OMPThreads_inl.h

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// to ease automatic parsers
#include <agrum/agrum.h>
#include <agrum/core/OMPThreads.h>

namespace gum {

  INLINE bool isOMP() {
#ifdef _OPENMP
    return true;
#else
    return false;
#endif
  }

  INLINE void setNumberOfThreads(unsigned int number) {
#ifdef _OPENMP
    omp_set_num_threads(number);
#else
    GUM_ERROR(OperationNotAllowed,
              "openMP was not enabled at compilation (or "
              "you asked for 0 threads !)");
#endif
  }

  INLINE unsigned int getMaxNumberOfThreads() {
#ifdef _OPENMP
    return omp_get_max_threads();
#else
    return 1;
#endif
  }

  INLINE unsigned int getThreadNumber() {
#ifdef _OPENMP
    return omp_get_thread_num();
#else
    return 0;
#endif
  }

  INLINE unsigned int getNumberOfRunningThreads() {
#ifdef _OPENMP
    return omp_get_num_threads();
#else
    return 1;
#endif
  }

  INLINE unsigned int getNumberOfLogicalProcessors() {
#ifdef _OPENMP
    return omp_get_num_procs();
#else
    return 1;
#endif
  }

  INLINE void setNestedParallelism(bool value) {
#ifdef _OPENMP
    omp_set_nested(((value == true) ? 1 : 0));
#else
    GUM_ERROR(OperationNotAllowed,
              "openMP was not enabled at compilation (and you "
              "asked for nested parallelism !)");
#endif
  }

  INLINE bool getNestedParallelism() {
#ifdef _OPENMP
    return ((omp_get_nested() == 0) ? false : true);
#else
    return false;
#endif
  }

  INLINE void setDynamicThreadsNumber(bool value) {
#ifdef _OPENMP
    omp_set_dynamic(((value == true) ? 1 : 0));
#else
    GUM_ERROR(OperationNotAllowed,
              "openMP was not enabled at compilation (and you "
              "asked for dynamic adjustment of the number of "
              "threads !)");
#endif
  }

  INLINE bool getDynamicThreadsNumber() {
#ifdef _OPENMP
    return ((omp_get_dynamic() == 0) ? false : true);
#else
    return false;
#endif
  }

}   // namespace gum