#include int main(int argc, char *argv[]) { int i, thread_id; int glob_nloops, priv_nloops; glob_nloops = 0; /

[answerhappygod]

#include <stdio.h>
int main(int
argc, char *argv[])
{
int i, thread_id;
int glob_nloops,
priv_nloops;
glob_nloops = 0;
// parallelize this code
…………………………
#pragma omp parallel private(priv_nloops, thread_id)
{
priv_nloops = 0;
thread_id =
……………………………………?
// parallelize this
code
#pragma omp for
…………………………………………
for
(i=0; i<100000; ++i)
{
++priv_nloops;
}
// make this code
critical
#pragma omp critical
……………………………………
{
printf("Thread %d is adding its iterations (%d) to sum
(%d), ",
thread_id, priv_nloops, glob_nloops);
glob_nloops += priv_nloops;
printf(" total nloops is now %d.\n", glob_nloops);
}
}
printf("Total # loop iterations is %d\n",
glob_nloops);
return 0;
}
p=1
p=2
p=4
Speed up
(S)
1
Efficiency
(E)
100%