Translations:Utiliser des modules/27/en

Module hierarchy

Most systems use a flat module structure: All modules are at the same level. This becomes problematic when many combinations of versions of different modules are available on a system. For example, if you need to use the FFTW library and the module fftw is available in several versions, including a version compiled with GCC 4.8 and Open MPI 1.6, you might see modules named openmpi/1.6_gcc4.8 and fftw/3.3_gcc4.8_openmpi1.6. This is neither elegant nor practical. To solve this problem we use a hierarchy of modules. Rather than using the command

[name@server ~]$ module load gcc/4.8 openmpi/1.6_gcc4.8 fftw/3.3_gcc4.8_openmpi1.6

you instead use

[name@server ~]$ module load gcc/4.8 openmpi/1.6 fftw/3.3

This is made possible by using a module hierarchy. The fftw/3.3 module that is loaded will not be the same one that would be loaded if you had previously loaded the Intel compilers instead of GCC.

GNU Compiler Collection, an open source compiler collection

Message Passing Interface