Merge pull request #3852 from bartoldeman/sscal-opt

Add sscal.c + microkernels for Haswell, Zen, Skylake and newer.
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Martin Kroeker 2022-12-19 13:15:14 +01:00 committed by GitHub
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5 changed files with 464 additions and 0 deletions

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SSCALKERNEL = sscal.c
DSCALKERNEL = dscal.c
CSCALKERNEL = cscal.c
ZSCALKERNEL = zscal.c

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SSCALKERNEL = sscal.c
DSCALKERNEL = dscal.c
CSCALKERNEL = cscal.c
ZSCALKERNEL = zscal.c

196
kernel/x86_64/sscal.c Normal file
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/***************************************************************************
Copyright (c) 2013 - 2022, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Neither the name of the OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#include "common.h"
#if defined(HASWELL) || defined(ZEN)
#include "sscal_microk_haswell-2.c"
#elif defined (SKYLAKEX) || defined (COOPERLAKE) || defined (SAPPHIRERAPIDS)
#include "sscal_microk_skylakex-2.c"
#endif
#if !defined(HAVE_KERNEL_16)
static void sscal_kernel_16( BLASLONG n, FLOAT *da , FLOAT *x )
{
BLASLONG i;
FLOAT alpha = *da;
for( i=0; i<n; i+=8 )
{
x[0] *= alpha;
x[1] *= alpha;
x[2] *= alpha;
x[3] *= alpha;
x[4] *= alpha;
x[5] *= alpha;
x[6] *= alpha;
x[7] *= alpha;
x+=8;
}
}
static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha , FLOAT *x )
{
BLASLONG i;
for( i=0; i<n; i+=8 )
{
x[0] = 0.0;
x[1] = 0.0;
x[2] = 0.0;
x[3] = 0.0;
x[4] = 0.0;
x[5] = 0.0;
x[6] = 0.0;
x[7] = 0.0;
x+=8;
}
}
#endif
static void sscal_kernel_inc_8(BLASLONG n, FLOAT *alpha, FLOAT *x, BLASLONG inc_x) __attribute__ ((noinline));
static void sscal_kernel_inc_8(BLASLONG n, FLOAT *alpha, FLOAT *x, BLASLONG inc_x)
{
BLASLONG i;
BLASLONG inc_x2 = 2 * inc_x;
BLASLONG inc_x3 = inc_x2 + inc_x;
FLOAT t0,t1,t2,t3;
FLOAT da = alpha[0];
for ( i=0; i<n; i+=4 )
{
t0 = da * x[0];
t1 = da * x[inc_x];
t2 = da * x[inc_x2];
t3 = da * x[inc_x3];
x[0] = t0;
x[inc_x] = t1;
x[inc_x2] = t2;
x[inc_x3] = t3;
x+=4*inc_x;
}
}
int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
{
BLASLONG i=0,j=0;
if ( inc_x != 1 )
{
if ( da == 0.0 )
{
BLASLONG n1 = n & -2;
while(j < n1)
{
x[i]=0.0;
x[i+inc_x]=0.0;
i += 2*inc_x ;
j+=2;
}
while(j < n)
{
x[i]=0.0;
i += inc_x ;
j++;
}
}
else
{
BLASLONG n1 = n & -8;
if ( n1 > 0 )
{
sscal_kernel_inc_8(n1, &da, x, inc_x);
i = n1 * inc_x;
j = n1;
}
while(j < n)
{
x[i] *= da;
i += inc_x ;
j++;
}
}
return(0);
}
BLASLONG n1 = n & -16;
if ( n1 > 0 )
{
if ( da == 0.0 )
sscal_kernel_16_zero(n1 , &da , x);
else
sscal_kernel_16(n1 , &da , x);
}
if ( da == 0.0 )
{
for ( i=n1 ; i<n; i++ )
{
x[i] = 0.0;
}
}
else
{
for ( i=n1 ; i<n; i++ )
{
x[i] *= da;
}
}
return(0);
}

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/***************************************************************************
Copyright (c) 2014-2022, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Neither the name of the OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#define HAVE_KERNEL_16 1
static void sscal_kernel_16( BLASLONG n, FLOAT *alpha, FLOAT *x) __attribute__ ((noinline));
static void sscal_kernel_16( BLASLONG n, FLOAT *alpha, FLOAT *x)
{
BLASLONG n1 = n >> 5 ;
BLASLONG n2 = n & 16 ;
__asm__ __volatile__
(
"vbroadcastss (%2), %%ymm0 \n\t" // alpha
"addq $128, %1 \n\t"
"cmpq $0, %0 \n\t"
"je 4f \n\t"
"vmulps -128(%1), %%ymm0, %%ymm4 \n\t"
"vmulps -96(%1), %%ymm0, %%ymm5 \n\t"
"vmulps -64(%1), %%ymm0, %%ymm6 \n\t"
"vmulps -32(%1), %%ymm0, %%ymm7 \n\t"
"subq $1 , %0 \n\t"
"jz 2f \n\t"
".p2align 4 \n\t"
"1: \n\t"
// "prefetcht0 640(%1) \n\t"
"vmovups %%ymm4 ,-128(%1) \n\t"
"vmovups %%ymm5 , -96(%1) \n\t"
"vmulps 0(%1), %%ymm0, %%ymm4 \n\t"
// "prefetcht0 704(%1) \n\t"
"vmovups %%ymm6 , -64(%1) \n\t"
"vmulps 32(%1), %%ymm0, %%ymm5 \n\t"
"vmovups %%ymm7 , -32(%1) \n\t"
"vmulps 64(%1), %%ymm0, %%ymm6 \n\t"
"vmulps 96(%1), %%ymm0, %%ymm7 \n\t"
"addq $128, %1 \n\t"
"subq $1 , %0 \n\t"
"jnz 1b \n\t"
"2: \n\t"
"vmovups %%ymm4 ,-128(%1) \n\t"
"vmovups %%ymm5 , -96(%1) \n\t"
"vmovups %%ymm6 , -64(%1) \n\t"
"vmovups %%ymm7 , -32(%1) \n\t"
"addq $128, %1 \n\t"
"4: \n\t"
"cmpq $16 ,%3 \n\t"
"jne 5f \n\t"
"vmulps -128(%1), %%ymm0, %%ymm4 \n\t"
"vmulps -96(%1), %%ymm0, %%ymm5 \n\t"
"vmovups %%ymm4 ,-128(%1) \n\t"
"vmovups %%ymm5 , -96(%1) \n\t"
"5: \n\t"
"vzeroupper \n\t"
:
"+r" (n1), // 0
"+r" (x) // 1
:
"r" (alpha), // 2
"r" (n2) // 3
: "cc",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7",
"%xmm8", "%xmm9", "%xmm10", "%xmm11",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);
}
static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha, FLOAT *x) __attribute__ ((noinline));
static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha, FLOAT *x)
{
BLASLONG n1 = n >> 5 ;
BLASLONG n2 = n & 16 ;
__asm__ __volatile__
(
"vxorpd %%ymm0, %%ymm0 , %%ymm0 \n\t"
"addq $128, %1 \n\t"
"cmpq $0, %0 \n\t"
"je 2f \n\t"
".p2align 4 \n\t"
"1: \n\t"
"vmovups %%ymm0 ,-128(%1) \n\t"
"vmovups %%ymm0 , -96(%1) \n\t"
"vmovups %%ymm0 , -64(%1) \n\t"
"vmovups %%ymm0 , -32(%1) \n\t"
"addq $128, %1 \n\t"
"subq $1 , %0 \n\t"
"jnz 1b \n\t"
"2: \n\t"
"cmpq $16 ,%3 \n\t"
"jne 4f \n\t"
"vmovups %%ymm0 ,-128(%1) \n\t"
"vmovups %%ymm0 , -96(%1) \n\t"
"4: \n\t"
"vzeroupper \n\t"
:
"+r" (n1), // 0
"+r" (x) // 1
:
"r" (alpha), // 2
"r" (n2) // 3
: "cc",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7",
"%xmm8", "%xmm9", "%xmm10", "%xmm11",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);
}

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/***************************************************************************
Copyright (c) 2014-2015, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Neither the name of the OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
/* need a new enough GCC for avx512 support */
#if (( defined(__GNUC__) && __GNUC__ > 6 && defined(__AVX2__)) || (defined(__clang__) && __clang_major__ >= 6))
#include <immintrin.h>
#define HAVE_KERNEL_16 1
static void sscal_kernel_16( BLASLONG n, FLOAT *alpha, FLOAT *x)
{
int i = 0;
#ifdef __AVX512CD__
__m512 __alpha5 = _mm512_broadcastss_ps(_mm_load_ss(alpha));
BLASLONG nn = n & -32;
for (; i < nn; i += 32) {
__m512 a = _mm512_loadu_ps(&x[i + 0]);
__m512 b = _mm512_loadu_ps(&x[i + 16]);
a *= __alpha5;
b *= __alpha5;
_mm512_storeu_ps(&x[i + 0], a);
_mm512_storeu_ps(&x[i + 16], b);
}
for (; i < n; i += 16) {
_mm512_storeu_ps(&x[i + 0], __alpha5 * _mm512_loadu_ps(&x[i + 0]));
}
#else
__m256 __alpha = _mm256_broadcastss_ps(_mm_load_ss(alpha));
for (; i < n; i += 16) {
_mm256_storeu_ps(&x[i + 0], __alpha * _mm256_loadu_ps(&x[i + 0]));
_mm256_storeu_ps(&x[i + 8], __alpha * _mm256_loadu_ps(&x[i + 8]));
}
#endif
}
static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha, FLOAT *x)
{
int i = 0;
/* question to self: Why is this not just memset() */
#ifdef __AVX512CD__
__m512 zero = _mm512_setzero_ps();
for (; i < n; i += 16) {
_mm512_storeu_ps(&x[i], zero);
}
#else
__m256 zero = _mm256_setzero_ps();
for (; i < n; i += 16) {
_mm256_storeu_ps(&x[i + 0], zero);
_mm256_storeu_ps(&x[i + 8], zero);
}
#endif
}
#else
#include "sscal_microk_haswell-2.c"
#endif