openmp/{hello/src/hello.cpp → hello_w/src/hello_w.cpp} RENAMED
@@ -1,10 +1,17 @@
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  // Copyright 2021 Jeisson Hidalgo <jeisson.hidalgo@ucr.ac.cr> CC-BY 4.0
 
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  #include <iostream>
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- int main() {
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- #pragma omp parallel
 
 
 
 
 
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  {
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- #pragma omp critical
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- std::cout << "Hello from secondary thread" << std::endl;
 
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  }
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  }
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  // Copyright 2021 Jeisson Hidalgo <jeisson.hidalgo@ucr.ac.cr> CC-BY 4.0
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+ #include <omp.h>
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  #include <iostream>
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+ int main(int argc, char* argv[]) {
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+ int thread_count = omp_get_max_threads();
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+ if (argc == 2) {
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+ thread_count = atoi(argv[1]);
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+ }
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+
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+ #pragma omp parallel num_threads(thread_count)
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  {
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+ #pragma omp critical(stdout)
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+ std::cout << "Hello from secondary thread " << omp_get_thread_num()
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+ << " of " << omp_get_num_threads() << std::endl;
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  }
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  }