http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54865
Bug #: 54865 Summary: [parallel mode] tests timeout on power64 Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: r...@gcc.gnu.org Host: powerpc64-unknown-linux-gnu Target: powerpc64-unknown-linux-gnu Build: powerpc64-unknown-linux-gnu FAIL: 25_algorithms/copy/deque_iterators/1.cc execution test FAIL: 25_algorithms/copy_backward/deque_iterators/1.cc execution test FAIL: 25_algorithms/move/deque_iterators/1.cc execution test FAIL: 25_algorithms/move_backward/deque_iterators/1.cc execution test On gcc110, a 64 processor ppc64 box, the first one completes in 0.23s when built single-threaded with -O2, but when built with parallel mode and -O2 it still doesn't complete after 93m40s cpu time. Maybe there's something buggy about libgomp on ppc64, or maybe the libstdc++ parallel mode just doesn't scale to lots of processors.