Hi all, As in my last help request, I'm using gfortran 4.2.1 from Ubuntu Gutsy's apt-get, with the patch from bug 28482 ( http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28482 ) applied so that I can dlopen libgomp. I find that the performance of my subroutines varies greatly if I reload libgomp, but if I rerun the subroutines several times for the same load of libgomp performance is fairly constant. Other information that may be relevant: - The number of threads stays the same (I have OMP_DYNAMIC=False). - The relative speedup from OpenMP (wall time / CPU time) stays relatively constant. I don't even know where to start looking for the source of this behavior. Any tips? Thanks, Anand Patil
