optimized saxpy for piledriver
This commit is contained in:
Werner Saar
parent
d7a17ad85d
commit
331c417637
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@ -1,3 +1,4 @@
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SAXPYKERNEL = saxpy.c
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DAXPYKERNEL = daxpy.c
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CAXPYKERNEL = caxpy.c
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ZAXPYKERNEL = zaxpy.c
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@ -35,6 +35,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "saxpy_microk_haswell-2.c"
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#elif defined(SANDYBRIDGE)
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#include "saxpy_microk_sandy-2.c"
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#elif defined(PILEDRIVER)
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#include "saxpy_microk_piledriver-2.c"
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#endif
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@ -0,0 +1,159 @@
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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_16 1
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static void saxpy_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline));
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static void saxpy_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
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{
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BLASLONG register i = 0;
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if ( n < 1024 )
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{
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__asm__ __volatile__
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(
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"vzeroupper \n\t"
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"vbroadcastss (%4), %%xmm0 \n\t" // alpha
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".align 16 \n\t"
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"1: \n\t"
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"vmovups (%3,%0,4), %%xmm8 \n\t" // 4 * y
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"vmovups 16(%3,%0,4), %%xmm9 \n\t" // 4 * y
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"vmovups 32(%3,%0,4), %%xmm10 \n\t" // 4 * y
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"vmovups 48(%3,%0,4), %%xmm11 \n\t" // 4 * y
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"vmovups 64(%3,%0,4), %%xmm12 \n\t" // 4 * y
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"vmovups 80(%3,%0,4), %%xmm13 \n\t" // 4 * y
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"vmovups 96(%3,%0,4), %%xmm14 \n\t" // 4 * y
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"vmovups 112(%3,%0,4), %%xmm15 \n\t" // 4 * y
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"vfmadd231ps (%2,%0,4), %%xmm0 , %%xmm8 \n\t" // y += alpha * x
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"vfmadd231ps 16(%2,%0,4), %%xmm0 , %%xmm9 \n\t" // y += alpha * x
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"vfmadd231ps 32(%2,%0,4), %%xmm0 , %%xmm10 \n\t" // y += alpha * x
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"vfmadd231ps 48(%2,%0,4), %%xmm0 , %%xmm11 \n\t" // y += alpha * x
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"vfmadd231ps 64(%2,%0,4), %%xmm0 , %%xmm12 \n\t" // y += alpha * x
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"vfmadd231ps 80(%2,%0,4), %%xmm0 , %%xmm13 \n\t" // y += alpha * x
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"vfmadd231ps 96(%2,%0,4), %%xmm0 , %%xmm14 \n\t" // y += alpha * x
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"vfmadd231ps 112(%2,%0,4), %%xmm0 , %%xmm15 \n\t" // y += alpha * x
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"vmovups %%xmm8 , (%3,%0,4) \n\t"
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"vmovups %%xmm9 , 16(%3,%0,4) \n\t"
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"vmovups %%xmm10, 32(%3,%0,4) \n\t"
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"vmovups %%xmm11, 48(%3,%0,4) \n\t"
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"vmovups %%xmm12, 64(%3,%0,4) \n\t"
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"vmovups %%xmm13, 80(%3,%0,4) \n\t"
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"vmovups %%xmm14, 96(%3,%0,4) \n\t"
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"vmovups %%xmm15,112(%3,%0,4) \n\t"
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"addq $32, %0 \n\t"
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"subq $32, %1 \n\t"
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"jnz 1b \n\t"
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"vzeroupper \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" (alpha) // 4
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: "cc",
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"%xmm0",
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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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return;
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}
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__asm__ __volatile__
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(
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"vzeroupper \n\t"
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"vbroadcastss (%4), %%xmm0 \n\t" // alpha
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".align 16 \n\t"
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"1: \n\t"
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"prefetcht0 512(%3,%0,4) \n\t"
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"prefetcht0 576(%3,%0,4) \n\t"
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"vmovups (%3,%0,4), %%xmm8 \n\t" // 4 * y
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"vmovups 16(%3,%0,4), %%xmm9 \n\t" // 4 * y
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"vmovups 32(%3,%0,4), %%xmm10 \n\t" // 4 * y
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"vmovups 48(%3,%0,4), %%xmm11 \n\t" // 4 * y
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"vmovups 64(%3,%0,4), %%xmm12 \n\t" // 4 * y
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"vmovups 80(%3,%0,4), %%xmm13 \n\t" // 4 * y
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"vmovups 96(%3,%0,4), %%xmm14 \n\t" // 4 * y
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"vmovups 112(%3,%0,4), %%xmm15 \n\t" // 4 * y
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"prefetcht0 512(%2,%0,4) \n\t"
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"prefetcht0 576(%2,%0,4) \n\t"
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"vfmadd231ps (%2,%0,4), %%xmm0 , %%xmm8 \n\t" // y += alpha * x
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"vfmadd231ps 16(%2,%0,4), %%xmm0 , %%xmm9 \n\t" // y += alpha * x
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"vfmadd231ps 32(%2,%0,4), %%xmm0 , %%xmm10 \n\t" // y += alpha * x
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"vfmadd231ps 48(%2,%0,4), %%xmm0 , %%xmm11 \n\t" // y += alpha * x
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"vfmadd231ps 64(%2,%0,4), %%xmm0 , %%xmm12 \n\t" // y += alpha * x
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"vfmadd231ps 80(%2,%0,4), %%xmm0 , %%xmm13 \n\t" // y += alpha * x
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"vfmadd231ps 96(%2,%0,4), %%xmm0 , %%xmm14 \n\t" // y += alpha * x
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"vfmadd231ps 112(%2,%0,4), %%xmm0 , %%xmm15 \n\t" // y += alpha * x
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"vmovups %%xmm8 , (%3,%0,4) \n\t"
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"vmovups %%xmm9 , 16(%3,%0,4) \n\t"
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"vmovups %%xmm10, 32(%3,%0,4) \n\t"
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"vmovups %%xmm11, 48(%3,%0,4) \n\t"
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"vmovups %%xmm12, 64(%3,%0,4) \n\t"
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"vmovups %%xmm13, 80(%3,%0,4) \n\t"
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"vmovups %%xmm14, 96(%3,%0,4) \n\t"
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"vmovups %%xmm15,112(%3,%0,4) \n\t"
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"addq $32, %0 \n\t"
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"subq $32, %1 \n\t"
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"jnz 1b \n\t"
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"vzeroupper \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" (alpha) // 4
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: "cc",
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"%xmm0",
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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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