travis: Tidy and add full path for MPI example.

Author: Matthew Emmett

.travis.yml

@@ -35,7 +35,6 @@ script:
   - mkdir build
   - cd build
   - cmake -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -Dpfasst_WITH_MPI=${WITH_MPI} -Dpfasst_DISABLE_LIBCXX=ON -Dpfasst_BUILD_TESTS=ON -Dpfasst_BUILD_EXAMPLES=ON ..
-  - if [ "${WITH_MPI}" == "ON" ]; then mpicxx --version; fi
   - make
   - make test
   - make run_example_all

examples/advection_diffusion/CMakeLists.txt

@@ -66,7 +66,7 @@ if(${pfasst_WITH_MPI})
     message(STATUS "    creating make targets to run MPI examples")
     foreach(example ${advec_mpi_examples})
         add_custom_target(run_example_advec_${example}
-            COMMAND ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} 4 ${MPIEXEC_PREFLAGS} ${example} ${MPIEXEC_POSTFLAGS}
+            COMMAND ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} 4 ${MPIEXEC_PREFLAGS} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples/advection_diffusion/${example} ${MPIEXEC_POSTFLAGS}
             DEPENDS ${example}
             WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples/advection_diffusion
             COMMENT "Running Advection-Diffusion example: ${example}" VERBATIM