For generic installation instructions refer also to the file INSTALL.
./bootstrap (optional, needed if you will modify the GNU autotools build system)
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.
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