CPLEX Optimizer

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Description

High-performance mathematical programming solver for linear programming, mixed integer programming, and quadratic programming

Availability

Version 12.5 and 12.6. Freely available to all academic users. You have to accept a licence agreement to use this program.

Available modules:

cplex-12.6.1
cplex-12.6.0
cplex-12.5.1

Licence

IBM Academic Initiative License

Use

You can load the module via the command

module add cplex-12.6.1

Parallel run

CPLEX utilizes OpenMP system (parallelization through many processor cores in one machine). You can restrict the number of cores by set up of system variable OMP_NUM_THREADS, for example:

export OMP_NUM_THREADS=$PBS_NUM_PPN 

which uses the number of processors granted by planning system. You can also restrict the number of cores directly in the program by set up a proper directive in .mod file:

execute{
  cplex.threads = XXX;
}

Documentation

Documentation is available in html starting in file /software/cplex-126/doc/html/en-US/documentation.html. You can find a tutorial in /software/cplex-126/doc/tutorial/SPSS_Connector.pdf.

Program manager

meta@cesnet.cz

Homepage

http://www-01.ibm.com/software/commerce/optimization/cplex-optimizer/