Dear all, I have trouble running ex06 from the "meshlib" examples.
http://libmesh.sourceforge.net/ex6.php It says something like.. "For this example to work you must have configured the library with the --enable-ifem option" which I don't understand the way to do it. when I compile the code, I use the following command [gtse@d30smm4 ex6]$ c++ ex6.C /home/geoffery/libmesh-0.7.1/libmesh/examples/ex3/exact_solution.C `/home/geoffery/libmesh-0.7.1/libmesh/contrib/bin/libmesh-config --cxxflags --include --ldflags` and it compiles and when run the executable it gives the output like this, [gtse@d30smm4 ex6]$ ./a.out Assertion `false' failed. Configuring libMesh with --enable-ifem may be required to run this code. [gtse@d30smm4 ex6]$ which is no good. then I tried something like this and, [gtse@d30smm4 ex6]$ c++ ex6.C /home/geoffery/libmesh-0.7.1/libmesh/examples/ex3/exact_solution.C `/home/geoffery/libmesh-0.7.1/libmesh/contrib/bin/libmesh-config -- enable-ifem --cxxflags --include --ldflags` still there is no luck. it says something like, c++: ambiguous abbreviation -- c++: Unknown: No such file or directory c++: argument:: No such file or directory c++: usage:: No such file or directory cc1plus: error: unrecognized command line option "-fcppflags" cc1plus: error: unrecognized command line option "-fcxxflags" cc1plus: error: unrecognized command line option "-fcxx" cc1plus: error: unrecognized command line option "-fcc" cc1plus: error: unrecognized command line option "-fcppflags" cc1plus: error: unrecognized command line option "-fcxxflags" cc1plus: error: unrecognized command line option "-fcxx" cc1plus: error: unrecognized command line option "-fcc" [gtse@d30smm4 ex6]$ later, I tried going into this directory /home/geoffery/libmesh-0.7.1/libmesh/include/base and configure the libmesh_config.h file. Done this by un-commenting the following part /* Flag indicating if the library should be built with infinite elements */ #undef LIBMESH_ENABLE_INFINITE_ELEMENTS then compile the code, run ex06 and now back to square one... Assertion `false' failed. Configuring libMesh with --enable-ifem may be required to run this code. also tried the following but don't think it would work either... /* Flag indicating if the library should be built with infinite elements */ #ifndef LIBMESH_ENABLE_INFINITE_ELEMENTS #define LIBMESH_ENABLE_INFINITE_ELEMENTS 1 #endif while the output gives... [gtse@d30smm4 ex6]$ c++ ex6.C /home/geoffery/libmesh-0.7.1/libmesh/examples/ex3/exact_solution.C `/home/geoffery/libmesh-0.7.1/libmesh/contrib/bin/libmesh-config --cxxflags --include --ldflags` /tmp/cc6vvFni.o: In function `main': ex6.C:(.text+0x1b3): undefined reference to `libMesh::InfElemBuilder::build_inf_elem(bool)' /tmp/cc6vvFni.o: In function `assemble_wave(libMesh::EquationSystems&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': ex6.C:(.text+0x12c8): undefined reference to `libMesh::FEBase::build_InfFE(unsigned int, libMesh::FEType const&)' collect2: ld returned 1 exit status finally, also tried by modifying the line in ex6.C from libmesh_example_assert(false, "--enable-ifem"); to libmesh_example_assert(true, "--enable-ifem"); but there is no output after compiling and running it. so, could you give us some clue? Thanks, Geoffrey Geoffrey Tse | D30, Sackville Street Building | School of Electrical and Electronic Engineering |University of Manchester |Manchester | M60 1QD | Tel: 0161 306 4773 | ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
