LMGC90¶
Introduction¶
LMGC90 is a free and open source software dedicated to multiple physics simulation of discrete material and structures.
Modules¶
The LMGC90, version 2017.rc1 is available on Salomon via module LMGC90
:
$ 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 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/3.8.8.1
Python/2.7.9
Running Generic Example¶
LMGC90's 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 the /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.
Generation¶
For 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 .DAT
and .INI
files.
Computation¶
Now run the command script usually called command.py
:
$ python command.py
For 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 an output file readable by paraview.
Postprocessing and Visualization¶
The ASCII files in the POSTPRO
directory result from the commands in the DATBOX/POSTPRO.DAT
file. For 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
Welcome pre_lmgc chipy LMGC90_Postpro.pdf