LI82404: OMP_IS_INITIAL_DEVICE() NOT DEFINED IN OMP.H SHIPPED WITH XLSMP

APAR status

• Closed as program error.

Error description

• When compiling with the omp.h shipped with IBM XLSMP and making
  use of the omp_is_initial_device(), clients get a 'Undefined
  reference to 'omp_is_initial_device' error.
  
  
  =====TESTCASE:
  $ cat testcode.cc
  #include <omp.h>
  
  int main(int argc, char* argv[])
  {
      int gpu_id = 0;
      /* Pick GPU to use */
      omp_set_default_device(gpu_id);
  
  
  
      int runningOnGPU = 0;
  
  
  #pragma omp target map(from:runningOnGPU)
      {
          if (omp_is_initial_device() == 0)
              runningOnGPU = 1;
      }
  
      return(0);
  }
  $
  
  ===== ACTUAL OUTPUT:
  Undefined reference to 'omp_is_initial_device' in
  <my_pgm>.cubin
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Users compiling with omp.h might be affected by this issue.
  
  PROBLEM DESCRIPTION:
  The omp_is_initial_device() was not defined in omp.h.
  

Problem conclusion

• The missing omp_is_initial_device() was added to the omp.h
  shipped with IBM XLSMP
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL C/C++ LINUX

• Fixed component ID

  5725C7310

Applicable component levels