added optimized saxpy kernel for nehalem
This commit is contained in:
wernsaar
parent
55e81da379
commit
e45c960c2c
|
|
@ -1,3 +1,5 @@
|
|||
SAXPYKERNEL = saxpy.c
|
||||
|
||||
SDOTKERNEL = sdot.c
|
||||
DDOTKERNEL = ddot.c
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,103 @@
|
|||
/***************************************************************************
|
||||
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.
|
||||
*****************************************************************************/
|
||||
|
||||
|
||||
#include "common.h"
|
||||
|
||||
|
||||
#if defined(NEHALEM)
|
||||
#include "saxpy_microk_nehalem-2.c"
|
||||
#endif
|
||||
|
||||
|
||||
#ifndef HAVE_KERNEL_16
|
||||
|
||||
void saxpy_kernel_16(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
|
||||
{
|
||||
BLASLONG register i = 0;
|
||||
FLOAT a = *alpha;
|
||||
|
||||
while(i < n)
|
||||
{
|
||||
y[i] += a * x[i];
|
||||
y[i+1] += a * x[i+1];
|
||||
y[i+2] += a * x[i+2];
|
||||
y[i+3] += a * x[i+3];
|
||||
y[i+4] += a * x[i+4];
|
||||
y[i+5] += a * x[i+5];
|
||||
y[i+6] += a * x[i+6];
|
||||
y[i+7] += a * x[i+7];
|
||||
i+=8 ;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
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;
|
||||
BLASLONG ix=0,iy=0;
|
||||
|
||||
if ( n <= 0 ) return(0);
|
||||
|
||||
if ( (inc_x == 1) && (inc_y == 1) )
|
||||
{
|
||||
|
||||
int n1 = n & -16;
|
||||
|
||||
if ( n1 )
|
||||
saxpy_kernel_16(n1, x, y , &da );
|
||||
|
||||
i = n1;
|
||||
while(i < n)
|
||||
{
|
||||
|
||||
y[i] += da * x[i] ;
|
||||
i++ ;
|
||||
|
||||
}
|
||||
return(0);
|
||||
|
||||
|
||||
}
|
||||
|
||||
while(i < n)
|
||||
{
|
||||
|
||||
y[iy] += da * x[ix] ;
|
||||
ix += inc_x ;
|
||||
iy += inc_y ;
|
||||
i++ ;
|
||||
|
||||
}
|
||||
return(0);
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,91 @@
|
|||
/***************************************************************************
|
||||
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 saxpy_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline));
|
||||
|
||||
static void saxpy_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
|
||||
{
|
||||
|
||||
|
||||
BLASLONG register i = 0;
|
||||
|
||||
__asm__ __volatile__
|
||||
(
|
||||
"movss (%4), %%xmm0 \n\t" // alpha
|
||||
"shufps $0, %%xmm0, %%xmm0 \n\t"
|
||||
|
||||
".align 16 \n\t"
|
||||
".L01LOOP%=: \n\t"
|
||||
// "prefetcht0 192(%2,%0,4) \n\t"
|
||||
// "prefetcht0 192(%3,%0,4) \n\t"
|
||||
|
||||
"movups (%2,%0,4), %%xmm12 \n\t" // 4 * x
|
||||
"movups 16(%2,%0,4), %%xmm13 \n\t" // 4 * x
|
||||
"movups 32(%2,%0,4), %%xmm14 \n\t" // 4 * x
|
||||
"movups 48(%2,%0,4), %%xmm15 \n\t" // 4 * x
|
||||
"movups (%3,%0,4), %%xmm8 \n\t" // 4 * y
|
||||
"movups 16(%3,%0,4), %%xmm9 \n\t" // 4 * y
|
||||
"movups 32(%3,%0,4), %%xmm10 \n\t" // 4 * y
|
||||
"movups 48(%3,%0,4), %%xmm11 \n\t" // 4 * y
|
||||
|
||||
"mulps %%xmm0 , %%xmm12 \n\t" // alpha * x
|
||||
"mulps %%xmm0 , %%xmm13 \n\t"
|
||||
"mulps %%xmm0 , %%xmm14 \n\t"
|
||||
"mulps %%xmm0 , %%xmm15 \n\t"
|
||||
|
||||
"addps %%xmm12, %%xmm8 \n\t" // y += alpha *x
|
||||
"addps %%xmm13, %%xmm9 \n\t"
|
||||
"addps %%xmm14, %%xmm10 \n\t"
|
||||
"addps %%xmm15, %%xmm11 \n\t"
|
||||
|
||||
"movups %%xmm8 , (%3,%0,4) \n\t"
|
||||
"movups %%xmm9 , 16(%3,%0,4) \n\t"
|
||||
"movups %%xmm10, 32(%3,%0,4) \n\t"
|
||||
"movups %%xmm11, 48(%3,%0,4) \n\t"
|
||||
|
||||
"addq $16, %0 \n\t"
|
||||
"subq $16, %1 \n\t"
|
||||
"jnz .L01LOOP%= \n\t"
|
||||
|
||||
:
|
||||
:
|
||||
"r" (i), // 0
|
||||
"r" (n), // 1
|
||||
"r" (x), // 2
|
||||
"r" (y), // 3
|
||||
"r" (alpha) // 4
|
||||
: "cc",
|
||||
"%xmm0",
|
||||
"%xmm8", "%xmm9", "%xmm10", "%xmm11",
|
||||
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
|
||||
"memory"
|
||||
);
|
||||
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue