + +namespace { +inline void convert_q2_k(const block_q2_K& x, uint8_t * L) { + + const uint8_t * qs = x.qs; + for (int n = 0; n < QK_K; n += 128) { + for (int j = 0; j < 32; ++j) { + L[n + j + 0] = (qs[j] >> 0) & 0x3; + L[n + j + 32] = (qs[j] >> 2) & 0x3; + L[n + j + 64] = (qs[j] >> 4) & 0x3; + L[n + j + 96] = (qs[j] >> 6) & 0x3; + } + qs += 32; + } +} +} + +static void repack_q2_k(int nrows, int n_per_row, const block_q2_K * x, block_q2_k_r4 * y) { + GGML_ASSERT(nrows%4 == 0); + GGML_ASSERT(n_per_row%QK_K == 0); + int nblock = n_per_row/QK_K; + const block_q2_K * x4[4]; + uint8_t L[QK_K]; + for (int row = 0; row < nrows; row += 4) { + for (int k = 0; k < 4; ++k) x4[k] = x + nblock*k; + for (int ibl = 0; ibl < nblock; ++ibl) { + for (int k = 0; k < 4; ++k) { + y[ibl].d[k+0] = x4[k][ibl].d; + y[ibl].d[k+4] = x4[k][ibl].dmin; + for (int ib = 0; ib < QK_K/16; ++ib) { + y[ibl].scales[4*ib+k] = x4[k][ibl].scales[ib]; + } + convert_q2_k(x4[k][ibl], L); + for (int ib = 0; ib < QK_K/32; ++ib) { + for (int i = 0; i < 4; ++i) { + y[ibl].qs[32*ib+4*k+i+ 0] = ((L[32*ib+i+ 0] & 0x3) << 0) | ((L[32*ib+i+ 4] & 0x3) << 2) | ((L[32*ib+i+ 8] & 0x3) << 4) | ((L[32*ib+i+12] & 0x3) << 6); + y[ibl].qs[32*ib+4*k+i+16] = ((L[32*ib+i+16] & 0x3) << 0) | ((L[32*ib+i+20] & 0x3) << 2) | ((L[32*ib+i+24] & 0x3) << 4) | ((L[32*ib+i+28] & 0x3) << 6); + } + } + } + } + x += 4*nblock; + y += nblock; + } +} + +size_t quantize_q2_k_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_Q2_K, n_per_row); + std::vector<char> qtmp(4*row_size); + for (int row = 0; row < nrows; row += 4) { + quantize_q2_K(src, (void *)qtmp.data(), 4, n_per_row, imatrix); + repack_q2_k(4, n_per_row, (const block_q2_K *)qtmp.data(), (block_q2_k_r4 *)qcur); + qcur += 4*row_size; + src += 4*n_per_row; + } + return nrows*row_size; +} + +void dequantize_row_q2_k_r4(const block_q2_k_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; + for (int ibl = 0; ibl < nblock; ++ibl) { + for (int k = 0; k < 4; ++k) { + const float d = GGML_FP16_TO_FP32(x[ibl].d[k+0]); + const float m = GGML_FP16_TO_FP32(x[ibl].d[k+4]); + auto ql = x[ibl].qs; + for (int ib = 0; ib < QK_K/32; ++ib) { + float dl1 = d * (x[ibl].scales[8*ib + k + 0] & 0xf); + float ml1 = m * (x[ibl].scales[8*ib + k + 0] >> 4); + float dl2 = d * (x[ibl].scales[8*ib + k + 4] & 0xf); + float ml2 = m * (x[ibl].scales[8*ib + k + 4] >> 4); + for (int i = 0; i < 4; ++i) { + y4[k][QK_K*ibl+32*ib+i+ 0] = dl1 * ((ql[4*k+i+ 0] >> 0) & 3) - ml1; + y4[k][QK_K*ibl+32*ib+i+ 4] = dl1 * ((ql[4*k+i+ 0] >> 2) & 3) - ml1; + y4[k][QK_K*ibl+32*ib+i+ 8] = dl1 * ((ql[4*k+i+ 0] >> 4) & 3) - ml1; + y4[k][QK_K*ibl+32*ib+i+12] = dl1 * ((ql[4*k+i+ 0] >> 6) & 3) - ml1; + y4[k][QK_K*ibl+32*ib+i+16] = dl2 * ((ql[4*k+i+16] >> 0) & 3) - ml2; + y4[k][QK_K*ibl+32*ib+i+20] = dl2 * ((ql[4*k+i+16] >> 2) & 3) - ml2; + y4[k][QK_K*ibl+32*ib+i+24] = dl2 * ((ql[4*k+i+16] >> 4) & 3) - ml2; + y4[k][QK_K*ibl+32*ib+i+28] = dl2 * ((ql[4*k+i+16] >> 6) & 3) - ml2; + } + ql += 32; + } + } + } +} + +void vec_dot_q2_k_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_Q2_K_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); +} + |