OK, just to answer the question: If you are running with petsc you should not call
dealii::Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, dealii::numbers::invalid_unsigned_int); since this will invoke threading if you start a number of mpi processes that is not equal the number of cores you use. Instead one should pass (when using generic linear algebra) #ifdef USE_PETSC_LA dealii::Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, /* disable threading for petsc */ 1); #else dealii::Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, dealii::numbers::invalid_unsigned_int); #endif I guess that was the bug. Best, Konrad -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/628d94ee-9e38-4dfd-b0b7-0a84d7b832ac%40googlegroups.com.
