LMGC90 is a free and open source software dedicated to multiple physics simulation of discrete material and structures.
The LMGC90, version 2017.rc1 is available on Salomon via module
$ ml LMGC90
The module sets up environment variables and loads some other modules, required for running LMGC90 python scripts. This particular command loads the default module, which is
LMGC90/2017.rc1-GCC-6.3.0-2.27, and modules:
GCCcore/6.3.0 binutils/2.27-GCCcore-6.3.0 GCC/6.3.0-2.27 bzip2/1.0.6 zlib/1.2.8 ncurses/6.0 libreadline/6.3 Tcl/8.6.3 SQLite/188.8.131.52 Python/2.7.9
Running Generic Example¶
LMGC90 software main API is a Python module. It comes with a pre-processor written in Python. There are several examples that you can copy from the
examples directory which is in
/apps/all/LMGC90/2017.rc1-GCC-6.3.0-2.27 folder. Follow the next steps to run one of them.
First choose an example and open a terminal in the directory of the copied example.
To have more information on the pre-processor open in a web navigator the file [docs/pre_lmgc/index.html][pre_lmgc].
To run an example, if there is no
DATBOX directory or it is empty, run the Python generation script which is mostly called
gen_sample.py with the command:
$ python gen_sample.py
You should now have a
DATBOX directory containing all needed
Now run the command script usually called
$ python command.py
To get more information on the structure on command scripts read the documentation opening the file [docs/chipy/index.html][chipy] in a web browser.
Once the computation is done, you should get the directory
OUTBOX containing ASCII output files, and a
DISPLAY directory with output file readable by paraview.
Postprocessing and Visualization¶
The ASCII files in
POSTPRO directory result from the commands in the
DATBOX/POSTPRO.DAT file. To have more information on how to use these features read the documents [manuals/LMGC90_Postpro.pdf][LMGC90_Postpro.pdf].
The files inside the
DISPLAY directory can be visualized with paraview. It is advised to read the
.pvd files which ensure time consistency. The different output files are:
- tacts: contactors of rigid objects
- rigids: center of mass of rigid objects
- inter: interactions
- mecafe: mechanical mesh
- therfe: thermal mesh
- porofe: porous mechanical mesh
- multife: multi-phasic fluid in porous media mesh