WCudaMSE/Student_OMP/src/cpp/core/omp/01_hello/01_helloOMP.cpp

   1 #include <iostream>
   2 #include <stdio.h>
   3 #include "omp.h"
   4 #include "OmpTools.h"
   5
   6 using std::cout;
   7 using std::endl;
   8
   9 /*----------------------------------------------------------------------*\
  10  |*                     Implementation                                  *|
  11  \*---------------------------------------------------------------------*/
  12
  13 /*--------------------------------------*\
  14  |*             Public                  *|
  15  \*-------------------------------------*/
  16
  17 void helloOMP1(void)
  18     {
  19     cout << endl << "[HelloOMP 1]" << endl;
  20
  21     // OMP (facultatif)
  22     const int NB_THREADS = OmpTools::setAndGetNaturalGranularity();
  23     cout << "\n[HELLO] nbThread = " << NB_THREADS << endl;
  24
  25 #pragma omp parallel
  26         {
  27         int tid = OmpTools::getTid();
  28
  29         //cout << "tid=" << tid << endl; // ligne couper
  30         printf("tid=%i\n", tid); //ligne non couper
  31         }
  32     }
  33
  34 void helloOMP2(void)
  35     {
  36     cout << endl << "[HelloOMP 2]" << endl;
  37
  38     // OMP (facultatif)
  39     const int NB_THREADS = OmpTools::setAndGetNaturalGranularity();
  40     cout << "\n[CBI] nbThread = " << NB_THREADS << endl;
  41
  42     int n = 20;
  43 #pragma omp parallel for
  44     for (int i = 1; i <= n; i++)
  45         {
  46         //cout << "HelloOMP(" << i << ")" << endl; // ligne couper
  47         printf("HelloOMP(%i)\n", i); // ligne non couper
  48         }
  49     }
  50
  51 /*--------------------------------------*\
  52  |*             Private                 *|
  53  \*-------------------------------------*/
  54
  55 /*----------------------------------------------------------------------*\
  56  |*                     End                                             *|
  57  \*---------------------------------------------------------------------*/
  58