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Merge pull request #2824 from martin-frbg/asumbench 

Use POSIX2001 clock.gettime in asum benchmark if available
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Martin Kroeker 2020-09-06 10:05:47 +02:00 committed by GitHub
parent ed0f2d3dd7 6f8fad87c5
commit 6e0f6c5f00
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1 changed files with 17 additions and 8 deletions
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25
benchmark/asum.c
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@ -128,8 +128,13 @@ int main(int argc, char *argv[]){
int to = 200; int to = 200;
int step = 1; int step = 1;
#if defined(__WIN32__) || defined(__WIN64__) || !defined(_POSIX_TIMERS)
struct timeval start, stop; struct timeval start, stop;
double time1,timeg; double time1,timeg;
#else
struct timespec start = { 0, 0 }, stop = { 0, 0 };
double time1, timeg;
#endif
argc--;argv++; argc--;argv++;
@ -160,26 +165,30 @@ int main(int argc, char *argv[]){
fprintf(stderr, " %6d : ", (int)m); fprintf(stderr, " %6d : ", (int)m);
for (l=0; l<loops; l++) for (l=0; l<loops; l++)
{ {
for(i = 0; i < m * COMPSIZE * abs(inc_x); i++){ for(i = 0; i < m * COMPSIZE * abs(inc_x); i++){
x[i] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5; x[i] = ((FLOAT) rand() / (FLOAT) RAND_MAX) - 0.5;
} }
#if defined(__WIN32__) || defined(__WIN64__) || !defined(_POSIX_TIMERS)
gettimeofday( &start, (struct timezone *)0); gettimeofday( &start, (struct timezone *)0);
#else
clock_gettime(CLOCK_REALTIME, &start);
#endif
result = ASUM (&m, x, &inc_x); result = ASUM (&m, x, &inc_x);
#if defined(__WIN32__) || defined(__WIN64__) || !defined(_POSIX_TIMERS)
gettimeofday( &stop, (struct timezone *)0); clock_gettime(CLOCK_REALTIME, &stop);
time1 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_usec - start.tv_usec)) * 1.e-6;
time1 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_usec - start.tv_usec)) * 1.e-6; #else
gettimeofday( &stop, (struct timezone *)0);
time1 = (double)(stop.tv_sec - start.tv_sec) + (double)((stop.tv_nsec - start.tv_nsec)) / 1.e9;
#endif
timeg += time1; timeg += time1;
} }
if (loops >1)
timeg /= loops; timeg /= loops;
#ifdef COMPLEX #ifdef COMPLEX