align to 64, using SSE when input size is small
This commit is contained in:
Gengxin Xie
parent
448152cdd8
commit
1b0f17eeed
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@ -1,7 +1,8 @@
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#include "common.h"
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#include <math.h>
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#define ABS fabs
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#ifndef ABS_K
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#define ABS_K(a) ((a) > 0 ? (a) : (-(a)))
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#endif
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#if defined(SKYLAKEX)
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#include "dasum_microk_skylakex-2.c"
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@ -9,11 +10,12 @@
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#include "dasum_microk_haswell-2.c"
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#endif
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#ifndef HAVE_KERNEL_16
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static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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#ifndef HAVE_DASUM_KERNEL
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static FLOAT dasum_kernel(BLASLONG n, FLOAT *x1)
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{
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BLASLONG i=0;
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BLASLONG n_8 = n & -8;
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FLOAT *x = x1;
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FLOAT temp0, temp1, temp2, temp3;
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FLOAT temp4, temp5, temp6, temp7;
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@ -21,18 +23,17 @@ static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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FLOAT sum1 = 0.0;
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FLOAT sum2 = 0.0;
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FLOAT sum3 = 0.0;
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FLOAT sum4 = 0.0;
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while ( i< n )
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{
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temp0 = ABS(x[0]);
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temp1 = ABS(x[1]);
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temp2 = ABS(x[2]);
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temp3 = ABS(x[3]);
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temp4 = ABS(x[4]);
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temp5 = ABS(x[5]);
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temp6 = ABS(x[6]);
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temp7 = ABS(x[7]);
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while (i < n_8) {
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temp0 = ABS_K(x[0]);
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temp1 = ABS_K(x[1]);
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temp2 = ABS_K(x[2]);
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temp3 = ABS_K(x[3]);
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temp4 = ABS_K(x[4]);
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temp5 = ABS_K(x[5]);
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temp6 = ABS_K(x[6]);
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temp7 = ABS_K(x[7]);
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sum0 += temp0;
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sum1 += temp1;
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@ -46,10 +47,14 @@ static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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x+=8;
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i+=8;
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}
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return sum0+sum1+sum2+sum3;
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while (i < n) {
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sum4 += ABS_K(x1[i]);
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i++;
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}
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return sum0+sum1+sum2+sum3+sum4;
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}
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#endif
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@ -58,38 +63,19 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
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{
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BLASLONG i=0;
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FLOAT sumf = 0.0;
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BLASLONG n1;
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if (n <= 0 || inc_x <= 0) return(sumf);
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if ( inc_x == 1 )
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{
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n1 = n & -16;
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if ( n1 > 0 )
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{
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sumf = dasum_kernel_16(n1, x);
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i=n1;
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if ( inc_x == 1 ) {
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sumf = dasum_kernel(n, x);
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}
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while(i < n)
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{
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sumf += ABS(x[i]);
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i++;
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}
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}
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else
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{
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else {
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n *= inc_x;
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while(i < n)
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{
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sumf += ABS(x[i]);
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while(i < n) {
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sumf += ABS_K(x[i]);
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i += inc_x;
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}
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}
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return(sumf);
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}
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@ -1,12 +1,34 @@
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#if (( defined(__GNUC__) && __GNUC__ > 6 ) || (defined(__clang__) && __clang_major__ >= 6)) && defined(__AVX2__)
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#define HAVE_KERNEL_16 1
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#define HAVE_DASUM_KERNEL
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#include <immintrin.h>
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#include <stdint.h>
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static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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#ifndef ABS_K
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#define ABS_K(a) ((a) > 0 ? (a) : (-(a)))
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#endif
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static FLOAT dasum_kernel(BLASLONG n, FLOAT *x1)
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{
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BLASLONG i = 0;
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FLOAT sumf = 0.0;
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if (n >= 256) {
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BLASLONG align_256 = ((32 - ((uintptr_t)x1 & (uintptr_t)0x1f)) >> 3) & 0x3;
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for (i = 0; i < align_256; i++) {
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sumf += ABS_K(x1[i]);
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}
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n -= align_256;
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x1 += align_256;
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}
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BLASLONG tail_index_SSE = n&(~7);
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BLASLONG tail_index_AVX2 = n&(~255);
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if (n >= 256) {
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__m256d accum_0, accum_1, accum_2, accum_3;
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accum_0 = _mm256_setzero_pd();
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@ -15,11 +37,11 @@ static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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accum_3 = _mm256_setzero_pd();
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__m256i abs_mask = _mm256_set1_epi64x(0x7fffffffffffffff);
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for (; i < n; i += 16) {
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accum_0 += (__m256d)_mm256_and_si256(_mm256_loadu_si256(&x1[i+ 0]), abs_mask);
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accum_1 += (__m256d)_mm256_and_si256(_mm256_loadu_si256(&x1[i+ 4]), abs_mask);
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accum_2 += (__m256d)_mm256_and_si256(_mm256_loadu_si256(&x1[i+ 8]), abs_mask);
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accum_3 += (__m256d)_mm256_and_si256(_mm256_loadu_si256(&x1[i+12]), abs_mask);
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for (i = 0; i < tail_index_AVX2; i += 16) {
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accum_0 += (__m256d)_mm256_and_si256(_mm256_load_si256(&x1[i+ 0]), abs_mask);
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accum_1 += (__m256d)_mm256_and_si256(_mm256_load_si256(&x1[i+ 4]), abs_mask);
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accum_2 += (__m256d)_mm256_and_si256(_mm256_load_si256(&x1[i+ 8]), abs_mask);
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accum_3 += (__m256d)_mm256_and_si256(_mm256_load_si256(&x1[i+12]), abs_mask);
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}
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accum_0 = accum_0 + accum_1 + accum_2 + accum_3;
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@ -29,7 +51,36 @@ static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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half_accum0 = _mm_hadd_pd(half_accum0, half_accum0);
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return half_accum0[0];
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sumf += half_accum0[0];
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}
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if (n >= 8) {
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__m128d accum_20, accum_21, accum_22, accum_23;
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accum_20 = _mm_setzero_pd();
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accum_21 = _mm_setzero_pd();
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accum_22 = _mm_setzero_pd();
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accum_23 = _mm_setzero_pd();
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__m128i abs_mask2 = _mm_set1_epi64x(0x7fffffffffffffff);
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for (i = tail_index_AVX2; i < tail_index_SSE; i += 8) {
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accum_20 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 0]), abs_mask2);
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accum_21 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 2]), abs_mask2);
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accum_22 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 4]), abs_mask2);
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accum_23 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 6]), abs_mask2);
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}
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accum_20 = accum_20 + accum_21 + accum_22 + accum_23;
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__m128d half_accum20;
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half_accum20 = _mm_hadd_pd(accum_20, accum_20);
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sumf += half_accum20[0];
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}
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for (i = tail_index_SSE; i < n; ++i) {
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sumf += ABS_K(x1[i]);
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}
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return sumf;
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}
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#endif
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@ -1,27 +1,80 @@
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/* need a new enough GCC for avx512 support */
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#if (( defined(__GNUC__) && __GNUC__ > 6 && defined(__AVX2__)) || (defined(__clang__) && __clang_major__ >= 6))
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#if (( defined(__GNUC__) && __GNUC__ > 6 && defined(__AVX512CD__)) || (defined(__clang__) && __clang_major__ >= 9))
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#if defined(__AVX512CD__)
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#define HAVE_KERNEL_16 1
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#define HAVE_DASUM_KERNEL 1
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#include <immintrin.h>
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static FLOAT dasum_kernel_16(BLASLONG n, FLOAT *x1)
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#include <stdint.h>
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#ifndef ABS_K
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#define ABS_K(a) ((a) > 0 ? (a) : (-(a)))
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#endif
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static FLOAT dasum_kernel(BLASLONG n, FLOAT *x1)
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{
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BLASLONG i = 0;
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FLOAT sumf = 0.0;
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__m512d accum_0, accum_1;
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if (n >= 256) {
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BLASLONG align_512 = ((64 - ((uintptr_t)x1 & (uintptr_t)0x3f)) >> 3) & 0x7;
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accum_0 = _mm512_setzero_pd();
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accum_1 = _mm512_setzero_pd();
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for (; i < n; i += 16) {
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accum_0 += _mm512_abs_pd(_mm512_loadu_pd(&x1[i+ 0]));
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accum_1 += _mm512_abs_pd(_mm512_loadu_pd(&x1[i+ 8]));
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for (i = 0; i < align_512; i++) {
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sumf += ABS_K(x1[i]);
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}
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accum_0 += accum_1;
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return _mm512_reduce_add_pd(accum_0);
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n -= align_512;
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x1 += align_512;
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}
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BLASLONG tail_index_SSE = n&(~7);
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BLASLONG tail_index_AVX512 = n&(~255);
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//
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if ( n >= 256 ) {
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__m512d accum_0, accum_1, accum_2, accum_3;
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accum_0 = _mm512_setzero_pd();
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accum_1 = _mm512_setzero_pd();
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accum_2 = _mm512_setzero_pd();
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accum_3 = _mm512_setzero_pd();
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for (i = 0; i < tail_index_AVX512; i += 32) {
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accum_0 += _mm512_abs_pd(_mm512_load_pd(&x1[i + 0]));
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accum_1 += _mm512_abs_pd(_mm512_load_pd(&x1[i + 8]));
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accum_2 += _mm512_abs_pd(_mm512_load_pd(&x1[i +16]));
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accum_3 += _mm512_abs_pd(_mm512_load_pd(&x1[i +24]));
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}
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accum_0 = accum_0 + accum_1 + accum_2 + accum_3;
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sumf += _mm512_reduce_add_pd(accum_0);
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}
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if (n >= 8) {
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__m128d accum_20, accum_21, accum_22, accum_23;
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accum_20 = _mm_setzero_pd();
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accum_21 = _mm_setzero_pd();
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accum_22 = _mm_setzero_pd();
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accum_23 = _mm_setzero_pd();
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__m128i abs_mask2 = _mm_set1_epi64x(0x7fffffffffffffff);
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for (i = tail_index_AVX512; i < tail_index_SSE; i += 8) {
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accum_20 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 0]), abs_mask2);
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accum_21 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 2]), abs_mask2);
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accum_22 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 4]), abs_mask2);
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accum_23 += (__m128d)_mm_and_si128(_mm_loadu_si128(&x1[i + 6]), abs_mask2);
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}
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accum_20 = accum_20 + accum_21 + accum_22 + accum_23;
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__m128d half_accum20;
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half_accum20 = _mm_hadd_pd(accum_20, accum_20);
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sumf += half_accum20[0];
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}
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for (i = tail_index_SSE; i < n; ++i) {
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sumf += ABS_K(x1[i]);
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}
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return sumf;
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}
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#endif
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#endif
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@ -1,13 +1,11 @@
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#include "common.h"
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#include <math.h>
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#if defined(DOUBLE)
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#error supports float only
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#else
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#define ABS fabsf
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#ifndef ABS_K
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#define ABS_K(a) ((a) > 0 ? (a) : (-(a)))
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#endif
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#endif
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@ -17,12 +15,13 @@
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#include "sasum_microk_haswell-2.c"
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#endif
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#ifndef HAVE_KERNEL_32
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#ifndef HAVE_SASUM_KERNEL
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static FLOAT sasum_kernel_32(BLASLONG n, FLOAT *x1)
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static FLOAT sasum_kernel(BLASLONG n, FLOAT *x1)
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{
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BLASLONG i=0;
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BLASLONG n_8 = n & -8;
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FLOAT *x = x1;
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FLOAT temp0, temp1, temp2, temp3;
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FLOAT temp4, temp5, temp6, temp7;
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@ -30,18 +29,18 @@ static FLOAT sasum_kernel_32(BLASLONG n, FLOAT *x1)
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FLOAT sum1 = 0.0;
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FLOAT sum2 = 0.0;
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FLOAT sum3 = 0.0;
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FLOAT sum4 = 0.0;
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while ( i< n )
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{
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while (i < n_8) {
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temp0 = ABS(x[0]);
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temp1 = ABS(x[1]);
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temp2 = ABS(x[2]);
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temp3 = ABS(x[3]);
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temp4 = ABS(x[4]);
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temp5 = ABS(x[5]);
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temp6 = ABS(x[6]);
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temp7 = ABS(x[7]);
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temp0 = ABS_K(x[0]);
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temp1 = ABS_K(x[1]);
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temp2 = ABS_K(x[2]);
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temp3 = ABS_K(x[3]);
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temp4 = ABS_K(x[4]);
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temp5 = ABS_K(x[5]);
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temp6 = ABS_K(x[6]);
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temp7 = ABS_K(x[7]);
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sum0 += temp0;
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sum1 += temp1;
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@ -58,7 +57,12 @@ static FLOAT sasum_kernel_32(BLASLONG n, FLOAT *x1)
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}
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return sum0+sum1+sum2+sum3;
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while (i < n) {
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sum4 += ABS_K(x1[i]);
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i++;
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}
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return sum0+sum1+sum2+sum3+sum4;
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}
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#endif
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@ -67,35 +71,17 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
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{
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BLASLONG i=0;
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FLOAT sumf = 0.0;
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BLASLONG n1;
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if (n <= 0 || inc_x <= 0) return(sumf);
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if ( inc_x == 1 )
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{
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n1 = n & -32;
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if ( n1 > 0 )
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{
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sumf = sasum_kernel_32(n1, x);
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i=n1;
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if ( inc_x == 1 ) {
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sumf = sasum_kernel(n, x);
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}
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while(i < n)
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{
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sumf += ABS(x[i]);
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i++;
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}
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}
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else
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{
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else {
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n *= inc_x;
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while(i < n)
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{
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sumf += ABS(x[i]);
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while(i < n) {
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sumf += ABS_K(x[i]);
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i += inc_x;
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}
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@ -1,12 +1,34 @@
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#if (( defined(__GNUC__) && __GNUC__ > 6 ) || (defined(__clang__) && __clang_major__ >= 6)) && defined(__AVX2__)
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#define HAVE_KERNEL_32 1
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#define HAVE_SASUM_KERNEL 1
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#include <immintrin.h>
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#include <stdint.h>
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static FLOAT sasum_kernel_32(BLASLONG n, FLOAT *x1)
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#ifndef ABS_K
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#define ABS_K(a) ((a) > 0 ? (a) : (-(a)))
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#endif
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static FLOAT sasum_kernel(BLASLONG n, FLOAT *x1)
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{
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BLASLONG i = 0;
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FLOAT sumf = 0.0;
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if (n >= 256) {
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BLASLONG align_256 = ((32 - ((uintptr_t)x1 & (uintptr_t)0x1f)) >> 2) & 0x7;
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for (i = 0; i < align_256; i++) {
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sumf += ABS_K(x1[i]);
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}
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n -= align_256;
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x1 += align_256;
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}
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|
||||
BLASLONG tail_index_SSE = n&(~7);
|
||||
BLASLONG tail_index_AVX2 = n&(~255);
|
||||
|
||||
if (n >= 256) {
|
||||
__m256 accum_0, accum_1, accum_2, accum_3;
|
||||
|
||||
accum_0 = _mm256_setzero_ps();
|
||||
|
|
@ -15,22 +37,46 @@ static FLOAT sasum_kernel_32(BLASLONG n, FLOAT *x1)
|
|||
accum_3 = _mm256_setzero_ps();
|
||||
|
||||
__m256i abs_mask = _mm256_set1_epi32(0x7fffffff);
|
||||
for (; i < n; i += 32) {
|
||||
accum_0 += (__m256)_mm256_and_si256(_mm256_loadu_si256(&x1[i+ 0]), abs_mask);
|
||||
accum_1 += (__m256)_mm256_and_si256(_mm256_loadu_si256(&x1[i+ 8]), abs_mask);
|
||||
accum_2 += (__m256)_mm256_and_si256(_mm256_loadu_si256(&x1[i+16]), abs_mask);
|
||||
accum_3 += (__m256)_mm256_and_si256(_mm256_loadu_si256(&x1[i+24]), abs_mask);
|
||||
for (i = 0; i < tail_index_AVX2; i += 32) {
|
||||
accum_0 += (__m256)_mm256_and_si256(_mm256_load_si256(&x1[i+ 0]), abs_mask);
|
||||
accum_1 += (__m256)_mm256_and_si256(_mm256_load_si256(&x1[i+ 8]), abs_mask);
|
||||
accum_2 += (__m256)_mm256_and_si256(_mm256_load_si256(&x1[i+16]), abs_mask);
|
||||
accum_3 += (__m256)_mm256_and_si256(_mm256_load_si256(&x1[i+24]), abs_mask);
|
||||
}
|
||||
|
||||
accum_0 = accum_0 + accum_1 + accum_2 + accum_3;
|
||||
|
||||
__m128 half_accum0;
|
||||
half_accum0 = _mm_add_ps(_mm256_extractf128_ps(accum_0, 0), _mm256_extractf128_ps(accum_0, 1));
|
||||
|
||||
half_accum0 = _mm_hadd_ps(half_accum0, half_accum0);
|
||||
half_accum0 = _mm_hadd_ps(half_accum0, half_accum0);
|
||||
|
||||
return half_accum0[0];
|
||||
sumf += half_accum0[0];
|
||||
|
||||
}
|
||||
|
||||
if (n >= 8) {
|
||||
__m128 accum_20, accum_21;
|
||||
accum_20 = _mm_setzero_ps();
|
||||
accum_21 = _mm_setzero_ps();
|
||||
|
||||
__m128i abs_mask2 = _mm_set1_epi32(0x7fffffff);
|
||||
for (i = tail_index_AVX2; i < tail_index_SSE; i += 8) {
|
||||
accum_20 += (__m128)_mm_and_si128(_mm_loadu_si128(&x1[i + 0]), abs_mask2);
|
||||
accum_21 += (__m128)_mm_and_si128(_mm_loadu_si128(&x1[i + 4]), abs_mask2);
|
||||
}
|
||||
|
||||
accum_20 += accum_21;
|
||||
accum_20 = _mm_hadd_ps(accum_20, accum_20);
|
||||
accum_20 = _mm_hadd_ps(accum_20, accum_20);
|
||||
|
||||
sumf += accum_20[0];
|
||||
}
|
||||
|
||||
for (i = tail_index_SSE; i < n; ++i) {
|
||||
sumf += ABS_K(x1[i]);
|
||||
}
|
||||
|
||||
return sumf;
|
||||
}
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -1,27 +1,73 @@
|
|||
/* need a new enough GCC for avx512 support */
|
||||
#if (( defined(__GNUC__) && __GNUC__ > 6 && defined(__AVX2__)) || (defined(__clang__) && __clang_major__ >= 6))
|
||||
#if (( defined(__GNUC__) && __GNUC__ > 6 && defined(__AVX512CD__)) || (defined(__clang__) && __clang_major__ >= 9))
|
||||
|
||||
#if defined(__AVX512CD__)
|
||||
#define HAVE_KERNEL_32 1
|
||||
#define HAVE_SASUM_KERNEL 1
|
||||
|
||||
#ifndef ABS_K
|
||||
#define ABS_K(a) ((a) > 0 ? (a) : (-(a)))
|
||||
#endif
|
||||
|
||||
#include <immintrin.h>
|
||||
#include <stdint.h>
|
||||
|
||||
static FLOAT sasum_kernel_32(BLASLONG n, FLOAT *x1)
|
||||
static FLOAT sasum_kernel(BLASLONG n, FLOAT *x1)
|
||||
{
|
||||
BLASLONG i = 0;
|
||||
FLOAT sumf = 0.0;
|
||||
|
||||
__m512 accum_0, accum_1;
|
||||
if (n >= 256) {
|
||||
BLASLONG align_512 = ((64 - ((uintptr_t)x1 & (uintptr_t)0x3f)) >> 2) & 0xf;
|
||||
|
||||
accum_0 = _mm512_setzero_ps();
|
||||
accum_1 = _mm512_setzero_ps();
|
||||
|
||||
for (; i < n; i += 32) {
|
||||
accum_0 += _mm512_abs_ps(_mm512_loadu_ps(&x1[i+ 0]));
|
||||
accum_1 += _mm512_abs_ps(_mm512_loadu_ps(&x1[i+ 16]));
|
||||
for (i = 0; i < align_512; i++) {
|
||||
sumf += ABS_K(x1[i]);
|
||||
}
|
||||
n -= align_512;
|
||||
x1 += align_512;
|
||||
}
|
||||
|
||||
accum_0 += accum_1;
|
||||
return _mm512_reduce_add_ps(accum_0);
|
||||
BLASLONG tail_index_SSE = n&(~7);
|
||||
BLASLONG tail_index_AVX512 = n&(~255);
|
||||
|
||||
if (n >= 256) {
|
||||
__m512 accum_0, accum_1, accum_2, accum_3;
|
||||
accum_0 = _mm512_setzero_ps();
|
||||
accum_1 = _mm512_setzero_ps();
|
||||
accum_2 = _mm512_setzero_ps();
|
||||
accum_3 = _mm512_setzero_ps();
|
||||
|
||||
for (i = 0; i < tail_index_AVX512; i += 64) {
|
||||
accum_0 += _mm512_abs_ps(_mm512_load_ps(&x1[i + 0]));
|
||||
accum_1 += _mm512_abs_ps(_mm512_load_ps(&x1[i +16]));
|
||||
accum_2 += _mm512_abs_ps(_mm512_load_ps(&x1[i +32]));
|
||||
accum_3 += _mm512_abs_ps(_mm512_load_ps(&x1[i +48]));
|
||||
}
|
||||
|
||||
accum_0 = accum_0 + accum_1 + accum_2 + accum_3;
|
||||
sumf += _mm512_reduce_add_ps(accum_0);
|
||||
}
|
||||
|
||||
if (n >= 8) {
|
||||
__m128 accum_20, accum_21;
|
||||
accum_20 = _mm_setzero_ps();
|
||||
accum_21 = _mm_setzero_ps();
|
||||
|
||||
__m128i abs_mask2 = _mm_set1_epi32(0x7fffffff);
|
||||
for (i = tail_index_AVX512; i < tail_index_SSE; i += 8) {
|
||||
accum_20 += (__m128)_mm_and_si128(_mm_loadu_si128(&x1[i + 0]), abs_mask2);
|
||||
accum_21 += (__m128)_mm_and_si128(_mm_loadu_si128(&x1[i + 4]), abs_mask2);
|
||||
}
|
||||
|
||||
accum_20 += accum_21;
|
||||
accum_20 = _mm_hadd_ps(accum_20, accum_20);
|
||||
accum_20 = _mm_hadd_ps(accum_20, accum_20);
|
||||
|
||||
sumf += accum_20[0];
|
||||
}
|
||||
|
||||
for (i = tail_index_SSE; i < n; i++) {
|
||||
sumf += ABS_K(x1[i]);
|
||||
}
|
||||
|
||||
return sumf;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue