52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
#ifndef SPLITSPECTRUM_COMMON_H
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#define SPLITSPECTRUM_COMMON_H
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#include <time.h>
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#include <sys/time.h>
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#include <omp.h>
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double getWallTime()
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{
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struct timeval time;
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if (gettimeofday(&time,NULL))
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{
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// Handle error
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return 0;
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}
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return (double)time.tv_sec + (double)time.tv_usec * .000001;
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}
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int numberOfThreads()
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{
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int nthreads = 0;
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#pragma omp parallel
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if (omp_get_thread_num() == 1)
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{
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nthreads = omp_get_num_threads();
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}
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std::cout << "Processing with " << nthreads << " threads \n";
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if (nthreads == 0)
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{
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std::cout << "Looks like the code was not linked with openmp. \n";
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std::cout << "Recompile with the right linker flags. \n";
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throw;
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}
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if (nthreads == 1)
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{
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std::cout << "This code has been designed to work with multiple threads. \n";
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std::cout << "Looks like sequential execution due to compilation or environment settings. \n";
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std::cout << "Check your settings for optimal performace. Continuing ... \n";
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}
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return nthreads;
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}
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#endif //SPLITSPECTRUM_COMMON_H
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