On Tue, 10 Jul 2018, Boris Boutkov wrote:
Oh, that's unfortunate. I've uploaded the logs in question to a public google drive folder, they should be available for download at : https://drive.google.com/drive/u/1/folders/1-FqKx9FhtSgRAttGVW-4cYNUfzehbpTz
The PerfLog in intro_ex3.log says 97.66% of your time is being spent in PetscLinearSolver::solve(). What exactly are you trying to profile here? There's not even any time spent within PerfLog'ed subroutines called from within solve(), so you can't be doing a multigrid sweep here, can you? If you're not compiling PETSc with -pg that would explain where 97.66% of your runtime vanished in the gprof output, but I don't see why 99% of your *call graph* seems to have vanished. That gprof.log looks as if you linked a METHOD=prof compiled example against a METHOD=opt compiled libMesh somehow. --- Roy ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
