From c9bad1403ad4ff8b170bab16affcc1de1a6b66ce Mon Sep 17 00:00:00 2001 From: wernsaar Date: Thu, 7 Aug 2014 07:49:33 +0200 Subject: [PATCH] added optimized sgemv_t kernel for sandybridge --- kernel/x86_64/KERNEL.SANDYBRIDGE | 6 -- kernel/x86_64/sgemv_t.c | 14 +-- kernel/x86_64/sgemv_t_microk_sandy-2.c | 132 +++++++++++++++++++++++++ 3 files changed, 134 insertions(+), 18 deletions(-) create mode 100644 kernel/x86_64/sgemv_t_microk_sandy-2.c diff --git a/kernel/x86_64/KERNEL.SANDYBRIDGE b/kernel/x86_64/KERNEL.SANDYBRIDGE index 26706b61d..d4fbca7f2 100644 --- a/kernel/x86_64/KERNEL.SANDYBRIDGE +++ b/kernel/x86_64/KERNEL.SANDYBRIDGE @@ -1,11 +1,5 @@ -ifdef OS_WINDOWS -SGEMVNKERNEL = sgemv_n.c -SGEMVTKERNEL = ../arm/gemv_t.c -else SGEMVNKERNEL = sgemv_n.c SGEMVTKERNEL = sgemv_t.c -endif - SGEMMKERNEL = sgemm_kernel_16x4_sandy.S SGEMMINCOPY = ../generic/gemm_ncopy_16.c diff --git a/kernel/x86_64/sgemv_t.c b/kernel/x86_64/sgemv_t.c index 47e749e58..adfaa9925 100644 --- a/kernel/x86_64/sgemv_t.c +++ b/kernel/x86_64/sgemv_t.c @@ -32,22 +32,12 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "sgemv_t_microk_bulldozer-2.c" #elif defined(HASWELL) #include "sgemv_t_microk_haswell-2.c" +#elif defined(SANDYBRIDGE) +#include "sgemv_t_microk_sandy-2.c" #elif defined(NEHALEM) #include "sgemv_t_microk_nehalem-2.c" #endif -/* -#if defined(BULLDOZER) || defined(PILEDRIVER) -#include "sgemv_n_microk_bulldozer-2.c" -#elif defined(HASWELL) -#include "sgemv_n_microk_haswell-2.c" -#elif defined(SANDYBRIDGE) -#include "sgemv_n_microk_sandy-2.c" -#elif defined(NEHALEM) -#include "sgemv_n_microk_nehalem-2.c" -#endif -*/ - #define NBMAX 4096 #ifndef HAVE_KERNEL_16x4 diff --git a/kernel/x86_64/sgemv_t_microk_sandy-2.c b/kernel/x86_64/sgemv_t_microk_sandy-2.c new file mode 100644 index 000000000..6a3748238 --- /dev/null +++ b/kernel/x86_64/sgemv_t_microk_sandy-2.c @@ -0,0 +1,132 @@ +/*************************************************************************** +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_16x4 1 +static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) __attribute__ ((noinline)); + +static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) +{ + + BLASLONG register i = 0; + + __asm__ __volatile__ + ( + "vzeroupper \n\t" + "vxorps %%ymm0 , %%ymm0, %%ymm0 \n\t" + "vxorps %%ymm1 , %%ymm1, %%ymm1 \n\t" + "vxorps %%ymm2 , %%ymm2, %%ymm2 \n\t" + "vxorps %%ymm3 , %%ymm3, %%ymm3 \n\t" + "vxorps %%ymm4 , %%ymm4, %%ymm4 \n\t" + "vxorps %%ymm5 , %%ymm5, %%ymm5 \n\t" + "vxorps %%ymm6 , %%ymm6, %%ymm6 \n\t" + "vxorps %%ymm7 , %%ymm7, %%ymm7 \n\t" + + ".align 16 \n\t" + ".L01LOOP%=: \n\t" + "prefetcht0 384(%2,%0,4) \n\t" + "vmovups (%2,%0,4), %%ymm12 \n\t" // 8 * x + "vmovups 32(%2,%0,4), %%ymm13 \n\t" // 8 * x + + "prefetcht0 384(%4,%0,4) \n\t" + "vmulps (%4,%0,4), %%ymm12, %%ymm8 \n\t" + "vaddps %%ymm4, %%ymm8 , %%ymm4 \n\t" + "vmulps 32(%4,%0,4), %%ymm13, %%ymm9 \n\t" + "vaddps %%ymm0, %%ymm9 , %%ymm0 \n\t" + "prefetcht0 384(%5,%0,4) \n\t" + "vmulps (%5,%0,4), %%ymm12, %%ymm10 \n\t" + "vaddps %%ymm1, %%ymm10, %%ymm1 \n\t" + "vmulps 32(%5,%0,4), %%ymm13, %%ymm11 \n\t" + "vaddps %%ymm5, %%ymm11, %%ymm5 \n\t" + "prefetcht0 384(%6,%0,4) \n\t" + "vmulps (%6,%0,4), %%ymm12, %%ymm8 \n\t" + "vaddps %%ymm6, %%ymm8 , %%ymm6 \n\t" + "vmulps 32(%6,%0,4), %%ymm13, %%ymm9 \n\t" + "vaddps %%ymm2, %%ymm9 , %%ymm2 \n\t" + "prefetcht0 384(%7,%0,4) \n\t" + "vmulps (%7,%0,4), %%ymm12, %%ymm10 \n\t" + "vaddps %%ymm7, %%ymm10, %%ymm7 \n\t" + "vmulps 32(%7,%0,4), %%ymm13, %%ymm11 \n\t" + "vaddps %%ymm3, %%ymm11, %%ymm3 \n\t" + + "addq $16, %0 \n\t" + "subq $16, %1 \n\t" + "jnz .L01LOOP%= \n\t" + + "vaddps %%ymm4, %%ymm0, %%ymm4 \n\t" + "vaddps %%ymm5, %%ymm1, %%ymm5 \n\t" + "vaddps %%ymm6, %%ymm2, %%ymm6 \n\t" + "vaddps %%ymm7, %%ymm3, %%ymm7 \n\t" + + "vextractf128 $1 , %%ymm4, %%xmm12 \n\t" + "vextractf128 $1 , %%ymm5, %%xmm13 \n\t" + "vextractf128 $1 , %%ymm6, %%xmm14 \n\t" + "vextractf128 $1 , %%ymm7, %%xmm15 \n\t" + + "vaddps %%xmm4, %%xmm12, %%xmm4 \n\t" + "vaddps %%xmm5, %%xmm13, %%xmm5 \n\t" + "vaddps %%xmm6, %%xmm14, %%xmm6 \n\t" + "vaddps %%xmm7, %%xmm15, %%xmm7 \n\t" + + "vhaddps %%xmm4, %%xmm4, %%xmm4 \n\t" + "vhaddps %%xmm5, %%xmm5, %%xmm5 \n\t" + "vhaddps %%xmm6, %%xmm6, %%xmm6 \n\t" + "vhaddps %%xmm7, %%xmm7, %%xmm7 \n\t" + + "vhaddps %%xmm4, %%xmm4, %%xmm4 \n\t" + "vhaddps %%xmm5, %%xmm5, %%xmm5 \n\t" + "vhaddps %%xmm6, %%xmm6, %%xmm6 \n\t" + "vhaddps %%xmm7, %%xmm7, %%xmm7 \n\t" + + "vmovss %%xmm4, (%3) \n\t" + "vmovss %%xmm5, 4(%3) \n\t" + "vmovss %%xmm6, 8(%3) \n\t" + "vmovss %%xmm7, 12(%3) \n\t" + + + "vzeroupper \n\t" + + : + : + "r" (i), // 0 + "r" (n), // 1 + "r" (x), // 2 + "r" (y), // 3 + "r" (ap[0]), // 4 + "r" (ap[1]), // 5 + "r" (ap[2]), // 6 + "r" (ap[3]) // 7 + : "cc", + "%xmm0", "%xmm1", "%xmm2", "%xmm3", + "%xmm4", "%xmm5", "%xmm6", "%xmm7", + "%xmm8", "%xmm9", "%xmm10", "%xmm11", + "%xmm12", "%xmm13", "%xmm14", "%xmm15", + "memory" + ); + +} + +