-Mconcur still doesn't work correctly

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

Last August I reported a bug with the compiler option -Mconcur, using the PGI fortran 90 compiler for Linux. It was recognized as a compiler bug and given the number TPR3332.

After two compiler updates, this bug is still present.

I think Portland Group should stop advertising auto-parallelization until this bug is fixed. You just can’t trust it (the bug results in wrong numerical answers, not a crash, so may not be recognized).

At the least users should be advised to compare results with and without.

2

Hi Russell,

We do apologize for the delay in getting the fix for this bug into a release compiler. We do strive to have bugs fixed in a more timely manner, but in a few cases we are unable. The good news is that the fix is scheduled to be included with the 6.1 release.

Best Regards,
Mat