Elmer is an open source multiphysical simulation software developed by CSC - IT (Finland).
From their Github README:
Elmer is a finite element software for numerical solution of partial differential equations. Elmer is capable of handling any number of equations and is therefore ideally suited for the simulation of multiphysical problems. It includes models, for example, of structural mechanics, fluid dynamics, heat transfer and electromagnetics. Users can also write their own equations that can be dynamically linked with the main program. Elmer consists of several parts. The most important ones are ElmerSolver, the finite element solver, ElmerGUI, the graphical user interface, and ElmerGrid, the mesh creation and manipulation tool. Also a visualization tool, ElmerPost, is included in the package but it is no longer developed. Elmer software is licensed under GPL except for the ElmerSolver library which is licensed under LGPL license. Elmer is mainly developed at CSC - IT Center for Science, Finland. However, there have been numerous contributions from other organizations and developers as well, and the project is open for new contributions.
Availability and Restrictions
The following versions of Elmer are available on OSC clusters:
You can use
module spider elmer to view available modules for a given machine. Feel free to contact OSC Help if you need other versions for your work.
The current versions of Elmer are compiled with GNU 4.8.4 (requirement > 4.8) and BLAS libraries from MKL/11.2.3.
Elmer is available to all OSC users without restriction.
Usage on Oakley or Ruby
Setup on Oakley or Ruby
To configure the Oakley or Ruby cluster for the use of Elmer 8.1, use the following commands:
module load gnu/4.8.4 module load mkl/11.2.3 module load elmer
Batch Usage on Oakley or Ruby
Batch jobs can request mutiple nodes/cores and compute time up to the limits of the OSC systems. Refer to Queues and Reservations for Oakley, Queues and Reservations for Ruby, and Scheduling Policies and Limits for more info.
Converting Mesh with ElmerGrid and Running ElmerSolver
Below is an example batch script (
job.txt) for using Elmer:
#PBS -N Elmer #PBS -l nodes=1:ppn=1 #PBS -l walltime=30:00 #PBS -j oe #PBS -S /bin/bash # Load the modules for Elmer module load gnu/4.8.4 module load mkl/11.2.3 module load elmer # Move to the problem directory cd $PBS_O_WORKDIR # Copy files to $TMPDIR and move there to execute the program cp -r * $TMPDIR cd $TMPDIR # Convert the mesh - see Elmer webpage for more examples of 'ElmerGrid' ElmerGrid 14 2 beam.msh -autoclean # Run the solver ElmerSolver beam.sif # Finally, copy files back to your home directory cp -r * $PBS_O_WORKDIR
In order to run it via the batch system, submit the
job.txt file with the following command: