IY37699: "LOOP IS NOT COUNTABLE" BUT #PRAGMA OMP PARALLEL FOR ACCEPTS IT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The customer sent a testcase:
  -----------------------------
  #include <iostream.h>
  #include <omp.h>
  int main()
  {
    omp_lock_t l;
    int i,j;
    i=10;
    omp_init_lock(&l);
    #pragma omp parallel
    {
      #pragma omp for
      for (j=0; j<i;j++)
      {
        int tid;
        tid=omp_get_thread_num();
        omp_set_lock(&l);
        cerr << "j=" <<j << ", tid=" << tid << endl;
        omp_unset_lock(&l);
      }
    }
  }
  When compiling: xlC_r test.cpp -qsmp=omp, we get a warning
  message"test.cpp", line 13: 1586-352 (W) Loop is not countable.
  Loop not parallelized"
  I noticed if we combine the two pragmas with #pragma omp
  parallel for, the compiler doesn't issue a warning message.
  Error was reproduced on V6 latest which ipa is 021126
  

Local fix

Problem summary

•  same as submitter's text
  

Problem conclusion

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

  VA C++ PROF FOR

• Fixed component ID

  5765F5600

Applicable component levels

• R600 PSN U811609

     UP07/04/30 I 1000

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.