Merge branch 'fix/pnm-example' into 'master'

[example][pnm] Two fixes for the example

See merge request !3530

(cherry picked from commit e3239fa5)

8d1c4816 [example][pnm][test] Fix CMake guard and add label
323df2ce [examples][pnm] Add missing initialize call

examples/porenetwork_upscaling/CMakeLists.txt

@@ -3,7 +3,7 @@ dune_symlink_to_source_files(FILES "params.input")
 dumux_add_test(NAME example_pnm1p_upscaling
                LABELS porenetwork example
                SOURCES main.cc
-               CMAKE_GUARD HAVE_UMFPACK dune-foamgrid_FOUND
+               CMAKE_GUARD "( HAVE_UMFPACK AND dune-foamgrid_FOUND )"
                COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
                CMD_ARGS       --script fuzzyData --delimiter " "
                               --files ${CMAKE_SOURCE_DIR}/test/references/example_porenetwork_upscaling_noncreeping_flow_X-dir_PermeabilityratioVsForchheimerNumber.dat
@@ -14,6 +14,7 @@ dumux_add_test(NAME example_pnm1p_upscaling
 
 dumux_add_test(NAME example_pnm1p_creeping_flow_upscaling
                TARGET example_pnm1p_upscaling
-               CMAKE_GUARD HAVE_UMFPACK dune-foamgrid_FOUND
+               LABELS porenetwork example
+               CMAKE_GUARD "( HAVE_UMFPACK AND dune-foamgrid_FOUND )"
                COMMAND ${CMAKE_SOURCE_DIR}/bin/testing/runtest.py
                CMD_ARGS --command "${CMAKE_CURRENT_BINARY_DIR}/example_pnm1p_upscaling  params.input -Problem.AssumeCreepingFlow true")

examples/porenetwork_upscaling/doc/main.md

@@ -249,6 +249,9 @@ int main(int argc, char** argv)
 {
     using namespace Dumux;
 
+    // Initialize MPI+X environment
+    Dumux::initialize(argc, argv);
+
     // We parse the command line arguments.
     Parameters::init(argc, argv);
 

examples/porenetwork_upscaling/main.cc

@@ -223,6 +223,9 @@ int main(int argc, char** argv)
 {
     using namespace Dumux;
 
+    // Initialize MPI+X environment
+    Dumux::initialize(argc, argv);
+
     // We parse the command line arguments.
     Parameters::init(argc, argv);