added optimized sgemv_t for bulldozer and piledriver
This commit is contained in:
wernsaar
parent
b3938fe371
commit
2cce125c79
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@ -1,7 +1,9 @@
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ifdef OS_WINDOWS
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SGEMVNKERNEL = ../arm/gemv_n.c
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SGEMVTKERNEL = ../arm/gemv_t.c
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else
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SGEMVNKERNEL = sgemv_n_avx.c
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SGEMVTKERNEL = sgemv_t_avx.c
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endif
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@ -1,7 +1,9 @@
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ifdef OS_WINDOWS
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SGEMVNKERNEL = ../arm/gemv_n.c
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SGEMVTKERNEL = ../arm/gemv_t.c
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else
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SGEMVNKERNEL = sgemv_n_avx.c
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SGEMVTKERNEL = sgemv_t_avx.c
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endif
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@ -0,0 +1,228 @@
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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 "sgemv_t_microk_bulldozer.c"
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#endif
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static void copy_x(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_src)
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{
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BLASLONG i;
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for ( i=0; i<n; i++ )
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{
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*dest = *src;
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dest++;
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src += inc_src;
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}
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}
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static void sgemv_kernel_1( BLASLONG n, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOAT *x, FLOAT *y)
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{
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FLOAT register temp0 = 0.0;
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BLASLONG i;
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for ( i=0; i<n ; i++)
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{
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temp0 += a[i] * x[i];
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}
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temp0 *= alpha ;
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*y += temp0;
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}
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int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
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{
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BLASLONG i;
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BLASLONG j;
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FLOAT *a_ptr;
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FLOAT *x_ptr;
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FLOAT *y_ptr;
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FLOAT *a_ptrl;
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BLASLONG m1;
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BLASLONG register m2;
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FLOAT *xbuffer;
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xbuffer = buffer;
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BLASLONG register Mblock;
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m1 = m / 1024 ;
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m2 = m % 1024 ;
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x_ptr = x;
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a_ptr = a;
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for (j=0; j<m1; j++)
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(1024,x_ptr,xbuffer,inc_x);
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y_ptr = y;
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a_ptrl = a_ptr;
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for(i = 0; i<n; i++ )
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{
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sgemv_kernel_16(1024,alpha,a_ptrl,lda,xbuffer,y_ptr);
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y_ptr += inc_y;
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a_ptrl += lda;
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}
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a_ptr += 1024;
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x_ptr += 1024 * inc_x;
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}
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if ( m2 == 0 ) return(0);
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Mblock = 512;
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while ( Mblock >= 16 )
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{
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if ( m2 & Mblock)
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(Mblock,x_ptr,xbuffer,inc_x);
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y_ptr = y;
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a_ptrl = a_ptr;
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for(i = 0; i<n; i++ )
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{
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sgemv_kernel_16(Mblock,alpha,a_ptrl,lda,xbuffer,y_ptr);
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y_ptr += inc_y;
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a_ptrl += lda;
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}
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a_ptr += Mblock;
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x_ptr += Mblock * inc_x;
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}
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Mblock /= 2;
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}
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if ( m2 & Mblock)
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(Mblock,x_ptr,xbuffer,inc_x);
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y_ptr = y;
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a_ptrl = a_ptr;
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for(i = 0; i<n; i++ )
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{
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sgemv_kernel_1(Mblock,alpha,a_ptrl,lda,xbuffer,y_ptr);
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y_ptr += inc_y;
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a_ptrl += lda;
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}
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a_ptr += Mblock;
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x_ptr += Mblock * inc_x;
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}
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Mblock /= 2;
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if ( m2 & Mblock)
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(Mblock,x_ptr,xbuffer,inc_x);
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y_ptr = y;
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a_ptrl = a_ptr;
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for(i = 0; i<n; i++ )
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{
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sgemv_kernel_1(Mblock,alpha,a_ptrl,lda,xbuffer,y_ptr);
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y_ptr += inc_y;
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a_ptrl += lda;
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}
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a_ptr += Mblock;
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x_ptr += Mblock * inc_x;
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}
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Mblock /= 2;
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if ( m2 & Mblock)
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(Mblock,x_ptr,xbuffer,inc_x);
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y_ptr = y;
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a_ptrl = a_ptr;
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for(i = 0; i<n; i++ )
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{
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sgemv_kernel_1(Mblock,alpha,a_ptrl,lda,xbuffer,y_ptr);
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y_ptr += inc_y;
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a_ptrl += lda;
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}
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a_ptr += Mblock;
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x_ptr += Mblock * inc_x;
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}
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Mblock /= 2;
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if ( m2 & Mblock)
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{
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xbuffer = x_ptr;
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y_ptr = y;
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a_ptrl = a_ptr;
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for(i = 0; i<n; i++ )
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{
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sgemv_kernel_1(Mblock,alpha,a_ptrl,lda,xbuffer,y_ptr);
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y_ptr += inc_y;
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a_ptrl += lda;
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}
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}
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return(0);
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}
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@ -0,0 +1,99 @@
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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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static void sgemv_kernel_16( long n, float alpha, float *a, long lda, float *x, float *y)
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{
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//n = n / 16;
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__asm__ __volatile__
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(
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"movq %0, %%rax\n\t" // n -> rax
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"vmovss %1, %%xmm1\n\t" // alpha -> xmm1
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"movq %2, %%rsi\n\t" // adress of a -> rsi
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"movq %3, %%rcx\n\t" // value of lda > rcx
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"movq %4, %%rdi\n\t" // adress of x -> rdi
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"movq %5, %%rdx\n\t" // adress of y -> rdx
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"leaq (, %%rcx,4), %%rcx \n\t" // scale lda by size of float
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"leaq (%%rsi,%%rcx,1), %%r8 \n\t" // pointer to next line
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"vxorps %%xmm12, %%xmm12, %%xmm12\n\t" // set to zero
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"vxorps %%xmm13, %%xmm13, %%xmm13\n\t" // set to zero
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"vxorps %%xmm14, %%xmm14, %%xmm14\n\t" // set to zero
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"vxorps %%xmm15, %%xmm15, %%xmm15\n\t" // set to zero
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"sarq $4, %%rax \n\t" // n = n / 16
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".align 16 \n\t"
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".L01LOOP%=: \n\t"
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// "prefetcht0 512(%%rsi) \n\t"
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"prefetcht0 (%%r8) \n\t" //prefetch next line of a
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"vmovups (%%rsi), %%xmm4 \n\t"
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"vmovups 4*4(%%rsi), %%xmm5 \n\t"
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"vmovups 8*4(%%rsi), %%xmm6 \n\t"
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"vmovups 12*4(%%rsi), %%xmm7 \n\t"
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"vfmaddps %%xmm12, 0*4(%%rdi), %%xmm4, %%xmm12\n\t" // multiply a and c and add to temp
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"vfmaddps %%xmm13, 4*4(%%rdi), %%xmm5, %%xmm13\n\t" // multiply a and c and add to temp
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"vfmaddps %%xmm14, 8*4(%%rdi), %%xmm6, %%xmm14\n\t" // multiply a and c and add to temp
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"vfmaddps %%xmm15, 12*4(%%rdi), %%xmm7, %%xmm15\n\t" // multiply a and c and add to temp
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"addq $16*4 , %%r8 \n\t" // increment prefetch pointer
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"addq $16*4 , %%rsi \n\t" // increment pointer of a
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"addq $16*4 , %%rdi \n\t" // increment pointer of c
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"dec %%rax \n\t" // n = n -1
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"jnz .L01LOOP%= \n\t"
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"vaddps %%xmm12, %%xmm14, %%xmm12\n\t"
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"vaddps %%xmm13, %%xmm15, %%xmm13\n\t"
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"vaddps %%xmm12, %%xmm13, %%xmm12\n\t"
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"vhaddps %%xmm12, %%xmm12, %%xmm12\n\t"
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"vhaddps %%xmm12, %%xmm12, %%xmm12\n\t"
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"vfmaddss (%%rdx), %%xmm12, %%xmm1, %%xmm12\n\t"
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"vmovss %%xmm12, (%%rdx) \n\t" // store temp -> y
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:
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:
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"m" (n), // 0
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"m" (alpha), // 1
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"m" (a), // 2
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"m" (lda), // 3
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"m" (x), // 4
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"m" (y) // 5
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: "%rax", "%rcx", "%rdx", "%rsi", "%rdi", "%r8",
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"%xmm0", "%xmm1",
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"%xmm4", "%xmm5", "%xmm6", "%xmm7",
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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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