Link to the source code for this example:
Open fem_system_ex2 in new tab.The console output of the program:
*************************************************************** * Running Example fem_system_ex2: * example-opt *************************************************************** *** Warning, This code is untested, experimental, or likely to see future API changes: ../../../include/libmesh/diff_physics.h, line 525, compiled Apr 13 2016 at 18:30:41 *** *** Warning, This code is untested, experimental, or likely to see future API changes: ../src/mesh/vtk_io.C, line 367, compiled Apr 13 2016 at 18:30:48 *** ===== Time Step 0 ( 0.00%), time = 0.00 ===== Solving Solid Assembling the System Nonlinear Residual: 3691.41 Linear solve starting, tolerance 0.00 Linear solve finished, step 6, residual 0.00 Trying full Newton step Current Residual: 0.09 Nonlinear solver current_residual 0.09 > 0.00 Nonlinear solver relative residual 0.00 > 0.00 Nonlinear solver converged, step 0, relative step size 0.00 < 0.00 Doing a reinit of the equation systems Advancing to next step ===== Time Step 1 ( 20.00%), time = 0.00 ===== Solving Solid Assembling the System Nonlinear Residual: 738516.58 Linear solve starting, tolerance 0.00 Linear solve finished, step 6, residual 0.00 Trying full Newton step Current Residual: 38.63 Nonlinear step: |du|/|u| = 0.06, |du| = 1.04 Assembling the System Nonlinear Residual: 38.63 Linear solve starting, tolerance 0.00 Linear solve finished, step 7, residual 0.00 Trying full Newton step Current Residual: 1.49 Nonlinear solver current_residual 1.49 > 0.00 Nonlinear solver relative residual 0.00 > 0.00 Nonlinear solver converged, step 1, relative step size 0.00 < 0.00 Doing a reinit of the equation systems Advancing to next step ===== Time Step 2 ( 40.00%), time = 0.00 ===== Solving Solid Assembling the System Nonlinear Residual: 788389.85 Linear solve starting, tolerance 0.00 Linear solve finished, step 6, residual 0.00 Trying full Newton step Current Residual: 63.02 Nonlinear step: |du|/|u| = 0.06, |du| = 1.05 Assembling the System Nonlinear Residual: 63.02 Linear solve starting, tolerance 0.00 Linear solve finished, step 8, residual 0.00 Trying full Newton step Current Residual: 3.80 Nonlinear solver current_residual 3.80 > 0.00 Nonlinear solver relative residual 0.00 > 0.00 Nonlinear solver converged, step 1, relative step size 0.00 < 0.00 Doing a reinit of the equation systems Advancing to next step ===== Time Step 3 ( 60.00%), time = 0.00 ===== Solving Solid Assembling the System Nonlinear Residual: 844777.39 Linear solve starting, tolerance 0.00 Linear solve finished, step 7, residual 0.00 Trying full Newton step Current Residual: 92.68 Nonlinear step: |du|/|u| = 0.06, |du| = 1.06 Assembling the System Nonlinear Residual: 92.68 Linear solve starting, tolerance 0.00 Linear solve finished, step 8, residual 0.00 Trying full Newton step Current Residual: 8.47 Nonlinear solver current_residual 8.47 > 0.00 Nonlinear solver relative residual 0.00 > 0.00 Nonlinear solver converged, step 1, relative step size 0.00 < 0.00 Doing a reinit of the equation systems Advancing to next step ===== Time Step 4 ( 80.00%), time = 0.00 ===== Solving Solid Assembling the System Nonlinear Residual: 909710.92 Linear solve starting, tolerance 0.00 Linear solve finished, step 8, residual 0.00 Trying full Newton step Current Residual: 137.99 Nonlinear step: |du|/|u| = 0.07, |du| = 1.07 Assembling the System Nonlinear Residual: 137.99 Linear solve starting, tolerance 0.00 Linear solve finished, step 8, residual 0.00 Trying full Newton step Current Residual: 19.82 Nonlinear step: |du|/|u| = 0.00, |du| = 0.02 Assembling the System Nonlinear Residual: 19.82 Linear solve starting, tolerance 0.00 Linear solve finished, step 10, residual 0.00 Trying full Newton step Current Residual: 0.12 Nonlinear solver current_residual 0.12 > 0.00 Nonlinear solver relative residual 0.00 > 0.00 Nonlinear solver converged, step 2, relative step size 0.00 < 0.00 Doing a reinit of the equation systems Advancing to next step Finished calculations ------------------------------------------------------------------------------------------------------------------- | Time: Wed Apr 13 12:35:58 2016 | | OS: Darwin | | HostName: peterson-laptop.local | | OS Release: 15.0.0 | | OS Version: Darwin Kernel Version 15.0.0: Sat Sep 19 15:53:46 PDT 2015; root:xnu-3247.10.11~1/RELEASE_X86_64 | | Machine: x86_64 | | Username: petejw | | Configuration: ../configure 'INSTALL=/usr/bin/install -C' | | '--with-methods=opt dbg' | | '--prefix=/Users/petejw/projects/libmesh_git/installed' | | '--enable-perflog' | | '--enable-tracefiles' | | '--disable-blocked-storage' | | '--enable-tecio' | | '--enable-unique-ptr' | | '--enable-ifem' | | '--disable-strict-lgpl' | | '--with-vtk-include=/opt/moose/vtk-6.3/include/vtk-6.3' | | '--with-vtk-lib=/opt/moose/vtk-6.3/lib' | | 'CXX=mpicxx' | | 'CC=mpicc' | | 'FC=mpif90' | | 'F77=mpif77' | | 'PETSC_DIR=/opt/moose/petsc/mpich_petsc-3.6.1/clang-opt-superlu' | | 'SLEPC_DIR=/opt/petejw/slepc/3.6.1' | ------------------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------- | libMesh Performance: Alive time=0.270574, Active time=0.252498 | ----------------------------------------------------------------------------------------------------------------- | Event nCalls Total Time Avg Time Total Time Avg Time % of Active Time | | w/o Sub w/o Sub With Sub With Sub w/o S With S | |-----------------------------------------------------------------------------------------------------------------| | | | | | DofMap | | add_neighbors_to_send_list() 12 0.0004 0.000032 0.0004 0.000032 0.15 0.15 | | build_sparsity() 6 0.0034 0.000566 0.0037 0.000608 1.35 1.45 | | create_dof_constraints() 12 0.0002 0.000014 0.0002 0.000014 0.07 0.07 | | distribute_dofs() 12 0.0004 0.000031 0.0014 0.000116 0.15 0.55 | | dof_indices() 56960 0.0151 0.000000 0.0151 0.000000 5.99 5.99 | | old_dof_indices() 6400 0.0025 0.000000 0.0025 0.000000 0.97 0.97 | | prepare_send_list() 14 0.0000 0.000000 0.0000 0.000000 0.00 0.00 | | reinit() 12 0.0010 0.000085 0.0010 0.000085 0.40 0.40 | | | | EquationSystems | | build_solution_vector() 5 0.0020 0.000391 0.0032 0.000636 0.77 1.26 | | | | FE | | compute_shape_functions() 3200 0.0049 0.000002 0.0049 0.000002 1.93 1.93 | | init_shape_functions() 1940 0.0005 0.000000 0.0005 0.000000 0.20 0.20 | | | | FEMSystem | | assembly() 10 0.1562 0.015617 0.1747 0.017466 61.85 69.17 | | assembly(get_residual) 10 0.0230 0.002303 0.0413 0.004134 9.12 16.37 | | | | FEMap | | compute_affine_map() 160 0.0001 0.000001 0.0001 0.000001 0.06 0.06 | | compute_face_map() 1920 0.0010 0.000001 0.0010 0.000001 0.38 0.38 | | compute_map() 3040 0.0053 0.000002 0.0053 0.000002 2.11 2.11 | | init_face_shape_functions() 20 0.0001 0.000004 0.0001 0.000004 0.03 0.03 | | init_reference_to_physical_map() 1940 0.0085 0.000004 0.0085 0.000004 3.36 3.36 | | | | GenericProjector | | copy_dofs 3840 0.0018 0.000000 0.0085 0.000002 0.70 3.38 | | operator() 20 0.0022 0.000112 0.0134 0.000669 0.89 5.30 | | | | Mesh | | contract() 5 0.0000 0.000003 0.0000 0.000005 0.01 0.01 | | find_neighbors() 1 0.0002 0.000179 0.0002 0.000179 0.07 0.07 | | renumber_nodes_and_elem() 7 0.0000 0.000003 0.0000 0.000003 0.01 0.01 | | | | MeshOutput | | write_equation_systems() 5 0.0094 0.001875 0.0126 0.002511 3.71 4.97 | | | | MeshRefinement | | _coarsen_elements() 5 0.0000 0.000001 0.0000 0.000001 0.00 0.00 | | _refine_elements() 5 0.0000 0.000004 0.0000 0.000004 0.01 0.01 | | make_coarsening_compatible() 5 0.0000 0.000004 0.0000 0.000004 0.01 0.01 | | make_flags_parallel_consistent() 10 0.0001 0.000008 0.0001 0.000008 0.03 0.03 | | make_refinement_compatible() 5 0.0000 0.000004 0.0000 0.000004 0.01 0.01 | | | | MeshTools::Generation | | build_cube() 1 0.0001 0.000064 0.0001 0.000064 0.03 0.03 | | | | NewtonSolver | | solve() 5 0.0026 0.000516 0.2267 0.045338 1.02 89.78 | | | | OldSolutionValue | | check_old_context(c) 3840 0.0021 0.000001 0.0045 0.000001 0.83 1.80 | | eval_old_dofs() 3840 0.0013 0.000000 0.0063 0.000002 0.50 2.48 | | | | Parallel | | allgather() 12 0.0000 0.000000 0.0000 0.000000 0.00 0.00 | | | | Partitioner | | single_partition() 1 0.0000 0.000008 0.0000 0.000008 0.00 0.00 | | | | PetscLinearSolver | | solve() 10 0.0065 0.000651 0.0065 0.000651 2.58 2.58 | | | | System | | project_vector(old,new) 20 0.0018 0.000089 0.0160 0.000799 0.70 6.33 | | | | TopologyMap | | init() 5 0.0000 0.000003 0.0000 0.000003 0.01 0.01 | ----------------------------------------------------------------------------------------------------------------- | Totals: 87315 0.2525 100.00 | ----------------------------------------------------------------------------------------------------------------- *************************************************************** * Done Running Example fem_system_ex2: * example-opt ***************************************************************