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// RUN: %libomp-compile-and-run
/*
* Test for dynamic scheduling with chunk size
* Method: caculate how many times the iteration space is dispatched
* and judge if each dispatch has the requested chunk size
* unless it is the last one.
* It is possible for two adjacent chunks are assigned to the same thread
* Modified by Chunhua Liao
*/
#include <stdio.h>
#include <omp.h>
#include <stdlib.h>
#include "omp_testsuite.h"
#define CFDMAX_SIZE 100
const int chunk_size = 7;
int test_omp_for_schedule_dynamic()
{
int tid;
int *tids;
int i;
int tidsArray[CFDMAX_SIZE];
int count = 0;
int tmp_count = 0; /*dispatch times*/
int *tmp; /*store chunk size for each dispatch*/
int result = 0;
tids = tidsArray;
#pragma omp parallel private(tid) shared(tids)
{ /* begin of parallel */
int tid;
tid = omp_get_thread_num ();
#pragma omp for schedule(dynamic,chunk_size)
for (i = 0; i < CFDMAX_SIZE; i++) {
tids[i] = tid;
}
}
for (i = 0; i < CFDMAX_SIZE - 1; ++i) {
if (tids[i] != tids[i + 1]) {
count++;
}
}
tmp = (int *) malloc (sizeof (int) * (count + 1));
tmp[0] = 1;
for (i = 0; i < CFDMAX_SIZE - 1; ++i) {
if (tmp_count > count) {
printf ("--------------------\nTestinternal Error: List too small!!!\n--------------------\n"); /* Error handling */
break;
}
if (tids[i] != tids[i + 1]) {
tmp_count++;
tmp[tmp_count] = 1;
} else {
tmp[tmp_count]++;
}
}
/* is dynamic statement working? */
for (i = 0; i < count; i++) {
if ((tmp[i]%chunk_size)!=0) {
/* it is possible for 2 adjacent chunks assigned to a same thread */
result++;
fprintf(stderr,"The intermediate dispatch has wrong chunksize.\n");
/* result += ((tmp[i] / chunk_size) - 1); */
}
}
if ((tmp[count]%chunk_size)!=(CFDMAX_SIZE%chunk_size)) {
result++;
fprintf(stderr,"the last dispatch has wrong chunksize.\n");
}
/* for (int i=0;i<count+1;++i) printf("%d\t:=\t%d\n",i+1,tmp[i]); */
return (result==0);
}
int main()
{
int i;
int num_failed=0;
for(i = 0; i < REPETITIONS; i++) {
if(!test_omp_for_schedule_dynamic()) {
num_failed++;
}
}
return num_failed;
}
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