http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52303
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-19 18:01:58 UTC --- Preserving the threads after the parallel region finishes is basically required by the standard, as a new parallel region with the same number of threads needs to preserve threadprivate data. So even after a parallel region is left, your process is still multi-threaded.