Introduction

Elmer is an open source (GPL) computational tool for multi-physics problems. It is developed by CSC in collaboration with Finnish universities, research laboratories and industry. To test ONELAB models working with Elmer, you first need to install the generic ONELAB virtual machine on your system by following these instructions. When done, you can log in into the virtual machine (username: "olvm", passwd: olvm) and proceed with the installation of the Elmer software, and the download of benchmark ONELAB models. The instructions to do so are given in the next section.

Installation

The Virtual machine is configured so that Gmsh and Elmer can be installed straightforwardly by issuing simple commands in a terminal. Proceed as follows.

Step 1 - Download installation scripts: Open a terminal by clicking on the "terminal" icon in the launcher panel and issue the command; install_scripts.sh

Step 2 - Install Gmsh and Onelab: Then the command; install_gmsh.sh; downloads the nightly-build of Gmsh from http://geuz.org/gmsh, install it, and place a Gmsh icon on the Desktop.

Step 3 - Install Elmer: The command; install_elmer.sh; downloads the source code of Elmer and compile it on the virtual machine. This may take several minutes.

After these 3 steps, you have a woking installation of Gmsh and Elmer on the virtual machine.

Step 4 - Download model examples: The model examples described below are downloaded in the directory names ELMERMODELS with the command; getElmerModels.sh.

ONELAB models