204 lines
4.3 KiB
C
204 lines
4.3 KiB
C
/***************************************************************************
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Copyright (c) 2013-2016, 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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/**************************************************************************************
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* 2016/03/25 Werner Saar (wernsaar@googlemail.com)
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* BLASTEST : OK
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* CTEST : OK
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* TEST : OK
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* LAPACK-TEST : OK
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**************************************************************************************/
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#include "common.h"
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#if defined(__VEC__) || defined(__ALTIVEC__)
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#if defined(POWER8) || defined(POWER9)
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#include "dscal_microk_power8.c"
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#elif defined(POWER10)
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#include "dscal_microk_power10.c"
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#endif
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#endif
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#if !defined(HAVE_KERNEL_8)
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static void dscal_kernel_8 (BLASLONG n, FLOAT *x, FLOAT alpha)
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{
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BLASLONG i;
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for( i=0; i<n; i+=8 )
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{
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x[0] *= alpha;
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x[1] *= alpha;
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x[2] *= alpha;
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x[3] *= alpha;
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x[4] *= alpha;
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x[5] *= alpha;
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x[6] *= alpha;
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x[7] *= alpha;
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x+=8;
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}
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}
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static void dscal_kernel_8_zero (BLASLONG n, FLOAT *x)
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{
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BLASLONG i;
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FLOAT alpha=0.0;
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for( i=0; i<n; i+=8 )
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{
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x[0] = alpha;
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x[1] = alpha;
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x[2] = alpha;
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x[3] = alpha;
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x[4] = alpha;
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x[5] = alpha;
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x[6] = alpha;
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x[7] = alpha;
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x+=8;
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}
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}
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#endif
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i=0,j=0;
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if ( n <= 0 || inc_x <=0 )
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return(0);
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if ( inc_x == 1 )
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{
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if ( da == 0.0 )
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{
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#if defined(POWER10)
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if ( n >= 16 )
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{
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BLASLONG align = ((32 - ((uintptr_t)x & (uintptr_t)0x1F)) >> 3) & 0x3;
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for (j = 0; j < align; j++) {
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x[j] = 0.0;
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}
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}
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BLASLONG n1 = (n-j) & -16;
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if ( n1 > 0 )
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{
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dscal_kernel_8_zero(n1, &x[j]);
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j+=n1;
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}
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#else
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BLASLONG n1 = n & -16;
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if ( n1 > 0 )
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{
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dscal_kernel_8_zero(n1, x);
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j=n1;
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}
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#endif
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while(j < n)
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{
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x[j]=0.0;
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j++;
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}
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}
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else
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{
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#if defined(POWER10)
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if ( n >= 16 )
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{
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BLASLONG align = ((32 - ((uintptr_t)x & (uintptr_t)0x1F)) >> 3) & 0x3;
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for (j = 0; j < align; j++) {
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x[j] = da * x[j];
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}
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}
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BLASLONG n1 = (n-j) & -16;
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if ( n1 > 0 )
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{
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dscal_kernel_8(n1, &x[j], da);
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j+=n1;
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}
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#else
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BLASLONG n1 = n & -16;
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if ( n1 > 0 )
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{
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dscal_kernel_8(n1, x, da);
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j=n1;
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}
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#endif
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while(j < n)
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{
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x[j] = da * x[j] ;
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j++;
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}
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}
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}
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else
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{
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if ( da == 0.0 )
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{
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while(j < n)
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{
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x[i]=0.0;
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i += inc_x ;
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j++;
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}
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}
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else
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{
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while(j < n)
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{
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x[i] = da * x[i] ;
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i += inc_x ;
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j++;
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}
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}
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}
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return 0;
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}
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