libMesh-specific configuration options
For generic installation instructions, refer also to the INSTALL file.
./bootstrap (optional, needed only if you add/modify m4 files or configure.ac)
make check (optional, runs the example programs and unit tests when possible)
libMesh supports the notion of multiple methods - that is, compilation settings used to build the library. The major methods supported by the library are:
opt: Fully Optimized mode, with little to no error checking. No debugging symbols are included in the resulting library. Agressive optimization flags are used.
dbg: Full debugging mode - all useful compiler warnings are enabled, as well as robust internal state checking.
devel: Use high levels of compiler optimization, but also enable internal state checking. Debugging symbols are included, but the resulting code is not always easy to navigate in a debugger because of compiler optimizations.
pro: Optimized code path with compiler flags suitable for use with gprof.
oprof: Optimized code path with compiler flags suitable for use with oprofile.
To select a set of methods, you can pass them to configure in one of two ways:
$ ./configure --with-methods="opt dbg devel"
$ ./configure METHODS="devel oprof"
If unspecified, the three METHODS="opt dbg devel" are default.
Multiple Builds with Different Compilers
libMesh fully supports out-of-tree builds, and users are encouraged to use this feature when needed to support multiple compilers. For example, on a system where multiple compilers are availble and accessible via modules, you can share the same source tree by creating a subdirectory for each compiler build:
$ export LIBMESH_SRC=/local/libmesh $ cd $LIBMESH_SRC $ module load gcc/4.6 $ cd $LIBMESH_SRC && mkdir gcc-4.6 && cd gcc-4.6 && ../configure && make && make install $ module swap gcc intel/12.1 $ cd $LIBMESH_SRC && mkdir intel-12.1 && cd intel-12.1 && ../configure && make && make install
libMesh has no required dependencies other than a reasonably modern C & C++ compiler. To run on distributed memory platforms in parallel you will also need MPI.
We support a large number of optional packages, some of which are distributed inside the ./contrib directory and are compiler directly with libMesh, others can be used from third-party installation. For a list of supported packages and optional dependencies see here
LibMesh is open source software distributed under the LGPL license, version 2.1.