IML++ is a C++ templated library of modern iterative methods for solving both symmetric and nonsymmetric linear systems of equations. OOFEM provides the interface to this library, which enables to use iterative, single-processor solvers. See input data manual for description, how to select various solvers. The IML++ can be downloaded from project website. Installation instructions:
Parallel support in oofem allows to efficiently exploit the power of parallel computers. The parallel model is based on domain decomposition and message passing paradigms. This allows to use parallel version on a distributed memory systems, shared memory systems, and workstation clusters.
OOFEG is graphical postprocessor provided with oofem. It requires X-windows libraries to be installed on the system, so it is more or less limited to unix platforms. The capabilities of OOFEG are limited in 3D visualization, therefore the recommended way for end users interested in 3D analyses is to use oofem capability to export data in VTK format and use third-party, freely available tools such as mayavi or paraview to visualize results. Another advantage is, that these tools are multiplatform and OPEN-GL based, so that they are available on both unix and windows and can fully explore the potential of your graphics hardware.
If you decide to use oofeg, ELIXIR and Ckit libraries, written by Petr Krysl (http://www.multires.caltech.edu/~pkrysl/), need to be installed. The version of Elixir to be used with OOFEM is likely to be not compatible with the original version maintained by the Petr Krysl. The compatible Elixir version is available at oofem download page (http://www.oofem.org/en/download/download.html). The Ckit library can be obtained at the same location.