Run Navier Stokes test in parallel

cmake/modules/GeneratedSystemtests.cmake

@@ -67,10 +67,15 @@ function(dune_add_formcompiler_system_test)
 
       _add_test(NAME ${tname}
                 COMMAND ${CMAKE_BINARY_DIR}/run-in-dune-env ${SYSTEMTEST_SCRIPT}
-                      --exec ${tname}
-                      --ini "${CMAKE_CURRENT_BINARY_DIR}/${inifile}"
-                      --source ${CMAKE_CURRENT_SOURCE_DIR}
-                )
+                --exec ${tname}
+                --ini "${CMAKE_CURRENT_BINARY_DIR}/${inifile}"
+                --source ${CMAKE_CURRENT_SOURCE_DIR}
+                --mpi-exec "${MPIEXEC}"
+                --mpi-numprocflag=${MPIEXEC_NUMPROC_FLAG}
+                --mpi-preflags "${MPIEXEC_PREFLAGS}"
+                --mpi-postflags "${MPIEXEC_POSTFLAGS}"
+                --max-processors=${DUNE_MAX_TEST_CORES}
+               )
 
       set_tests_properties(${tname} PROPERTIES SKIP_RETURN_CODE 77)
       set_tests_properties(${tname} PROPERTIES TIMEOUT 60)

test/navier-stokes/CMakeLists.txt

@@ -3,6 +3,7 @@ add_subdirectory(reference_program)
 dune_add_formcompiler_system_test(UFLFILE navierstokes_2d_dg_quadrilateral.ufl
                                   BASENAME navierstokes_2d_dg_quadrilateral
                                   INIFILE navierstokes_2d_dg_quadrilateral.mini
+                                  SCRIPT dune_execute_parallel.py
                                   )
 
 # dune_add_formcompiler_system_test(UFLFILE navierstokes_3d_dg_quadrilateral.ufl

test/navier-stokes/navierstokes_2d_dg_quadrilateral.mini

@@ -8,6 +8,9 @@ periodic = true true
 
 printmatrix = false
 
+[wrapper.execute_parallel]
+numprocessors = 4
+
 [wrapper.vtkcompare]
 name = {__name}
 extension = vtu