main
test-branch
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Last change
on this file since 8190175 was ea777aa, checked in by Alex Wilton <awilton@…>, 3 years ago |
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Moved examples, include, build_default.properties, common.xml, and README out from dev.civl.com into the root of the repo.
git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@5704 fb995dde-84ed-4084-dfe6-e5aef3e2452c
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Property mode
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100644
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File size:
465 bytes
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| 1 | #include <omp.h>
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| 2 | static long num_steps = 100000;
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| 3 | double step;
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| 4 | #define NUM_THREADS 2
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| 5 | void main ()
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| 6 | { int i; double x, sum, pi=0.0;
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| 7 | step = 1.0/(double) num_steps;
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| 8 | omp_set_num_threads(NUM_THREADS)
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| 9 | #pragma omp parallel private (x, sum)
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| 10 | {
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| 11 | id = omp_get_thread_num();
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| 12 | for (i=id,sum=0.0;i< num_steps;i=i+NUM_THREADS){
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| 13 | x = (i+0.5)*step;
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| 14 | sum += 4.0/(1.0+x*x);
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| 15 | }
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| 16 | #pragma omp critical
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| 17 | pi += sum
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| 18 | }
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| 19 | } |
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