Undefined Reference Errors When Using Demo

[NyquilDreams]

When making sample code with the files provided in the simpleBuildAgainstTrilinos folder, I ran into undefined reference errors on compilation. Manually inserting /ascldap/users/ihalim/internship/Trilinos-install/lib64/libmuelu.so.15.2.0 /ascldap/users/ihalim/internship/Trilinos-install/lib64/libxpetra.so.15.2.0 /ascldap/users/ihalim/internship/Trilinos-install/lib64/libxpetra-sup.so.15.2.0 into the link.txt file seems to have solved the problem, but I'm left wondering why they weren't being linked in the first place. Any ideas?

@jhux2

[jhux2]

@bartlettroscoe @sebrowne Any ideas/suggestions for Ian?

[bartlettroscoe]

@NyquilDreams, there are automated Trilinos tests that install Trilinos and then build the simpleBuildAgainstTrilinos CMake project against it. You can see these tests at:

Trilinos/packages/TrilinosInstallTests/CMakeLists.txt

Lines 226 to 261 in d2ba0c3

	tribits_add_advanced_test(simpleBuildAgainstTrilinos
	OVERALL_NUM_MPI_PROCS 1
	OVERALL_WORKING_DIRECTORY TEST_NAME
	EXCLUDE_IF_NOT_TRUE ${PROJECT_NAME}_ENABLE_Tpetra TPL_ENABLE_MPI
	TEST_0
	MESSAGE "Configure simpleBuildAgainstTrilinos against local Trilinos installation"
	CMND "${CMAKE_COMMAND}"
	ARGS
	-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
	-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
	-DCMAKE_Fortan_COMPILER=${CMAKE_Fortran_COMPILER}
	-DCMAKE_PREFIX_PATH=${PROJECT_BINARY_DIR}/install
	-DCMAKE_BUILD_TYPE=DEBUG
	${PROJECT_SOURCE_DIR}/demos/simpleBuildAgainstTrilinos
	PASS_REGULAR_EXPRESSION_ALL
	"-- Configuring done"
	"-- Generating done"
	ALWAYS_FAIL_ON_NONZERO_RETURN
	TEST_1
	MESSAGE "Build simpleBuildAgainstTrilinos"
	CMND "${CMAKE_COMMAND}"
	ARGS --build .
	TEST_2
	MESSAGE "Test simpleBuildAgainstTrilinos"
	CMND "${CMAKE_CTEST_COMMAND}"
	ARGS -VV
	PASS_REGULAR_EXPRESSION_ALL
	"Test #1: MyAppTest [.]+ +Passed"
	"100% tests passed, 0 tests failed out of 1"
	ALWAYS_FAIL_ON_NONZERO_RETURN
	ADDED_TEST_NAME_OUT simpleBuildAgainstTrilinos_name
	)

I wish I could show you the results of that test running on CDash but Trilinos does not currently have public CDash site to submit results to (so you will have to take my word for it that this test passes in all of the automated Trilinos builds).

Can you please attach your Trilinos configure script calling cmake, the STDOUT+STDERR output from the cmake ..., and the generated CMakeLists.txt file? I may be able to see what the issue is from there.

[NyquilDreams]

It turns out that CMakeLists.txt was simply missing MueLu and Xpetra in the list of components. Editing this line fixed the issue. find_package(Trilinos REQUIRED COMPONENTS Teuchos Tpetra MueLu Xpetra)

[bartlettroscoe]

simpleBuildAgainstTrilinos does not depend on Xpetra or MueLu, does it?

[NyquilDreams]

simpleBuildAgainstTrilinos does not depend on Xpetra or MueLu, does it?

It doesn't, but I had changed app.cpp in a way that did require them.