Add sscal.c + microkernels for Haswell, Zen, Skylake and newer.
Unlike [dcz]scal, sscal still used the original GotoBLAS SSE code from scal_sse.S. This code follows dscal as closely as possible, except for the inc_x > 1 code for which a plain C loop is used much like the one in cscal.c, instead of an adaptation of the SSE2 asm code of dscal.c (I tried but the performance wasn't better than the plain C loop).
This commit is contained in:
Bart Oldeman
parent
042e3c0e7c
commit
5ceca1a4d8
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@ -1,3 +1,4 @@
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SSCALKERNEL = sscal.c
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DSCALKERNEL = dscal.c
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CSCALKERNEL = cscal.c
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ZSCALKERNEL = zscal.c
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@ -1,3 +1,4 @@
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SSCALKERNEL = sscal.c
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DSCALKERNEL = dscal.c
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CSCALKERNEL = cscal.c
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ZSCALKERNEL = zscal.c
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@ -0,0 +1,196 @@
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/***************************************************************************
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Copyright (c) 2013 - 2022, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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||||
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.
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*****************************************************************************/
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#include "common.h"
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#if defined(HASWELL) || defined(ZEN)
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#include "sscal_microk_haswell-2.c"
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#elif defined (SKYLAKEX) || defined (COOPERLAKE) || defined (SAPPHIRERAPIDS)
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#include "sscal_microk_skylakex-2.c"
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#endif
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#if !defined(HAVE_KERNEL_16)
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static void sscal_kernel_16( BLASLONG n, FLOAT *da , FLOAT *x )
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{
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BLASLONG i;
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FLOAT alpha = *da;
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for( i=0; i<n; i+=8 )
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{
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x[0] *= alpha;
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x[1] *= alpha;
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x[2] *= alpha;
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x[3] *= alpha;
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x[4] *= alpha;
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x[5] *= alpha;
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x[6] *= alpha;
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x[7] *= alpha;
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x+=8;
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}
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}
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static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha , FLOAT *x )
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{
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BLASLONG i;
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for( i=0; i<n; i+=8 )
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{
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x[0] = 0.0;
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x[1] = 0.0;
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x[2] = 0.0;
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x[3] = 0.0;
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x[4] = 0.0;
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x[5] = 0.0;
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x[6] = 0.0;
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x[7] = 0.0;
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x+=8;
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}
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}
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#endif
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static void sscal_kernel_inc_8(BLASLONG n, FLOAT *alpha, FLOAT *x, BLASLONG inc_x) __attribute__ ((noinline));
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static void sscal_kernel_inc_8(BLASLONG n, FLOAT *alpha, FLOAT *x, BLASLONG inc_x)
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{
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BLASLONG i;
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BLASLONG inc_x2 = 2 * inc_x;
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BLASLONG inc_x3 = inc_x2 + inc_x;
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FLOAT t0,t1,t2,t3;
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FLOAT da = alpha[0];
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for ( i=0; i<n; i+=4 )
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{
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t0 = da * x[0];
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t1 = da * x[inc_x];
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t2 = da * x[inc_x2];
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t3 = da * x[inc_x3];
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x[0] = t0;
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x[inc_x] = t1;
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x[inc_x2] = t2;
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x[inc_x3] = t3;
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x+=4*inc_x;
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}
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}
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i=0,j=0;
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if ( inc_x != 1 )
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{
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if ( da == 0.0 )
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{
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BLASLONG n1 = n & -2;
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while(j < n1)
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{
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x[i]=0.0;
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x[i+inc_x]=0.0;
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i += 2*inc_x ;
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j+=2;
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}
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while(j < n)
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{
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x[i]=0.0;
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i += inc_x ;
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j++;
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}
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}
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else
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{
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BLASLONG n1 = n & -8;
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if ( n1 > 0 )
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{
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sscal_kernel_inc_8(n1, &da, x, inc_x);
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i = n1 * inc_x;
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j = n1;
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}
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while(j < n)
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{
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x[i] *= da;
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i += inc_x ;
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j++;
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}
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}
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return(0);
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}
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BLASLONG n1 = n & -16;
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if ( n1 > 0 )
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{
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if ( da == 0.0 )
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sscal_kernel_16_zero(n1 , &da , x);
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else
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sscal_kernel_16(n1 , &da , x);
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}
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if ( da == 0.0 )
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{
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for ( i=n1 ; i<n; i++ )
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{
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x[i] = 0.0;
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}
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}
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else
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{
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for ( i=n1 ; i<n; i++ )
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{
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x[i] *= da;
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}
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}
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return(0);
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}
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@ -0,0 +1,180 @@
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/***************************************************************************
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Copyright (c) 2014-2022, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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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
|
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#define HAVE_KERNEL_16 1
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static void sscal_kernel_16( BLASLONG n, FLOAT *alpha, FLOAT *x) __attribute__ ((noinline));
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static void sscal_kernel_16( BLASLONG n, FLOAT *alpha, FLOAT *x)
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{
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BLASLONG n1 = n >> 5 ;
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BLASLONG n2 = n & 16 ;
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__asm__ __volatile__
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(
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"vbroadcastss (%2), %%ymm0 \n\t" // alpha
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"addq $128, %1 \n\t"
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"cmpq $0, %0 \n\t"
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"je 4f \n\t"
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"vmulps -128(%1), %%ymm0, %%ymm4 \n\t"
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"vmulps -96(%1), %%ymm0, %%ymm5 \n\t"
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"vmulps -64(%1), %%ymm0, %%ymm6 \n\t"
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"vmulps -32(%1), %%ymm0, %%ymm7 \n\t"
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"subq $1 , %0 \n\t"
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"jz 2f \n\t"
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".p2align 4 \n\t"
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"1: \n\t"
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// "prefetcht0 640(%1) \n\t"
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"vmovups %%ymm4 ,-128(%1) \n\t"
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"vmovups %%ymm5 , -96(%1) \n\t"
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"vmulps 0(%1), %%ymm0, %%ymm4 \n\t"
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// "prefetcht0 704(%1) \n\t"
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"vmovups %%ymm6 , -64(%1) \n\t"
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"vmulps 32(%1), %%ymm0, %%ymm5 \n\t"
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"vmovups %%ymm7 , -32(%1) \n\t"
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"vmulps 64(%1), %%ymm0, %%ymm6 \n\t"
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"vmulps 96(%1), %%ymm0, %%ymm7 \n\t"
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"addq $128, %1 \n\t"
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"subq $1 , %0 \n\t"
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"jnz 1b \n\t"
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"2: \n\t"
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"vmovups %%ymm4 ,-128(%1) \n\t"
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"vmovups %%ymm5 , -96(%1) \n\t"
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"vmovups %%ymm6 , -64(%1) \n\t"
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"vmovups %%ymm7 , -32(%1) \n\t"
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"addq $128, %1 \n\t"
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"4: \n\t"
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"cmpq $16 ,%3 \n\t"
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"jne 5f \n\t"
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"vmulps -128(%1), %%ymm0, %%ymm4 \n\t"
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"vmulps -96(%1), %%ymm0, %%ymm5 \n\t"
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"vmovups %%ymm4 ,-128(%1) \n\t"
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"vmovups %%ymm5 , -96(%1) \n\t"
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"5: \n\t"
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"vzeroupper \n\t"
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:
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"+r" (n1), // 0
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"+r" (x) // 1
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:
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"r" (alpha), // 2
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"r" (n2) // 3
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: "cc",
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"%xmm0", "%xmm1", "%xmm2", "%xmm3",
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"%xmm4", "%xmm5", "%xmm6", "%xmm7",
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"%xmm8", "%xmm9", "%xmm10", "%xmm11",
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"%xmm12", "%xmm13", "%ymm14", "%xmm15",
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"memory"
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);
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}
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static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha, FLOAT *x) __attribute__ ((noinline));
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static void sscal_kernel_16_zero( BLASLONG n, FLOAT *alpha, FLOAT *x)
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{
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BLASLONG n1 = n >> 5 ;
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BLASLONG n2 = n & 16 ;
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__asm__ __volatile__
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(
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"vxorpd %%ymm0, %%ymm0 , %%ymm0 \n\t"
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"addq $128, %1 \n\t"
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"cmpq $0, %0 \n\t"
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"je 2f \n\t"
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".p2align 4 \n\t"
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"1: \n\t"
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"vmovups %%ymm0 ,-128(%1) \n\t"
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"vmovups %%ymm0 , -96(%1) \n\t"
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|
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"vmovups %%ymm0 , -64(%1) \n\t"
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"vmovups %%ymm0 , -32(%1) \n\t"
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|
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"addq $128, %1 \n\t"
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"subq $1 , %0 \n\t"
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"jnz 1b \n\t"
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"2: \n\t"
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|
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"cmpq $16 ,%3 \n\t"
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"jne 4f \n\t"
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"vmovups %%ymm0 ,-128(%1) \n\t"
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"vmovups %%ymm0 , -96(%1) \n\t"
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"4: \n\t"
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"vzeroupper \n\t"
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:
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"+r" (n1), // 0
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"+r" (x) // 1
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:
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"r" (alpha), // 2
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"r" (n2) // 3
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: "cc",
|
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"%xmm0", "%xmm1", "%xmm2", "%xmm3",
|
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"%xmm4", "%xmm5", "%xmm6", "%xmm7",
|
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"%xmm8", "%xmm9", "%xmm10", "%xmm11",
|
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"%xmm12", "%xmm13", "%xmm14", "%xmm15",
|
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"memory"
|
||||
);
|
||||
|
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}
|
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|
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|
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|
|
@ -0,0 +1,86 @@
|
|||
/***************************************************************************
|
||||
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))
|
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|
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#include <immintrin.h>
|
||||
|
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#define HAVE_KERNEL_16 1
|
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|
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static void sscal_kernel_16( BLASLONG n, FLOAT *alpha, FLOAT *x)
|
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{
|
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int i = 0;
|
||||
|
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#ifdef __AVX512CD__
|
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__m512 __alpha5 = _mm512_broadcastss_ps(_mm_load_ss(alpha));
|
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BLASLONG nn = n & -32;
|
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for (; i < nn; i += 32) {
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__m512 a = _mm512_loadu_ps(&x[i + 0]);
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__m512 b = _mm512_loadu_ps(&x[i + 16]);
|
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a *= __alpha5;
|
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b *= __alpha5;
|
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_mm512_storeu_ps(&x[i + 0], a);
|
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_mm512_storeu_ps(&x[i + 16], b);
|
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}
|
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for (; i < n; i += 16) {
|
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_mm512_storeu_ps(&x[i + 0], __alpha5 * _mm512_loadu_ps(&x[i + 0]));
|
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}
|
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#else
|
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__m256 __alpha = _mm256_broadcastss_ps(_mm_load_ss(alpha));
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for (; i < n; i += 16) {
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_mm256_storeu_ps(&x[i + 0], __alpha * _mm256_loadu_ps(&x[i + 0]));
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_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 "dscal_microk_haswell-2.c"
|
||||
#endif
|
||||
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Reference in New Issue