diff options
Diffstat (limited to 'ggml.c')
-rw-r--r-- | ggml.c | 12 |
1 files changed, 10 insertions, 2 deletions
@@ -468,6 +468,14 @@ static inline int hsum_i32_8(const __m256i a) { return _mm_cvtsi128_si32(_mm_add_epi32(sum64, hi32)); } +// horizontally add 4 int32_t +static inline int hsum_i32_4(const __m128i a) { + const __m128i hi64 = _mm_unpackhi_epi64(a, a); + const __m128i sum64 = _mm_add_epi32(hi64, a); + const __m128i hi32 = _mm_shuffle_epi32(sum64, _MM_SHUFFLE(2, 3, 0, 1)); + return _mm_cvtsi128_si32(_mm_add_epi32(sum64, hi32)); +} + #if __AVX2__ || __AVX512F__ // Unpack 32 4-bit fields into 32 bytes // The output vector contains 32 bytes, each one in [ 0 .. 15 ] interval @@ -1381,7 +1389,6 @@ static void quantize_row_q8_0(const float * restrict x, void * restrict vy, int y[i].s1 = d * sum1; } #elif defined(__AVX2__) || defined(__AVX__) - // TODO !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! for (int i = 0; i < nb; i++) { // Load elements into 4 AVX vectors __m256 v0 = _mm256_loadu_ps( x ); @@ -1460,7 +1467,8 @@ static void quantize_row_q8_0(const float * restrict x, void * restrict vy, int // Compute the sum of the quants and set y[i].s const __m128i s0 = _mm_add_epi32(_mm_add_epi32(ni0, ni1), _mm_add_epi32(ni2, ni3)); const __m128i s1 = _mm_add_epi32(_mm_add_epi32(ni4, ni5), _mm_add_epi32(ni6, ni7)); - y[i].s = d * hsum_i32_8(_mm256_set_m128i(s1, s0)); + y[i].s0 = d * hsum_i32_4(s0); + y[i].s1 = d * hsum_i32_4(s1); // Convert int32 to int16 ni0 = _mm_packs_epi32( ni0, ni1 ); |