[Bug libgomp/55691] New: Setting OMP_NESTED increases the runtime dramatically for GCC compiled executable

[geir at cray dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55691



             Bug #: 55691

           Summary: Setting OMP_NESTED increases the runtime dramatically

                    for GCC compiled executable

    Classification: Unclassified

           Product: gcc

           Version: 4.7.2

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: libgomp

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: g...@cray.com

                CC: ja...@gcc.gnu.org





The attached test case runs significantly slower when setting OMP_NESTED =

true, compared to setting OMP_NESTED.