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OpenBLAS/interface/zger.c
Martin Kroeker 2c222f1faa Modify complex CBLAS functions to take void pointers 
Modify complex CBLAS functions to take void pointers instead of float or double arguments (to bring the prototypes in line with netlib and other implementations' cblas.h)
2017-11-05 15:53:14 +01:00

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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
#ifdef SMP
#ifdef __64BIT__
#define SMPTEST 1
#endif
#endif
#ifdef XDOUBLE
#ifndef CONJ
#define ERROR_NAME "XGERU "
#else
#define ERROR_NAME "XGERC "
#endif
#elif defined DOUBLE
#ifndef CONJ
#define ERROR_NAME "ZGERU "
#else
#define ERROR_NAME "ZGERC "
#endif
#else
#ifndef CONJ
#define ERROR_NAME "CGERU "
#else
#define ERROR_NAME "CGERC "
#endif
#endif
#if defined XDOUBLE
#ifndef CONJ
#define GER GERU_K
#define GER_THREAD xger_thread_U
#else
#define GER GERC_K
#define GER_THREAD xger_thread_C
#define GERV GERV_K
#define GERV_THREAD xger_thread_V
#endif
#elif defined DOUBLE
#ifndef CONJ
#define GER GERU_K
#define GER_THREAD zger_thread_U
#else
#define GER GERC_K
#define GER_THREAD zger_thread_C
#define GERV GERV_K
#define GERV_THREAD zger_thread_V
#endif
#else
#ifndef CONJ
#define GER GERU_K
#define GER_THREAD cger_thread_U
#else
#define GER GERC_K
#define GER_THREAD cger_thread_C
#define GERV GERV_K
#define GERV_THREAD cger_thread_V
#endif
#endif
#ifndef CBLAS
void NAME(blasint *M, blasint *N, FLOAT *Alpha,
FLOAT *x, blasint *INCX,
FLOAT *y, blasint *INCY,
FLOAT *a, blasint *LDA){
blasint m = *M;
blasint n = *N;
FLOAT alpha_r = Alpha[0];
FLOAT alpha_i = Alpha[1];
blasint incx = *INCX;
blasint incy = *INCY;
blasint lda = *LDA;
FLOAT *buffer;
#ifdef SMPTEST
int nthreads;
#endif
blasint info;
PRINT_DEBUG_NAME;
info = 0;
if (lda < MAX(1,m)) info = 9;
if (incy == 0) info = 7;
if (incx == 0) info = 5;
if (n < 0) info = 2;
if (m < 0) info = 1;
if (info){
BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
return;
}
#else
void CNAME(enum CBLAS_ORDER order,
blasint m, blasint n,
void *VAlpha,
void *vx, blasint incx,
void *vy, blasint incy,
void *va, blasint lda) {
FLOAT* Alpha = (FLOAT*) VAlpha;
FLOAT* a = (FLOAT*) va;
FLOAT* x = (FLOAT*) vx;
FLOAT* y = (FLOAT*) vy;
FLOAT alpha_r = Alpha[0];
FLOAT alpha_i = Alpha[1];
FLOAT *buffer;
blasint info, t;
#ifdef SMPTEST
int nthreads;
#endif
PRINT_DEBUG_CNAME;
info = 0;
if (order == CblasColMajor) {
info = -1;
if (lda < MAX(1,m)) info = 9;
if (incy == 0) info = 7;
if (incx == 0) info = 5;
if (n < 0) info = 2;
if (m < 0) info = 1;
}
if (order == CblasRowMajor) {
info = -1;
t = n;
n = m;
m = t;
t = incx;
incx = incy;
incy = t;
buffer = x;
x = y;
y = buffer;
if (lda < MAX(1,m)) info = 9;
if (incy == 0) info = 7;
if (incx == 0) info = 5;
if (n < 0) info = 2;
if (m < 0) info = 1;
}
if (info >= 0) {
BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
return;
}
#endif
/* Quick return if possible. */
if (m == 0 || n == 0) return;
if ((alpha_r == 0.) && (alpha_i == 0.)) return;
IDEBUG_START;
FUNCTION_PROFILE_START();
if (incy < 0) y -= (n - 1) * incy * 2;
if (incx < 0) x -= (m - 1) * incx * 2;
STACK_ALLOC(2 * m, FLOAT, buffer);
#ifdef SMPTEST
// Threshold chosen so that speed-up is > 1 on a Xeon E5-2630
if(1L * m * n > 36L * sizeof(FLOAT) * sizeof(FLOAT) * GEMM_MULTITHREAD_THRESHOLD)
nthreads = num_cpu_avail(2);
else
nthreads = 1;
if (nthreads == 1) {
#endif
#if !defined(CBLAS) || !defined(CONJ)
GER(m, n, 0, alpha_r, alpha_i, x, incx, y, incy, a, lda, buffer);
#else
if (order == CblasColMajor) {
GER(m, n, 0, alpha_r, alpha_i, x, incx, y, incy, a, lda, buffer);
} else {
GERV(m, n, 0, alpha_r, alpha_i, x, incx, y, incy, a, lda, buffer);
}
#endif
#ifdef SMPTEST
} else {
#if !defined(CBLAS) || !defined(CONJ)
GER_THREAD(m, n, Alpha, x, incx, y, incy, a, lda, buffer, nthreads);
#else
if (order == CblasColMajor) {
GER_THREAD(m, n, Alpha, x, incx, y, incy, a, lda, buffer, nthreads);
} else {
GERV_THREAD(m, n, Alpha, x, incx, y, incy, a, lda, buffer, nthreads);
}
#endif
}
#endif
STACK_FREE(buffer);
FUNCTION_PROFILE_END(4, m * n + m + n, 2 * m * n);
IDEBUG_END;
return;
}
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