From 13889515b3531a3b453cad8917305a84468eb7f9 Mon Sep 17 00:00:00 2001 From: Werner Saar Date: Wed, 15 Apr 2015 16:29:25 +0200 Subject: [PATCH] added optimized caxpy-kernel for sandybridge --- kernel/x86_64/KERNEL.SANDYBRIDGE | 1 + kernel/x86_64/caxpy.c | 2 + kernel/x86_64/caxpy_microk_sandy-2.c | 116 +++++++++++++++++++++++++++ 3 files changed, 119 insertions(+) create mode 100644 kernel/x86_64/caxpy_microk_sandy-2.c diff --git a/kernel/x86_64/KERNEL.SANDYBRIDGE b/kernel/x86_64/KERNEL.SANDYBRIDGE index a60f4a17a..b783c9a90 100644 --- a/kernel/x86_64/KERNEL.SANDYBRIDGE +++ b/kernel/x86_64/KERNEL.SANDYBRIDGE @@ -11,6 +11,7 @@ ZDOTKERNEL = zdot.c SAXPYKERNEL = saxpy.c DAXPYKERNEL = daxpy.c +CAXPYKERNEL = caxpy.c SGEMMKERNEL = sgemm_kernel_16x4_sandy.S SGEMMINCOPY = ../generic/gemm_ncopy_16.c diff --git a/kernel/x86_64/caxpy.c b/kernel/x86_64/caxpy.c index ce174c59d..455d9d2ce 100644 --- a/kernel/x86_64/caxpy.c +++ b/kernel/x86_64/caxpy.c @@ -35,6 +35,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "caxpy_microk_bulldozer-2.c" #elif defined(HASWELL) #include "caxpy_microk_haswell-2.c" +#elif defined(SANDYBRIDGE) +#include "caxpy_microk_sandy-2.c" #endif diff --git a/kernel/x86_64/caxpy_microk_sandy-2.c b/kernel/x86_64/caxpy_microk_sandy-2.c new file mode 100644 index 000000000..dbfce208f --- /dev/null +++ b/kernel/x86_64/caxpy_microk_sandy-2.c @@ -0,0 +1,116 @@ +/*************************************************************************** +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_8 1 +static void caxpy_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline)); + +static void caxpy_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha) +{ + +#if !defined(CONJ) + FLOAT mvec[8] = { -1.0, 1.0, -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 }; +#else + FLOAT mvec[8] = { 1.0, -1.0, 1.0, -1.0, 1.0, -1.0, 1.0, -1.0 }; +#endif + + BLASLONG register i = 0; + + __asm__ __volatile__ + ( + "vzeroupper \n\t" + "vbroadcastss (%4), %%ymm0 \n\t" // real part of alpha + "vbroadcastss 4(%4), %%ymm1 \n\t" // imag part of alpha +#if !defined(CONJ) + "vmulps (%5), %%ymm1 , %%ymm1 \n\t" +#else + "vmulps (%5), %%ymm0 , %%ymm0 \n\t" +#endif + + ".align 16 \n\t" + "1: \n\t" + + "vmovups (%2,%0,4), %%ymm5 \n\t" // 4 complex values from x + ".align 2 \n\t" + "vmovups 32(%2,%0,4), %%ymm7 \n\t" // 4 complex values from x + "vmovups 64(%2,%0,4), %%ymm9 \n\t" // 4 complex values from x + "vmovups 96(%2,%0,4), %%ymm11 \n\t" // 4 complex values from x + + "vpermilps $0xb1 , %%ymm5 , %%ymm4 \n\t" // exchange real and imag part + "vpermilps $0xb1 , %%ymm7 , %%ymm6 \n\t" // exchange real and imag part + "vpermilps $0xb1 , %%ymm9 , %%ymm8 \n\t" // exchange real and imag part + "vpermilps $0xb1 , %%ymm11, %%ymm10 \n\t" // exchange real and imag part + + "vmulps %%ymm5 , %%ymm0 , %%ymm5 \n\t" + "vmulps %%ymm7 , %%ymm0 , %%ymm7 \n\t" + "vmulps %%ymm9 , %%ymm0 , %%ymm9 \n\t" + "vmulps %%ymm11, %%ymm0 , %%ymm11 \n\t" + + "vaddps (%3,%0,4), %%ymm5 , %%ymm5 \n\t" + "vaddps 32(%3,%0,4), %%ymm7 , %%ymm7 \n\t" + "vaddps 64(%3,%0,4), %%ymm9 , %%ymm9 \n\t" + "vaddps 96(%3,%0,4), %%ymm11, %%ymm11 \n\t" + + "vmulps %%ymm4 , %%ymm1 , %%ymm4 \n\t" + "vmulps %%ymm6 , %%ymm1 , %%ymm6 \n\t" + "vmulps %%ymm8 , %%ymm1 , %%ymm8 \n\t" + "vmulps %%ymm10, %%ymm1 , %%ymm10 \n\t" + + "vaddps %%ymm4 , %%ymm5 , %%ymm5 \n\t" + "vaddps %%ymm6 , %%ymm7 , %%ymm7 \n\t" + "vaddps %%ymm8 , %%ymm9 , %%ymm9 \n\t" + "vaddps %%ymm10, %%ymm11, %%ymm11 \n\t" + + "vmovups %%ymm5 , (%3,%0,4) \n\t" + ".align 2 \n\t" + "vmovups %%ymm7 , 32(%3,%0,4) \n\t" + "vmovups %%ymm9 , 64(%3,%0,4) \n\t" + "vmovups %%ymm11, 96(%3,%0,4) \n\t" + + "addq $32, %0 \n\t" + "subq $16, %1 \n\t" + "jnz 1b \n\t" + "vzeroupper \n\t" + + : + : + "r" (i), // 0 + "r" (n), // 1 + "r" (x), // 2 + "r" (y), // 3 + "r" (alpha), // 4 + "r" (mvec) // 5 + : "cc", + "%xmm0", "%xmm1", + "%xmm4", "%xmm5", "%xmm6", "%xmm7", + "%xmm8", "%xmm9", "%xmm10", "%xmm11", + "%xmm12", "%xmm13", "%xmm14", "%xmm15", + "memory" + ); + + +} +