CPLEX/en: Difference between revisions
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The file is an executable archive which will perform the installation after you have answered a few questions. To execute the archive, you need to type the command <tt>bash ./cplex_studioXYZ.linux-x86.bin</tt>. | The file is an executable archive which will perform the installation after you have answered a few questions. To execute the archive, you need to type the command <tt>bash ./cplex_studioXYZ.linux-x86.bin</tt>. | ||
To access the software, you can create a personal module. Modules are normally created and placed in a directory hierarchy. In order for your modules to be found, you need to modify the configuration file <tt>$HOME/.bashrc</tt> so that it points to the root of this hierarchy, by adding the following line: | |||
{{Commande|export MODULEPATH{{=}}$HOME/modulefiles:$MODULEPATH}} | {{Commande|export MODULEPATH{{=}}$HOME/modulefiles:$MODULEPATH}} |
Revision as of 19:44, 28 March 2018
CPLEX is software for optimization, developed by IBM. It is available for academic users through IBM's academic program.
Download
To use CPLEX on Compute Canada clusters, you must first register with the IBM academic program and then download a personal version of the software.
Installation
The file is an executable archive which will perform the installation after you have answered a few questions. To execute the archive, you need to type the command bash ./cplex_studioXYZ.linux-x86.bin.
To access the software, you can create a personal module. Modules are normally created and placed in a directory hierarchy. In order for your modules to be found, you need to modify the configuration file $HOME/.bashrc so that it points to the root of this hierarchy, by adding the following line:
[nom@serveur ~]$ export MODULEPATH=$HOME/modulefiles:$MODULEPATH
Ensuite, il faut créer une structure de répertoires pour y mettre votre nouveau module cplex:
[nom@serveur ~]$ mkdir -p $HOME/modulefiles/mycplex
Dans ce répertoire, vous allez créer un fichier (par exemple $HOME/modulefiles/mycplex/12.8.0) ayant le numéro de la version que vous avez téléchargé précédemment (le XYX) et qui contient ceci:
************************************************************************************************
#%Module1.0#####################################################################
##
## cplex
##
proc ModulesHelp { } {
global cplexversion
puts stderr "\tIBM ILOG cplex "
puts stderr "\tThis module provides configuration for cplex, concert, cpoptimizer and opl"
}
module-whatis "IBM ILOG cplex (cplex, concert, cpoptimizer, opl). This version doesn't ask for a licence file."
# for Tcl script use only
set cplexversion XYZ
set studio_root <root path of cplex>
set cplexroot $studio_root/cplex
set concertroot $studio_root/concert
set oplroot $studio_root/opl
set cpoptimizerroot $studio_root/cpoptimizer
set cplexbin x86-64_linux
set cplexlib $cplexbin/static_pic
set concertbin x86-64_linux
set concertlib $concertbin/static_pic
set oplbin x86-64_linux
set opllib $oplbin/static_pic
set cpoptimizerbin x86-64_linux
set cpoptimizerlib $cpoptimizerbin/static_pic
prepend-path PATH $cplexroot/bin/$cplexbin
prepend-path PATH $oplroot/bin/$oplbin
prepend-path PATH $cpoptimizerroot/bin/$cpoptimizerbin
prepend-path CPATH $cplexroot/include
prepend-path CPATH $concertroot/include
prepend-path CPATH $oplroot/include
prepend-path CPATH $cpoptimizerroot/include
prepend-path -d " " CPATH_EXPANDED -I$cplexroot/include
prepend-path -d " " CPATH_EXPANDED -I$concertroot/include
prepend-path -d " " CPATH_EXPANDED -I$oplroot/include
prepend-path -d " " CPATH_EXPANDED -I$cpoptimizerroot/include
prepend-path LIBRARY_PATH $cplexroot/lib/$cplexlib
prepend-path LIBRARY_PATH $concertroot/lib/$concertlib
prepend-path LIBRARY_PATH $oplroot/lib/$opllib
prepend-path LIBRARY_PATH $oplroot/bin/x86-64_linux/
prepend-path LIBRARY_PATH $cpoptimizerroot/lib/$cpoptimizerlib
prepend-path -d " " LIBRARY_PATH_EXPANDED -L$cplexroot/lib/$cplexlib
prepend-path -d " " LIBRARY_PATH_EXPANDED -L$concertroot/lib/$concertlib
prepend-path -d " " LIBRARY_PATH_EXPANDED -L$oplroot/lib/$opllib
prepend-path -d " " LIBRARY_PATH_EXPANDED -L$oplroot/bin/x86-64_linux/
prepend-path -d " " LIBRARY_PATH_EXPANDED -L$cpoptimizerroot/lib/$cpoptimizerlib
prepend-path LD_LIBRARY_PATH $cplexroot/bin/$cplexbin
prepend-path LD_LIBRARY_PATH $oplroot/bin/$oplbin
prepend-path CLASSPATH $cplexroot/lib/cplex.jar
prepend-path MATLABPATH $cplexroot/matlab
***********************************************************
Ajustez les lignes qui correspondent aux variables cplexversion et studio_root afin qu'elles aient les bonnes valeurs : la version téléchargée et du chemin d'accès pour ce logiciel (c'est-à-dire le chemin que vous avez spécifié lors de l'extraction de l'archive).
Java
Si vous utilisez java, vous aurez quelques étapes supplémentaires. Tout d'abord, dans votre fichier .bashrc, vous pouvez ajouter la ligne,
[nom@serveur ~]$ export CLASSPATH=.
qui permettra de trouver votre code lors de l'exécution.
Ensuite, vous devrez modifier la librairie dynamique de cplex. Cherchez cette librairie dans l'arborescence du répertoire d'installation, faites en une copie et exécutez la commande:
[nom@serveur ~]$ setrpaths.sh --path libcplex1280.so
Il est possible que lors de votre compilation, vous ayez un message d'erreur à cause d'un manque de mémoire. Si c'est le cas, vous devrez demander un noeud de calcul interactif pour pouvoir faire la compilation. Par exemple:
[nom@serveur ~]$ salloc --time=1:0:0 --ntasks=1 --mem-per-cpu=8G