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