== !LithoMop ==
!LithoMop Software Page

!LithoMop is a finite element code for the solution of the visco-elastic/plastic deformation that was designed for lithospheric modeling problems.

[[Image(images.png )]] !LithoMop is obsolete and has been replaced by !PyLith.

=== !LithoMop System Requirements ===
Lithomop3d should work on any UN*X system. It requires the following language tools:

  * A Fortran compiler. Both older Fortran-77 and modern Fortran-9x compilers will work.
  * A C compiler.
  * A C++ compiler.
  * [http://www.python.org/ Python 2.3 or later]
If you are using a modern UN*X system, there is a good chance that all of the above tools are already installed.

In addition, Lithomop3d v0.7.2 requires the following software packages:

  * (Optional) An MPI library. Lithomop3d itself is a serial code which does not use MPI. However, both PETSc and Pythia (detailed below) require MPI by default. A popular choice is [http://www-unix.mcs.anl.gov/mpi/mpich MPICH].
MPICH is recommended by the PETSc installation instructions; in fact, PETSc's configure.py can automatically download and install MPICH for you ('–download-mpich=yes').

If you decide to skip installing MPI, you will have to specially configure both PETSc and Pythia not to use MPI.

  * [http://www.mcs.anl.gov/petsc/ PETSc version 2.3], available from the MCS web site at Argonne National Laboratory.
If you decide not to install MPI, give PETSc's configure.py the '–with-mpi=0' option. See the PETSc installation instructions for details.

  * [http://www.geodynamics.org/cig/software/packages/pythia Pythia version 0.8]. The easiest way to install Pythia is to download the GNU-style pythia-0.8.tar.gz source package from the CIG web site under 'Software → Software Packages → Pythia'
If you decide not to install MPI, give Pythia's configure the '–without-mpi' option. General information about Pythia can be found at the [http://www.cacr.caltech.edu/projects/pyre Pyre project page].

Note that releases of both PETSc and Pythia are generally not backwards-compatible with prior versions. Therefore, you must install PETSc v2.3 and Pythia v0.8 specifically; future versions of PETSc and Pythia would not be expected to work with Lithomop3d v0.7.2.