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/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin. */
/* 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. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
/* AUSTIN ``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 UNIVERSITY OF TEXAS AT */
/* AUSTIN 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. */
/* */
/* The views and conclusions contained in the software and */
/* documentation are those of the authors and should not be */
/* interpreted as representing official policies, either expressed */
/* or implied, of The University of Texas at Austin. */
/*********************************************************************/
#include <stdio.h>
#include "common.h"
#ifdef FUNCTION_PROFILE
#include "functable.h"
#endif
#ifndef CBLAS
void NAME(blasint *N, FLOAT *ALPHA, FLOAT *x, blasint *INCX){
blasint n = *N;
blasint incx = *INCX;
FLOAT alpha = *ALPHA;
#else
void CNAME(blasint n, FLOAT alpha, FLOAT *x, blasint incx){
#endif
#ifdef SMP
int mode, nthreads;
#endif
#ifndef CBLAS
PRINT_DEBUG_NAME;
#else
PRINT_DEBUG_CNAME;
#endif
if (incx <= 0 || n <= 0) return;
if (alpha == ONE) return;
IDEBUG_START;
FUNCTION_PROFILE_START();
#ifdef SMP
if (n <= 1048576 )
nthreads = 1;
else
nthreads = num_cpu_avail(1);
if (nthreads == 1) {
#endif
SCAL_K(n, 0, 0, alpha, x, incx, NULL, 0, NULL, 0);
#ifdef SMP
} else {
#ifdef DOUBLE
mode = BLAS_DOUBLE | BLAS_REAL;
#else
mode = BLAS_SINGLE | BLAS_REAL;
#endif
blas_level1_thread(mode, n, 0, 0,
#ifndef CBLAS
ALPHA,
#else
&alpha,
#endif
x, incx, NULL, 0, NULL, 0, (void *)SCAL_K, nthreads);
}
#endif
FUNCTION_PROFILE_END(1, n, n);
IDEBUG_END;
return;
}
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