added optimized ssymv_U kernel for nehalem
This commit is contained in:
wernsaar
parent
4f39447c05
commit
4ba4ab623f
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@ -1,3 +1,6 @@
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#DSYMV_U_KERNEL = dsymv_U.c
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SSYMV_U_KERNEL = ssymv_U.c
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SGEMVNKERNEL = sgemv_n.c
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SGEMVTKERNEL = sgemv_t.c
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@ -31,41 +31,94 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#if defined(BULLDOZER)
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#include "ssymv_U_microk_bulldozer-2.c"
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#elif defined(NEHALEM)
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#include "ssymv_U_microk_nehalem-2.c"
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#endif
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#ifndef HAVE_KERNEL_4x4
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#ifndef HAVE_KERNEL_16x2
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static void ssymv_kernel_16x2(BLASLONG n, FLOAT *a0, FLOAT *a1, FLOAT *xp, FLOAT *yp, FLOAT *temp1, FLOAT *temp2)
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static void ssymv_kernel_4x4(BLASLONG n, FLOAT *a0, FLOAT *a1, FLOAT *a2, FLOAT *a3, FLOAT *xp, FLOAT *yp, FLOAT *temp1, FLOAT *temp2)
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{
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FLOAT at0,at1,at2,at3;
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FLOAT tmp2[2] = { 0.0, 0.0 };
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FLOAT x;
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FLOAT tmp2[4] = { 0.0, 0.0, 0.0, 0.0 };
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FLOAT tp0;
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FLOAT tp1;
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FLOAT tp2;
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FLOAT tp3;
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BLASLONG i;
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tp0 = temp1[0];
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tp1 = temp1[1];
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tp2 = temp1[2];
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tp3 = temp1[3];
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for (i=0; i<n; i+=2)
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for (i=0; i<n; i++)
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{
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at0 = a0[i];
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at1 = a1[i];
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at2 = a0[i+1];
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at3 = a1[i+1];
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yp[i] += tp0 * at0 + tp1 *at1;
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yp[i+1] += tp0 * at2 + tp1 *at3;
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tmp2[0] += at0 * xp[i] + at2 * xp[i+1];
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tmp2[1] += at1 * xp[i] + at3 * xp[i+1];
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at2 = a2[i];
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at3 = a3[i];
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x = xp[i];
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yp[i] += tp0 * at0 + tp1 *at1 + tp2 * at2 + tp3 * at3;
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tmp2[0] += at0 * x;
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tmp2[1] += at1 * x;
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tmp2[2] += at2 * x;
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tmp2[3] += at3 * x;
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}
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temp2[0] = tmp2[0];
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temp2[1] = tmp2[1];
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temp2[0] += tmp2[0];
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temp2[1] += tmp2[1];
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temp2[2] += tmp2[2];
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temp2[3] += tmp2[3];
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}
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#endif
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#ifndef HAVE_KERNEL_1x4
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static void ssymv_kernel_1x4(BLASLONG from, BLASLONG to, FLOAT *a0, FLOAT *a1, FLOAT *a2, FLOAT *a3, FLOAT *xp, FLOAT *yp, FLOAT *temp1, FLOAT *temp2)
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{
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FLOAT at0,at1,at2,at3;
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FLOAT x;
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FLOAT tmp2[4] = { 0.0, 0.0, 0.0, 0.0 };
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FLOAT tp0;
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FLOAT tp1;
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FLOAT tp2;
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FLOAT tp3;
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BLASLONG i;
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tp0 = temp1[0];
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tp1 = temp1[1];
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tp2 = temp1[2];
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tp3 = temp1[3];
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for (i=from; i<to; i++)
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{
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at0 = a0[i];
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at1 = a1[i];
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at2 = a2[i];
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at3 = a3[i];
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x = xp[i];
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yp[i] += tp0 * at0 + tp1 *at1 + tp2 * at2 + tp3 * at3;
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tmp2[0] += at0 * x;
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tmp2[1] += at1 * x;
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tmp2[2] += at2 * x;
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tmp2[3] += at3 * x;
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}
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temp2[0] += tmp2[0];
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temp2[1] += tmp2[1];
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temp2[2] += tmp2[2];
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temp2[3] += tmp2[3];
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}
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#endif
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static void ssymv_kernel_8x1(BLASLONG n, FLOAT *a0, FLOAT *xp, FLOAT *yp, FLOAT *temp1, FLOAT *temp2)
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{
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FLOAT at0,at1,at2,at3;
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@ -100,13 +153,16 @@ int CNAME(BLASLONG m, BLASLONG offset, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOA
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BLASLONG ix,iy;
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BLASLONG jx,jy;
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BLASLONG j;
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BLASLONG j1;
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BLASLONG j2;
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BLASLONG m2;
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FLOAT temp1;
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FLOAT temp2;
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FLOAT *xp, *yp;
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FLOAT *a0,*a1;
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FLOAT tmp1[2];
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FLOAT tmp2[2];
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FLOAT *a0,*a1,*a2,*a3;
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FLOAT at0,at1,at2,at3;
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FLOAT tmp1[4];
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FLOAT tmp2[4];
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#if 0
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if( m != offset )
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@ -146,37 +202,45 @@ int CNAME(BLASLONG m, BLASLONG offset, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOA
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xp = x;
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yp = y;
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m2 = m - ( mrange % 2 );
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m2 = m - ( mrange % 4 );
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for (j=m1; j<m2; j+=2)
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for (j=m1; j<m2; j+=4)
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{
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tmp1[0] = alpha * xp[j];
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tmp1[1] = alpha * xp[j+1];
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tmp1[2] = alpha * xp[j+2];
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tmp1[3] = alpha * xp[j+3];
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tmp2[0] = 0.0;
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tmp2[1] = 0.0;
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tmp2[2] = 0.0;
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tmp2[3] = 0.0;
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a0 = &a[j*lda];
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a1 = a0+lda;
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FLOAT at0,at1;
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BLASLONG j1 = (j/16)*16;
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a2 = a1+lda;
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a3 = a2+lda;
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j1 = (j/8)*8;
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if ( j1 )
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ssymv_kernel_16x2(j1, a0, a1, xp, yp, tmp1, tmp2);
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ssymv_kernel_4x4(j1, a0, a1, a2, a3, xp, yp, tmp1, tmp2);
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if ( j1 < j )
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ssymv_kernel_1x4(j1, j, a0, a1, a2, a3, xp, yp, tmp1, tmp2);
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for (i=j1; i<j; i++)
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j2 = 0;
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for ( j1 = j ; j1 < j+4 ; j1++ )
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{
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at0 = a0[i];
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at1 = a1[i];
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yp[i] += tmp1[0] * at0 + tmp1[1] *at1;
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tmp2[0] += at0 * xp[i];
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tmp2[1] += at1 * xp[i];
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temp1 = tmp1[j2];
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temp2 = tmp2[j2];
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a0 = &a[j1*lda];
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for ( i=j ; i<j1; i++ )
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{
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yp[i] += temp1 * a0[i];
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temp2 += a0[i] * xp[i];
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}
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y[j1] += temp1 * a0[j1] + alpha * temp2;
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j2++;
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}
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at1 = a1[j];
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yp[j] += tmp1[1] * at1;
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tmp2[1] += at1 * xp[j];
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yp[j] += tmp1[0] * a0[j] + alpha * tmp2[0];
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yp[j+1] += tmp1[1] * a1[j+1] + alpha * tmp2[1];
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}
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for ( ; j<m; j++)
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@ -185,7 +249,7 @@ int CNAME(BLASLONG m, BLASLONG offset, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOA
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temp2 = 0.0;
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a0 = &a[j*lda];
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FLOAT at0;
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BLASLONG j1 = (j/8)*8;
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j1 = (j/8)*8;
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if ( j1 )
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ssymv_kernel_8x1(j1, a0, xp, yp, &temp1, &temp2);
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@ -0,0 +1,130 @@
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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_4x4 1
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static void ssymv_kernel_4x4( BLASLONG n, FLOAT *a0, FLOAT *a1, FLOAT *a2, FLOAT *a3, FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2) __attribute__ ((noinline));
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static void ssymv_kernel_4x4(BLASLONG n, FLOAT *a0, FLOAT *a1, FLOAT *a2, FLOAT *a3, FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2)
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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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"xorps %%xmm0 , %%xmm0 \n\t" // temp2[0]
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"xorps %%xmm1 , %%xmm1 \n\t" // temp2[1]
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"xorps %%xmm2 , %%xmm2 \n\t" // temp2[2]
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"xorps %%xmm3 , %%xmm3 \n\t" // temp2[3]
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"movss (%8), %%xmm4 \n\t" // temp1[0]
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"movss 4(%8), %%xmm5 \n\t" // temp1[1]
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"movss 8(%8), %%xmm6 \n\t" // temp1[2]
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"movss 12(%8), %%xmm7 \n\t" // temp1[3]
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"shufps $0, %%xmm4, %%xmm4 \n\t"
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"shufps $0, %%xmm5, %%xmm5 \n\t"
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"shufps $0, %%xmm6, %%xmm6 \n\t"
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"shufps $0, %%xmm7, %%xmm7 \n\t"
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"xorq %0,%0 \n\t"
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".align 16 \n\t"
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".L01LOOP%=: \n\t"
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"movups (%2,%0,4), %%xmm8 \n\t" // 4 * x
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"movups (%3,%0,4), %%xmm9 \n\t" // 4 * y
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"movups (%4,%0,4), %%xmm12 \n\t" // 4 * a
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"movups (%5,%0,4), %%xmm13 \n\t" // 4 * a
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"movups %%xmm12 , %%xmm11 \n\t"
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"mulps %%xmm4 , %%xmm11 \n\t" // temp1 * a
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"addps %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulps %%xmm8 , %%xmm12 \n\t" // a * x
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"addps %%xmm12 , %%xmm0 \n\t" // temp2 += x * a
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"movups (%6,%0,4), %%xmm14 \n\t" // 4 * a
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"movups (%7,%0,4), %%xmm15 \n\t" // 4 * a
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"movups %%xmm13 , %%xmm11 \n\t"
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"mulps %%xmm5 , %%xmm11 \n\t" // temp1 * a
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"addps %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulps %%xmm8 , %%xmm13 \n\t" // a * x
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"addps %%xmm13 , %%xmm1 \n\t" // temp2 += x * a
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"movups %%xmm14 , %%xmm11 \n\t"
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"mulps %%xmm6 , %%xmm11 \n\t" // temp1 * a
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"addps %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulps %%xmm8 , %%xmm14 \n\t" // a * x
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"addps %%xmm14 , %%xmm2 \n\t" // temp2 += x * a
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"movups %%xmm15 , %%xmm11 \n\t"
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"mulps %%xmm7 , %%xmm11 \n\t" // temp1 * a
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"addps %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulps %%xmm8 , %%xmm15 \n\t" // a * x
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"addps %%xmm15 , %%xmm3 \n\t" // temp2 += x * a
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"movups %%xmm9, (%3,%0,4) \n\t" // 4 * y
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"addq $4 , %0 \n\t"
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"subq $4 , %1 \n\t"
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"jnz .L01LOOP%= \n\t"
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"haddps %%xmm0, %%xmm0 \n\t"
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"haddps %%xmm1, %%xmm1 \n\t"
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"haddps %%xmm2, %%xmm2 \n\t"
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"haddps %%xmm3, %%xmm3 \n\t"
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"haddps %%xmm0, %%xmm0 \n\t"
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"haddps %%xmm1, %%xmm1 \n\t"
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"haddps %%xmm2, %%xmm2 \n\t"
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"haddps %%xmm3, %%xmm3 \n\t"
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"movss %%xmm0 , (%9) \n\t" // save temp2
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"movss %%xmm1 , 4(%9) \n\t" // save temp2
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"movss %%xmm2 , 8(%9) \n\t" // save temp2
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"movss %%xmm3 , 12(%9) \n\t" // save temp2
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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" (a0), // 4
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"r" (a1), // 5
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"r" (a2), // 6
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"r" (a3), // 7
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"r" (temp1), // 8
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"r" (temp2) // 9
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: "cc",
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"%xmm0", "%xmm1", "%xmm2", "%xmm3",
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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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