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added optimized sger kernel for sandybridge

tags/v0.2.15^2
Werner Saar 10 years ago
parent
e216f686cb
commit
b2e1797dc6
3 changed files with 210 additions and 0 deletions
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  1. +2
    -0
      kernel/x86_64/KERNEL.SANDYBRIDGE
  2. +84
    -0
      kernel/x86_64/sger.c
  3. +124
    -0
      kernel/x86_64/sger_microk_sandy-2.c

+ 2
- 0
kernel/x86_64/KERNEL.SANDYBRIDGE View File

@@ -1,3 +1,5 @@
SGERKERNEL = sger.c

SGEMVNKERNEL = sgemv_n_4.c
SGEMVTKERNEL = sgemv_t_4.c



+ 84
- 0
kernel/x86_64/sger.c View File

@@ -0,0 +1,84 @@
/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin. */
/* 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. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
/* AUSTIN ``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 UNIVERSITY OF TEXAS AT */
/* AUSTIN 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. */
/* */
/* The views and conclusions contained in the software and */
/* documentation are those of the authors and should not be */
/* interpreted as representing official policies, either expressed */
/* or implied, of The University of Texas at Austin. */
/*********************************************************************/

#include <stdio.h>
#include "common.h"

#if defined(SANDYBRIDGE)
#include "sger_microk_sandy-2.c"
#endif

int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha,
FLOAT *x, BLASLONG incx,
FLOAT *y, BLASLONG incy,
FLOAT *a, BLASLONG lda, FLOAT *buffer){

FLOAT *X = x;

if (incx != 1) {
X = buffer;
COPY_K(m, x, incx, X, 1);
}

BLASLONG m1 = m & -16;

while (n > 0)
{
FLOAT y0 = alpha * *y;
if ( m1 > 0 )
{
#ifdef HAVE_KERNEL_16
sger_kernel_16(m1, X, a, &y0);
#else
AXPYU_K(m1, 0, 0, y0, X, 1, a, 1, NULL, 0);
#endif
}
if ( m > m1 )
{
AXPYU_K(m-m1, 0, 0, y0, X+m1 , 1, a+m1, 1, NULL, 0);
}
a += lda;
y += incy;
n --;
}

return 0;
}


+ 124
- 0
kernel/x86_64/sger_microk_sandy-2.c View File

@@ -0,0 +1,124 @@
/***************************************************************************
Copyright (c) 2014, 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 sger_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline));

static void sger_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
{


BLASLONG register i = 0;

__asm__ __volatile__
(
"vbroadcastss (%4), %%xmm0 \n\t" // alpha
"prefetcht0 256(%3,%0,4) \n\t"
"vmovups (%3,%0,4), %%xmm8 \n\t"
"vmovups 16(%3,%0,4), %%xmm9 \n\t"
"vmovups 32(%3,%0,4), %%xmm10 \n\t"
"vmovups 48(%3,%0,4), %%xmm11 \n\t"

"prefetcht0 256(%2,%0,4) \n\t"
"vmovups (%2,%0,4), %%xmm4 \n\t"
"vmovups 16(%2,%0,4), %%xmm5 \n\t"
"vmovups 32(%2,%0,4), %%xmm6 \n\t"
"vmovups 48(%2,%0,4), %%xmm7 \n\t"

"addq $16, %0 \n\t"
"subq $16, %1 \n\t"
"jz 2f \n\t"

".align 16 \n\t"
"1: \n\t"

"vmulps %%xmm4, %%xmm0, %%xmm4 \n\t"
"vaddps %%xmm8 , %%xmm4, %%xmm12 \n\t"
"vmulps %%xmm5, %%xmm0, %%xmm5 \n\t"
"vaddps %%xmm9 , %%xmm5, %%xmm13 \n\t"
"vmulps %%xmm6, %%xmm0, %%xmm6 \n\t"
"vaddps %%xmm10, %%xmm6, %%xmm14 \n\t"
"vmulps %%xmm7, %%xmm0, %%xmm7 \n\t"
"vaddps %%xmm11, %%xmm7, %%xmm15 \n\t"

"prefetcht0 256(%3,%0,4) \n\t"
"vmovups (%3,%0,4), %%xmm8 \n\t"
"vmovups 16(%3,%0,4), %%xmm9 \n\t"
"vmovups 32(%3,%0,4), %%xmm10 \n\t"
"vmovups 48(%3,%0,4), %%xmm11 \n\t"

"prefetcht0 256(%2,%0,4) \n\t"
"vmovups (%2,%0,4), %%xmm4 \n\t"
"vmovups 16(%2,%0,4), %%xmm5 \n\t"
"vmovups 32(%2,%0,4), %%xmm6 \n\t"
"vmovups 48(%2,%0,4), %%xmm7 \n\t"

"vmovups %%xmm12, -64(%3,%0,4) \n\t"
"vmovups %%xmm13, -48(%3,%0,4) \n\t"
"vmovups %%xmm14, -32(%3,%0,4) \n\t"
"vmovups %%xmm15, -16(%3,%0,4) \n\t"

"addq $16, %0 \n\t"
"subq $16, %1 \n\t"
"jnz 1b \n\t"

"2: \n\t"
"vmulps %%xmm4, %%xmm0, %%xmm4 \n\t"
"vmulps %%xmm5, %%xmm0, %%xmm5 \n\t"
"vmulps %%xmm6, %%xmm0, %%xmm6 \n\t"
"vmulps %%xmm7, %%xmm0, %%xmm7 \n\t"

"vaddps %%xmm8 , %%xmm4, %%xmm12 \n\t"
"vaddps %%xmm9 , %%xmm5, %%xmm13 \n\t"
"vaddps %%xmm10, %%xmm6, %%xmm14 \n\t"
"vaddps %%xmm11, %%xmm7, %%xmm15 \n\t"

"vmovups %%xmm12, -64(%3,%0,4) \n\t"
"vmovups %%xmm13, -48(%3,%0,4) \n\t"
"vmovups %%xmm14, -32(%3,%0,4) \n\t"
"vmovups %%xmm15, -16(%3,%0,4) \n\t"

"vzeroupper \n\t"

:
:
"r" (i), // 0
"r" (n), // 1
"r" (x), // 2
"r" (y), // 3
"r" (alpha) // 4
: "cc",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7",
"%xmm8", "%xmm9", "%xmm10", "%xmm11",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);

}



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