Test which checks the omp parallel for reduction directive with all its options.
2.0
omp parallel for reduction
#include
#include
#include "omp_testsuite.h"
int omp_parallel_for_reduction(FILE * logFile){
int sum;
int known_sum;
double dsum;
double dknown_sum;
double dt=0.5; /* base of geometric row for + and - test*/
double rounding_error= 1.E-9;
#define DOUBLE_DIGITS 20 /* dt^DOUBLE_DIGITS */
int diff;
double ddiff;
int product;
int known_product;
#define MAX_FACTOR 10
#define KNOWN_PRODUCT 3628800 /* 10! */
int logic_and;
int logic_or;
int bit_and;
int bit_or;
int exclusiv_bit_or;
int logics[LOOPCOUNT];
int i;
double dpt;
int result;
sum =0;
dsum=0;
dt = 1./3.;
result = 0;
product = 1;
logic_and=1;
logic_or=0;
bit_and=1;
bit_or=0;
exclusiv_bit_or=0;
known_sum = (LOOPCOUNT*(LOOPCOUNT+1))/2;
#pragma omp parallel for schedule(dynamic,1) private(i) reduction(+:sum)
for (i=1;i<=LOOPCOUNT;i++)
{
sum=sum+i;
}
if(known_sum!=sum)
{
result++;
fprintf(logFile,"Error in sum with integers: Result was %d instead of %d\n",sum,known_sum);
}
diff = (LOOPCOUNT*(LOOPCOUNT+1))/2;
#pragma omp parallel for schedule(dynamic,1) private(i) reduction(-:diff)
for (i=1;i<=LOOPCOUNT;++i)
{
diff=diff-i;
}
if(diff != 0)
{
result++;
fprintf(logFile,"Error in difference with integers: Result was %d instead of 0.\n",diff);
}
/* Tests for doubles */
dsum=0;
dpt=1;
for (i=0;ireduction(+:dsum)
for (i=0;i rounding_error )
{
result++;
fprintf(logFile,"Error in sum with doubles: Result was %f instead of %f (Difference: %E)\n",dsum,dknown_sum, dsum-dknown_sum);
}
dpt=1;
for (i=0;ireduction(-:ddiff)
for (i=0;i rounding_error)
{
result++;
fprintf(logFile,"Error in Difference with doubles: Result was %E instead of 0.0\n",ddiff);
}
#pragma omp parallel for schedule(dynamic,1) private(i) reduction(*:product)
for(i=1;i<=MAX_FACTOR;i++)
{
product *= i;
}
known_product = KNOWN_PRODUCT;
if(known_product != product)
{
result++;
fprintf(logFile,"Error in Product with integers: Result was %d instead of %d\n\n",product,known_product);
}
for(i=0;ireduction(&&:logic_and)
for(i=0;ireduction(&&:logic_and)
for(i=0;ireduction(||:logic_or)
for(i=0;ireduction(||:logic_or)
for(i=0;ireduction(&:bit_and)
for(i=0;ireduction(&:bit_and)
for(i=0;ireduction(|:bit_or)
for(i=0;ireduction(|:bit_or)
for(i=0;ireduction(^:exclusiv_bit_or)
for(i=0;ireduction(^:exclusiv_bit_or)
for(i=0;i
/*printf("\nResult:%d\n",result);*/
return (result==0);
}