Hi everybody, I am currently trying to read in a large (~300MB) .msh mesh-file by using the GridIn-workflow (described here <http://dealii.org/developer/doxygen/deal.II/step_49.html#grid_1Loadingameshgeneratedbygmsh> ). My triangulation is of type parallel::distributed::Triangulation. I then use four nodes (each with 64GB RAM and 40 processors) of a cluster, accordingly spawn 160 processes and try to do my computations. However while doing the ".read_msh()"-bit I get a PETSC-error I can't make sense of. What I get from one process is:
[0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger [0]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind [0]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors [0]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run [0]PETSC ERROR: to get more information on the crash. [0]PETSC ERROR: --------------------- Error Message -------------------------------------------------------------- [0]PETSC ERROR: Signal received [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting. [0]PETSC ERROR: Petsc Release Version 3.7.5, Jan, 01, 2017 [0]PETSC ERROR: Configure options --prefix=/home/woody/iwtm/iwtm002h/spack_dealii/spack/opt/spack/linux-centos7-x86_64/gcc-4.8.5/petsc-3.7.5-6itsodseoiu5dr5aizwji7ki42p7gg7y --with-ssl=0 --with-x=0 --download-c2$ [0]PETSC ERROR: #1 User provided function() line 0 in unknown file Could there be a problem with the needed memory? From what I read in a related question <https://groups.google.com/forum/#!searchin/dealii/gridin$20mpi|sort:relevance/dealii/T0jMUubZhbI/2nFpieJp3VAJ>, each process holds the coarsest mesh and since I don't refine the mesh any further, each process will hold the entire mesh/triangulation. Regards, Mathias -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
