With a recent trunk ( 4.3.0 20071231 (experimental) (GCC) ), I tried compiling the following program:
#include <vector> #include <algorithm> using namespace std; int main(void) { vector<vector<int> > v(100000); std::sort(v.begin(), v.end()); } With: /usr/gccsvn/bin/g++-svn temp.cc -g -W -D_GLIBCXX_PARALLEL -fopenmp -march=native The resulting program generates a 'non-aligned pointer being freed' error in: __gnu_parallel::parallel_sort_mwms_pu<__gnu_cxx::__normal_iterator<std::__cxx1998::vector<int, std::allocator<int> >*, std::__cxx1998::vector<std::__cxx1998::vector<int, std::allocator<int> >, std::allocator<std::__cxx1998::vector<int, std::allocator<int> > > > >, std::less<std::__cxx1998::vector<int, std::allocator<int> > > > () This could be some flaw in the way I have built things, but I can't find any problems as of yet. -- Summary: Parallel sort fails on darwin Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: chris at bubblescope dot net GCC target triplet: i386-apple-darwin9.1.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34636