added optimized ddot kernel for nehalem
This commit is contained in:
wernsaar
parent
53ec5789e2
commit
16d6be852d
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@ -1,4 +1,5 @@
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SDOTKERNEL = sdot.c
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SDOTKERNEL = sdot.c
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DDOTKERNEL = ddot.c
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DSYMV_U_KERNEL = dsymv_U.c
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DSYMV_U_KERNEL = dsymv_U.c
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DSYMV_L_KERNEL = dsymv_L.c
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DSYMV_L_KERNEL = dsymv_L.c
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@ -0,0 +1,110 @@
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/***************************************************************************
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Copyright (c) 2014, 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
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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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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#include "common.h"
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#if defined(BULLDOZER) || defined(PILEDRIVER)
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#include "ddot_microk_bulldozer-2.c"
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#elif defined(NEHALEM)
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#include "ddot_microk_nehalem-2.c"
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#endif
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#ifndef HAVE_KERNEL_8
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void ddot_kernel_8(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *d)
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{
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BLASLONG register i = 0;
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FLOAT dot = 0.0;
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while(i < n)
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{
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dot += y[i] * x[i]
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+ y[i+1] * x[i+1]
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+ y[i+2] * x[i+2]
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+ y[i+3] * x[i+3]
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+ y[i+4] * x[i+4]
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+ y[i+5] * x[i+5]
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+ y[i+6] * x[i+6]
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+ y[i+7] * x[i+7] ;
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i+=8 ;
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}
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*d += dot;
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}
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#endif
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FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
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{
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BLASLONG i=0;
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BLASLONG ix=0,iy=0;
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FLOAT dot = 0.0 ;
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if ( n <= 0 ) return(dot);
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if ( (inc_x == 1) && (inc_y == 1) )
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{
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int n1 = n & -8;
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if ( n1 )
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ddot_kernel_8(n1, x, y , &dot );
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i = n1;
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while(i < n)
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{
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dot += y[i] * x[i] ;
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i++ ;
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}
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return(dot);
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}
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while(i < n)
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{
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dot += y[iy] * x[ix] ;
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ix += inc_x ;
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iy += inc_y ;
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i++ ;
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}
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return(dot);
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}
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@ -0,0 +1,94 @@
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/***************************************************************************
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Copyright (c) 2014, 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
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met:
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1. Redistributions of source code must retain the above copyright
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|
notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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|
notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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|
distribution.
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|
3. Neither the name of the OpenBLAS project nor the names of
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|
its contributors may be used to endorse or promote products
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|
derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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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_8 1
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static void ddot_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *dot) __attribute__ ((noinline));
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static void ddot_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *dot)
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{
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BLASLONG register i = 0;
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__asm__ __volatile__
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(
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"xorpd %%xmm4, %%xmm4 \n\t"
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"xorpd %%xmm5, %%xmm5 \n\t"
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"xorpd %%xmm6, %%xmm6 \n\t"
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"xorpd %%xmm7, %%xmm7 \n\t"
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".align 16 \n\t"
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".L01LOOP%=: \n\t"
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"movups (%2,%0,8), %%xmm12 \n\t" // 2 * x
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"movups (%3,%0,8), %%xmm8 \n\t" // 2 * y
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"movups 16(%2,%0,8), %%xmm13 \n\t" // 2 * x
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"movups 16(%3,%0,8), %%xmm9 \n\t" // 2 * y
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"movups 32(%2,%0,8), %%xmm14 \n\t" // 2 * x
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"movups 32(%3,%0,8), %%xmm10 \n\t" // 2 * y
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"movups 48(%2,%0,8), %%xmm15 \n\t" // 2 * x
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"movups 48(%3,%0,8), %%xmm11 \n\t" // 2 * y
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"mulpd %%xmm8 , %%xmm12 \n\t"
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"mulpd %%xmm9 , %%xmm13 \n\t"
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"mulpd %%xmm10, %%xmm14 \n\t"
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"mulpd %%xmm11, %%xmm15 \n\t"
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"addpd %%xmm12, %%xmm4 \n\t"
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"addpd %%xmm13, %%xmm5 \n\t"
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"addpd %%xmm14, %%xmm6 \n\t"
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"addpd %%xmm15, %%xmm7 \n\t"
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"addq $8 , %0 \n\t"
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"subq $8 , %1 \n\t"
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"jnz .L01LOOP%= \n\t"
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"addpd %%xmm5, %%xmm4 \n\t"
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"addpd %%xmm7, %%xmm6 \n\t"
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"addpd %%xmm6, %%xmm4 \n\t"
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"haddpd %%xmm4, %%xmm4 \n\t"
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"movsd %%xmm4, (%4) \n\t"
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:
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:
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"r" (i), // 0
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"r" (n), // 1
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"r" (x), // 2
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"r" (y), // 3
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"r" (dot) // 4
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: "cc",
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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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@ -83,8 +83,8 @@ static void sdot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *dot)
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"r" (y), // 3
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"r" (y), // 3
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"r" (dot) // 4
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"r" (dot) // 4
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: "cc",
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: "cc",
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"%xmm4", "%xmm5",
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"%xmm4", "%xmm5", "%xmm6", "%xmm7",
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"%xmm6", "%xmm7",
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"%xmm8", "%xmm9", "%xmm10", "%xmm11",
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"%xmm12", "%xmm13", "%xmm14", "%xmm15",
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"%xmm12", "%xmm13", "%xmm14", "%xmm15",
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"memory"
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"memory"
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);
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);
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