http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58642
--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to vincenzo Innocente from comment #26) > [innocent@olsnba04 parallel]$ ./affinity-1.exe | grep veri > > libgomp: Number of places reduced from 5 to 1 because some places didn't > contain any usable logical CPUs > > libgomp: None of the places contain usable logical CPUs > > libgomp: Invalid value for environment variable OMP_PLACES Ugh, none of these look expected. Can you cut'n'paste the OMP_PROC_BIND=... OMP_PLACES=... line from before some of these errors and see if you can reproduce it with running ./affinity-1.exe with those two env vars? Can you strace | grep affinity it? The == 8 to >= 8 change is already in the gomp-4_0-branch BTW.