> Thanks for your reply. I did install mpich_3.2-7_amd64.deb before. Why do you install a .deb manually? This is likely the reason for your problems.
You also didn't answer my question, do you have more than one MPI package installed? Please check "dpkg -l | grep mpi" and make sure you don't have any manual MPI install (or using homebrew/spack/etc.). -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
