1. Using GIBI

CASTEM 2000 is a code for the analysis of finite element structures, which has a set of functionalities dedicated to meshing in 2D and 3D. All of these mesh functions are known under the name GIBI.

In the rest of this document, the set of mesh functions as well as all the commands for visualizing and exploiting the results will be referred to as GIBI.

GIBI is available on a number of Unix/Linux platforms. It is a version distributed by EDF R&D/ AMA under a contract with the CEA, it is available for download on the site `https://www.code-aster.org`_ < https://www.code-aster.org/>.

The memory allocated by GIBI is 20 mega-words by default. For some applications it is necessary to increase this memory size. To do this, you must define the ESOPE_PARAM variable in the following way:

setenv ESOPE_PARAM “ESOPE =x00000, NTRK =1048576”, =1024, LTRK =1048576”

or depending on the shell used:

export ESOPE_PARAM =” ESOPE =x00000, NTRK =1048576”, =1024, LTRK =1048576”

where x is the number of millions of words you want.

The CEA produces a new version of GIBI every year. Before being put into service on the centralized server and being distributed, this version is tested by the code team on all Aster tests. So the « standard » version is currently GIBI version 2000, launched interactively by the gibi2000.x command.