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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 <ctype.h>
#include "common.h"
#ifdef FUNCTION_PROFILE
#include "functable.h"
#endif
#ifdef XDOUBLE
#define ERROR_NAME "QSPMV "
#elif defined(DOUBLE)
#define ERROR_NAME "DSPMV "
#else
#define ERROR_NAME "SSPMV "
#endif
static int (*spmv[])(BLASLONG, FLOAT, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, void *) = {
#ifdef XDOUBLE
qspmv_U, qspmv_L,
#elif defined(DOUBLE)
dspmv_U, dspmv_L,
#else
sspmv_U, sspmv_L,
#endif
};
#ifdef SMP
static int (*spmv_thread[])(BLASLONG, FLOAT, FLOAT *, FLOAT *, BLASLONG, FLOAT *, BLASLONG, FLOAT *, int) = {
#ifdef XDOUBLE
qspmv_thread_U, qspmv_thread_L,
#elif defined(DOUBLE)
dspmv_thread_U, dspmv_thread_L,
#else
sspmv_thread_U, sspmv_thread_L,
#endif
};
#endif
#ifndef CBLAS
void NAME(char *UPLO, blasint *N, FLOAT *ALPHA, FLOAT *a,
FLOAT *x, blasint *INCX, FLOAT *BETA, FLOAT *y, blasint *INCY){
char uplo_arg = *UPLO;
blasint n = *N;
FLOAT alpha = *ALPHA;
blasint incx = *INCX;
FLOAT beta = *BETA;
blasint incy = *INCY;
blasint info;
int uplo;
FLOAT *buffer;
#ifdef SMP
int nthreads;
#endif
PRINT_DEBUG_NAME;
TOUPPER(uplo_arg);
uplo = -1;
if (uplo_arg == 'U') uplo = 0;
if (uplo_arg == 'L') uplo = 1;
info = 0;
if (incy == 0) info = 9;
if (incx == 0) info = 6;
if (n < 0) info = 2;
if (uplo < 0) info = 1;
if (info != 0) {
BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
return;
}
#else
void CNAME(enum CBLAS_ORDER order,
enum CBLAS_UPLO Uplo,
blasint n,
FLOAT alpha,
FLOAT *a,
FLOAT *x, blasint incx,
FLOAT beta,
FLOAT *y, blasint incy){
FLOAT *buffer;
int uplo;
blasint info;
#ifdef SMP
int nthreads;
#endif
PRINT_DEBUG_CNAME;
uplo = -1;
info = 0;
if (order == CblasColMajor) {
if (Uplo == CblasUpper) uplo = 0;
if (Uplo == CblasLower) uplo = 1;
info = -1;
if (incy == 0) info = 9;
if (incx == 0) info = 6;
if (n < 0) info = 2;
if (uplo < 0) info = 1;
}
if (order == CblasRowMajor) {
if (Uplo == CblasUpper) uplo = 1;
if (Uplo == CblasLower) uplo = 0;
info = -1;
if (incy == 0) info = 9;
if (incx == 0) info = 6;
if (n < 0) info = 2;
if (uplo < 0) info = 1;
}
if (info >= 0) {
BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
return;
}
#endif
if (n == 0) return;
if (beta != ONE) SCAL_K(n, 0, 0, beta, y, abs(incy), NULL, 0, NULL, 0);
if (alpha == ZERO) return;
IDEBUG_START;
FUNCTION_PROFILE_START();
if (incx < 0 ) x -= (n - 1) * incx;
if (incy < 0 ) y -= (n - 1) * incy;
buffer = (FLOAT *)blas_memory_alloc(1);
#ifdef SMP
nthreads = num_cpu_avail(2);
if (nthreads == 1) {
#endif
(spmv[uplo])(n, alpha, a, x, incx, y, incy, buffer);
#ifdef SMP
} else {
(spmv_thread[uplo])(n, alpha, a, x, incx, y, incy, buffer, nthreads);
}
#endif
blas_memory_free(buffer);
FUNCTION_PROFILE_END(1, n * n / 2 + n, n * n);
IDEBUG_END;
return;
}
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