I put this at the end of the main function in systems_of_equations_ex6: ExodusII_IO exo_io(mesh); exo_io.write_timestep("test.exo", equation_systems, 0, 0.); exo_io.write_element_data(equation_systems); and I got this error: Error writing nodal values. Stack frames: 9 0: libMesh::print_trace(std::ostream&) 1: libMesh::MacroFunctions::report_error(char const*, int, char const*, char const*) 2: libMesh::ExodusII_IO_Helper::write_nodal_values(int, std::vector<double, std::allocator<double> > const&, int) 3: libMesh::ExodusII_IO::write_nodal_data(std::string const&, std::vector<double, std::allocator<double> > const&, std::vector<std::string, std::allocator<std::string> > const&) 4: libMesh::MeshOutput<libMesh::MeshBase>::write_equation_systems(std::string const&, libMesh::EquationSystems const&, std::set<std::string, std::less<std::string>, std::allocator<std::string> > const*) 5: libMesh::ExodusII_IO::write_timestep(std::string const&, libMesh::EquationSystems const&, int, double) 6: ./example-opt() [0x40cfa8] 7: __libc_start_main 8: ./example-opt() [0x40d32d] [0] /home/dknez/software/libmesh-src/src/mesh/exodusII_io_helper.C, line 1699, compiled Mar 6 2014 at 17:30:11 application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0Damn, yeah I don't know off the top of my head, would have to run it through debugger. You might also hit an assert in debug mode that would help...
yeah, I'll look at it tomorrow... Thanks.
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