274 lines
7.9 KiB
C
274 lines
7.9 KiB
C
/*********************************************************************/
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/* Copyright 2009, 2010 The University of Texas at Austin. */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or */
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/* without modification, are permitted provided that the following */
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/* conditions are met: */
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/* */
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/* 1. Redistributions of source code must retain the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer. */
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/* */
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/* 2. Redistributions in binary form must reproduce the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer in the documentation and/or other materials */
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/* provided with the distribution. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
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/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
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/* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
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/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
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/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
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/* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
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/* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
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/* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
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/* POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/* The views and conclusions contained in the software and */
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/* documentation are those of the authors and should not be */
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/* interpreted as representing official policies, either expressed */
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/* or implied, of The University of Texas at Austin. */
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/*********************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef __CYGWIN32__
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#include <sys/time.h>
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#endif
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#include "common.h"
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double fabs(double);
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#undef GETRF
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#undef GETRS
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#ifndef COMPLEX
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#ifdef XDOUBLE
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#define GETRF BLASFUNC(qgetrf)
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#define GETRS BLASFUNC(qgetrs)
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#elif defined(DOUBLE)
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#define GETRF BLASFUNC(dgetrf)
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#define GETRS BLASFUNC(dgetrs)
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#else
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#define GETRF BLASFUNC(sgetrf)
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#define GETRS BLASFUNC(sgetrs)
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#endif
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#else
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#ifdef XDOUBLE
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#define GETRF BLASFUNC(xgetrf)
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#define GETRS BLASFUNC(xgetrs)
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#elif defined(DOUBLE)
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#define GETRF BLASFUNC(zgetrf)
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#define GETRS BLASFUNC(zgetrs)
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#else
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#define GETRF BLASFUNC(cgetrf)
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#define GETRS BLASFUNC(cgetrs)
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#endif
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#endif
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#if defined(__WIN32__) || defined(__WIN64__)
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#ifndef DELTA_EPOCH_IN_MICROSECS
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#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
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#endif
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int gettimeofday(struct timeval *tv, void *tz){
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FILETIME ft;
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unsigned __int64 tmpres = 0;
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static int tzflag;
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if (NULL != tv)
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{
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GetSystemTimeAsFileTime(&ft);
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tmpres |= ft.dwHighDateTime;
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tmpres <<= 32;
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tmpres |= ft.dwLowDateTime;
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/*converting file time to unix epoch*/
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tmpres /= 10; /*convert into microseconds*/
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tmpres -= DELTA_EPOCH_IN_MICROSECS;
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tv->tv_sec = (long)(tmpres / 1000000UL);
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tv->tv_usec = (long)(tmpres % 1000000UL);
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}
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return 0;
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}
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#endif
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#if !defined(__WIN32__) && !defined(__WIN64__) && !defined(__CYGWIN32__) && 0
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static void *huge_malloc(BLASLONG size){
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int shmid;
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void *address;
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#ifndef SHM_HUGETLB
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#define SHM_HUGETLB 04000
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#endif
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if ((shmid =shmget(IPC_PRIVATE,
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(size + HUGE_PAGESIZE) & ~(HUGE_PAGESIZE - 1),
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SHM_HUGETLB | IPC_CREAT |0600)) < 0) {
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printf( "Memory allocation failed(shmget).\n");
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exit(1);
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}
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address = shmat(shmid, NULL, SHM_RND);
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if ((BLASLONG)address == -1){
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printf( "Memory allocation failed(shmat).\n");
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exit(1);
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}
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shmctl(shmid, IPC_RMID, 0);
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return address;
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}
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#define malloc huge_malloc
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#endif
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int MAIN__(int argc, char *argv[]){
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FLOAT *a, *b;
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blasint *ipiv;
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blasint m, i, j, info;
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blasint unit = 1;
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int from = 1;
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int to = 200;
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int step = 1;
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FLOAT maxerr;
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struct timeval start, stop;
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double time1, time2;
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argc--;argv++;
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if (argc > 0) { from = atol(*argv); argc--; argv++;}
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if (argc > 0) { to = MAX(atol(*argv), from); argc--; argv++;}
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if (argc > 0) { step = atol(*argv); argc--; argv++;}
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fprintf(stderr, "From : %3d To : %3d Step = %3d\n", from, to, step);
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if (( a = (FLOAT *)malloc(sizeof(FLOAT) * to * to * COMPSIZE)) == NULL){
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fprintf(stderr,"Out of Memory!!\n");exit(1);
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}
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if (( b = (FLOAT *)malloc(sizeof(FLOAT) * to * COMPSIZE)) == NULL){
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fprintf(stderr,"Out of Memory!!\n");exit(1);
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}
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if (( ipiv = (blasint *)malloc(sizeof(blasint) * to * COMPSIZE)) == NULL){
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fprintf(stderr,"Out of Memory!!\n");exit(1);
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}
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#ifdef linux
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srandom(getpid());
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#endif
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fprintf(stderr, " SIZE Residual Decompose Solve Total\n");
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for(m = from; m <= to; m += step){
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fprintf(stderr, " %6d : ", (int)m);
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for(j = 0; j < m; j++){
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for(i = 0; i < m * COMPSIZE; i++){
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a[i + j * m * COMPSIZE] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
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}
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}
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for (i = 0; i < m * COMPSIZE; ++i) b[i] = 0.;
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for (j = 0; j < m; ++j) {
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for (i = 0; i < m * COMPSIZE; ++i) {
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b[i] += a[i + j * m * COMPSIZE];
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}
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}
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gettimeofday( &start, (struct timezone *)0);
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GETRF (&m, &m, a, &m, ipiv, &info);
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gettimeofday( &stop, (struct timezone *)0);
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if (info) {
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fprintf(stderr, "Matrix is not singular .. %d\n", info);
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exit(1);
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}
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time1 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_usec - start.tv_usec)) * 1.e-6;
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gettimeofday( &start, (struct timezone *)0);
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GETRS("N", &m, &unit, a, &m, ipiv, b, &m, &info);
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gettimeofday( &stop, (struct timezone *)0);
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if (info) {
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fprintf(stderr, "Matrix is not singular .. %d\n", info);
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exit(1);
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}
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time2 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_usec - start.tv_usec)) * 1.e-6;
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maxerr = 0.;
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for(i = 0; i < m; i++){
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#ifndef XDOUBLE
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if (maxerr < fabs(b[i * COMPSIZE] - 1.0)) maxerr = fabs(b[i * COMPSIZE] - 1.0);
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#ifdef COMPLEX
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if (maxerr < fabs(b[i * COMPSIZE] + 1)) maxerr = fabs(b[i * COMPSIZE + 1]);
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#endif
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#else
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if (maxerr < fabsl(b[i * COMPSIZE] - 1.0L)) maxerr = fabsl(b[i * COMPSIZE] - 1.0L);
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#ifdef COMPLEX
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if (maxerr < fabsl(b[i * COMPSIZE] + 1)) maxerr = fabsl(b[i * COMPSIZE + 1]);
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#endif
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#endif
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}
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#ifdef XDOUBLE
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fprintf(stderr," %Le ", maxerr);
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#else
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fprintf(stderr," %e ", maxerr);
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#endif
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fprintf(stderr,
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" %10.2f MFlops %10.2f MFlops %10.2f MFlops\n",
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COMPSIZE * COMPSIZE * 2. / 3. * (double)m * (double)m * (double)m / time1 * 1.e-6,
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COMPSIZE * COMPSIZE * 2. * (double)m * (double)m / time2 * 1.e-6,
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COMPSIZE * COMPSIZE * (2. / 3. * (double)m * (double)m * (double)m + 2. * (double)m * (double)m) / (time1 + time2) * 1.e-6);
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#if 0
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if (
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#ifdef DOUBLE
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maxerr > 1.e-8
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#else
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maxerr > 1.e-1
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#endif
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) {
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fprintf(stderr, "Error is too large.\n");
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exit(1);
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}
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#endif
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}
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return 0;
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}
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void main(int argc, char *argv[]) __attribute__((weak, alias("MAIN__")));
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