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added optimized zscal kernel for POWER8

This commit is contained in:
Werner Saar 2016-03-27 16:31:50 +02:00
parent f1a5dd06c5
commit 35c98a3556
3 changed files with 401 additions and 1 deletions
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2
kernel/power/KERNEL.POWER8
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@ -138,7 +138,7 @@ DROTKERNEL = drot.c
SSCALKERNEL = sscal.c SSCALKERNEL = sscal.c
DSCALKERNEL = dscal.c DSCALKERNEL = dscal.c
#CSCALKERNEL = ../arm/zscal.c #CSCALKERNEL = ../arm/zscal.c
#ZSCALKERNEL = zscal.c ZSCALKERNEL = zscal.c
# #
SSWAPKERNEL = sswap.c SSWAPKERNEL = sswap.c
DSWAPKERNEL = dswap.c DSWAPKERNEL = dswap.c

176
kernel/power/zscal.c Normal file
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@ -0,0 +1,176 @@
/***************************************************************************
Copyright (c) 2013-2016, 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.
*****************************************************************************/
/**************************************************************************************
* 2016/03/27 Werner Saar (wernsaar@googlemail.com)
* BLASTEST : OK
* CTEST : OK
* TEST : OK
* LAPACK-TEST : OK
**************************************************************************************/
#include "common.h"
#pragma GCC optimize "O1"
#if defined(POWER8)
#include "zscal_microk_power8.c"
#endif
#ifndef HAVE_KERNEL_8
static void zscal_kernel_8(BLASLONG n, FLOAT *x, FLOAT *alpha)
{
BLASLONG i=0;
FLOAT *x1=x;
FLOAT alpha_r1=alpha[0];
FLOAT alpha_r2=alpha[1];
FLOAT alpha_i1=alpha[2];
FLOAT alpha_i2=alpha[3];
FLOAT temp00, temp01, temp10, temp11, temp20, temp21, temp30, temp31;
FLOAT x0_r, x0_i, x1_r, x1_i, x2_r, x2_i, x3_r, x3_i;
while ( i<n )
{
x0_r = x1[0];
x0_i = x1[1];
x1_r = x1[2];
x1_i = x1[3];
x2_r = x1[4];
x2_i = x1[5];
x3_r = x1[6];
x3_i = x1[7];
temp00 = x0_r * alpha_r1;
temp10 = x1_r * alpha_r1;
temp20 = x2_r * alpha_r1;
temp30 = x3_r * alpha_r1;
temp01 = x0_i * alpha_r2;
temp11 = x1_i * alpha_r2;
temp21 = x2_i * alpha_r2;
temp31 = x3_i * alpha_r2;
temp00 += x0_i * alpha_i1;
temp10 += x1_i * alpha_i1;
temp20 += x2_i * alpha_i1;
temp30 += x3_i * alpha_i1;
temp01 += x0_r * alpha_i2;
temp11 += x1_r * alpha_i2;
temp21 += x2_r * alpha_i2;
temp31 += x3_r * alpha_i2;
x1[0] = temp00;
x1[1] = temp01;
x1[2] = temp10;
x1[3] = temp11;
x1[4] = temp20;
x1[5] = temp21;
x1[6] = temp30;
x1[7] = temp31;
x1 += 8;
i+=4;
}
return;
}
#endif
int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r,FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
{
BLASLONG i=0;
BLASLONG inc_x2;
BLASLONG ip = 0;
FLOAT temp;
FLOAT alpha[4] __attribute__ ((aligned (16)));;
BLASLONG n1;
if ( n <= 0 )
return(0);
if ( inc_x <= 0 )
return(0);
if ( inc_x == 1 )
{
n1 = n & -8;
if ( n1 > 0 )
{
alpha[0] = da_r;
alpha[1] = da_r;
alpha[2] = -da_i;
alpha[3] = da_i;
zscal_kernel_8(n1, x, alpha);
i=n1;
ip = n1 * 2;
}
while ( i < n )
{
temp = da_r * x[ip] - da_i * x[ip+1] ;
x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
x[ip] = temp;
ip += 2;
i++;
}
}
else
{
inc_x2 = 2 * inc_x;
while ( i < n )
{
temp = da_r * x[ip] - da_i * x[ip+1] ;
x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
x[ip] = temp;
ip += inc_x2;
i++;
}
}
return(0);
}

224
kernel/power/zscal_microk_power8.c Normal file
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@ -0,0 +1,224 @@
/***************************************************************************
Copyright (c) 2013-2016, 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.
*****************************************************************************/
/**************************************************************************************
* 2016/03/25 Werner Saar (wernsaar@googlemail.com)
*
* I don't use fused multipy-add ( lapack precision problems )
*
* BLASTEST : OK
* CTEST : OK
* TEST : OK
* LAPACK-TEST : OK
**************************************************************************************/
#define HAVE_KERNEL_8 1
static void zscal_kernel_8( BLASLONG n, FLOAT *x, FLOAT *alpha) __attribute__ ((noinline));
static void zscal_kernel_8( BLASLONG n, FLOAT *x, FLOAT *alpha)
{
BLASLONG i = n;
BLASLONG o16 = 16;
BLASLONG o32 = 32;
BLASLONG o48 = 48;
BLASLONG o64 = 64;
BLASLONG o80 = 80;
BLASLONG o96 = 96;
BLASLONG o112 = 112;
FLOAT *x1=x;
FLOAT *x2=x+1;
BLASLONG pre = 384;
__asm__ __volatile__
(
"lxvd2x 32, 0, %3 \n\t" // alpha_r , alpha_r
"lxvd2x 33, %5, %3 \n\t" // -alpha_i , alpha_i
"addi %1, %1, -8 \n\t"
"dcbt %2, %4 \n\t"
"lxvd2x 40, 0, %2 \n\t" // x0_r, x0_i
"lxvd2x 41, %5, %2 \n\t"
"lxvd2x 42, %6, %2 \n\t"
"lxvd2x 43, %7, %2 \n\t"
"lxvd2x 44, %8, %2 \n\t"
"lxvd2x 45, %9, %2 \n\t"
"lxvd2x 46, %10, %2 \n\t"
"lxvd2x 47, %11, %2 \n\t"
"addi %2, %2, 128 \n\t"
"addic. %0 , %0 , -8 \n\t"
"ble 2f \n\t"
".align 5 \n\t"
"1: \n\t"
"dcbt %2, %4 \n\t"
"xvmuldp 48, 40, 32 \n\t" // x0_r * alpha_r, x0_i * alpha_r
"xvmuldp 49, 41, 32 \n\t"
"xvmuldp 50, 42, 32 \n\t"
"xvmuldp 51, 43, 32 \n\t"
"xvmuldp 52, 44, 32 \n\t"
"xvmuldp 53, 45, 32 \n\t"
"xvmuldp 54, 46, 32 \n\t"
"xvmuldp 55, 47, 32 \n\t"
"xxswapd 56, 40 \n\t"
"xxswapd 57, 41 \n\t"
"xxswapd 58, 42 \n\t"
"xxswapd 59, 43 \n\t"
"xxswapd 60, 44 \n\t"
"xxswapd 61, 45 \n\t"
"xxswapd 62, 46 \n\t"
"xxswapd 63, 47 \n\t"
"xvmuldp 56, 56, 33 \n\t" // x0_i * -alpha_i, x0_r * alpha_i
"xvmuldp 57, 57, 33 \n\t"
"lxvd2x 40, 0, %2 \n\t" // x0_r, x0_i
"lxvd2x 41, %5, %2 \n\t"
"xvmuldp 58, 58, 33 \n\t"
"xvmuldp 59, 59, 33 \n\t"
"lxvd2x 42, %6, %2 \n\t"
"lxvd2x 43, %7, %2 \n\t"
"xvmuldp 60, 60, 33 \n\t"
"xvmuldp 61, 61, 33 \n\t"
"lxvd2x 44, %8, %2 \n\t"
"lxvd2x 45, %9, %2 \n\t"
"xvmuldp 62, 62, 33 \n\t"
"xvmuldp 63, 63, 33 \n\t"
"lxvd2x 46, %10, %2 \n\t"
"lxvd2x 47, %11, %2 \n\t"
"xvadddp 48, 48 , 56 \n\t"
"xvadddp 49, 49 , 57 \n\t"
"xvadddp 50, 50 , 58 \n\t"
"xvadddp 51, 51 , 59 \n\t"
"stxvd2x 48, 0, %1 \n\t"
"stxvd2x 49, %5, %1 \n\t"
"xvadddp 52, 52 , 60 \n\t"
"xvadddp 53, 53 , 61 \n\t"
"stxvd2x 50, %6, %1 \n\t"
"stxvd2x 51, %7, %1 \n\t"
"xvadddp 54, 54 , 62 \n\t"
"xvadddp 55, 55 , 63 \n\t"
"stxvd2x 52, %8, %1 \n\t"
"stxvd2x 53, %9, %1 \n\t"
"stxvd2x 54, %10, %1 \n\t"
"stxvd2x 55, %11, %1 \n\t"
"addi %1, %1, 128 \n\t"
"addi %2, %2, 128 \n\t"
"addic. %0 , %0 , -8 \n\t"
"bgt 1b \n\t"
"2: \n\t"
"xvmuldp 48, 40, 32 \n\t" // x0_r * alpha_r, x0_i * alpha_r
"xvmuldp 49, 41, 32 \n\t"
"xvmuldp 50, 42, 32 \n\t"
"xvmuldp 51, 43, 32 \n\t"
"xvmuldp 52, 44, 32 \n\t"
"xvmuldp 53, 45, 32 \n\t"
"xvmuldp 54, 46, 32 \n\t"
"xvmuldp 55, 47, 32 \n\t"
"xxswapd 56, 40 \n\t"
"xxswapd 57, 41 \n\t"
"xxswapd 58, 42 \n\t"
"xxswapd 59, 43 \n\t"
"xxswapd 60, 44 \n\t"
"xxswapd 61, 45 \n\t"
"xxswapd 62, 46 \n\t"
"xxswapd 63, 47 \n\t"
"xvmuldp 56, 56, 33 \n\t" // x0_i * -alpha_i, x0_r * alpha_i
"xvmuldp 57, 57, 33 \n\t"
"xvmuldp 58, 58, 33 \n\t"
"xvmuldp 59, 59, 33 \n\t"
"xvmuldp 60, 60, 33 \n\t"
"xvmuldp 61, 61, 33 \n\t"
"xvmuldp 62, 62, 33 \n\t"
"xvmuldp 63, 63, 33 \n\t"
"xvadddp 48, 48 , 56 \n\t"
"xvadddp 49, 49 , 57 \n\t"
"xvadddp 50, 50 , 58 \n\t"
"xvadddp 51, 51 , 59 \n\t"
"xvadddp 52, 52 , 60 \n\t"
"xvadddp 53, 53 , 61 \n\t"
"xvadddp 54, 54 , 62 \n\t"
"xvadddp 55, 55 , 63 \n\t"
"stxvd2x 48, 0, %1 \n\t"
"stxvd2x 49, %5, %1 \n\t"
"stxvd2x 50, %6, %1 \n\t"
"stxvd2x 51, %7, %1 \n\t"
"stxvd2x 52, %8, %1 \n\t"
"stxvd2x 53, %9, %1 \n\t"
"stxvd2x 54, %10, %1 \n\t"
"stxvd2x 55, %11, %1 \n\t"
:
:
"r" (i), // 0
"r" (x2), // 1
"r" (x1), // 2
"r" (alpha), // 3
"r" (pre), // 4
"r" (o16), // 5
"r" (o32), // 6
"r" (o48), // 7
"r" (o64), // 8
"r" (o80), // 9
"r" (o96), // 10
"r" (o112) // 11
: "cr0", "%0", "%2" , "%1", "memory"
);
}