Threadprivate Static Class Member for C++

Threadprivate Static Class Member for C++ in OpenMP 3.0

In OpenMP 3.0, static class member variables may appear in a threadprivate directive. See Section 2.9.2 on p. 81 of the Specification.

Example (C++):

#include <omp.h>
#include <stdio.h>

class A
{
  public :
  static int tp;
  #pragma omp threadprivate(tp)

  A() { printf("constructor\n"); }
  ~A() { printf("destructor\n"); };
};

int A::tp;

void test()
{
  #pragma omp parallel
    {
        A::tp = omp_get_thread_num();
        printf("tp = %i\n", A::tp);
    }

}

int main()
{
  omp_set_dynamic(0);
  omp_set_num_threads(4);
  test();

  return 0;
}


% CC -xopenmp -xO3 test.cc
% a.out
tp = 0
tp = 2
tp = 3
tp = 1

OpenMP 3.0 Features in Express 7.08

Threadprivate Static Class Member for C++

Threadprivate Static Class Member for C++ in OpenMP 3.0

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