Gurobi

Gurobi is a commercial software suite for solving complex optimization problems. This page wiki page describes the non-commercial use of Gurobi software on Compute Canada clusters and is currently a work in progress.

License limitations

Compute Canada supports and provides a free license to use Gurobi Graham, Cedar, Beluga and Niagara clusters. The license provides a total number of 4096 simultaneous uses (tokens in use) and permits distributed usage. A single user can run multiple simultaneous jobs. In order to use Gurobi you must agree to certain conditions. Please contact support with a copy of the following statement. You will then be added into the Compute Canada license file as a permitted user.

My Compute Canada username is "_______" and I am a member of the institution "________________".  This message confirms that I will be using the Compute Canada Gurobi > license on Compute Canada systems only for non-commercial research project(s) that will be published in a publicly available article(s).

Gurobi Interactive Shell

[gra-login2:~] salloc --time=1:00:0 --cpus-per-task=8 --mem=1G --account=def-xyz
[gra800:~] module load gurobi 
[gra800:~] gurobi.sh
gurobi> m = read('/cvmfs/restricted.computecanada.ca/easybuild/software/2017/Core/gurobi/8.1.1/examples/data/glass4') 
gurobi> m.setParam('Threads', 8)
gurobi> m.optimize()
gurobi> m.reset()
gurobi> m.optimize()
gurobi> m.tune()
gurobi> help()

Gurobi Command-Line Tools

[gra-login2:~] salloc --time=1:00:0 --cpus-per-task=8 --mem=1G --account=def-xyz
[gra800:~] module load gurobi
[gra800:~] gurobi_cl Threads=8 Record=1 Method=2 ResultFile=p0033.sol InputFile=p0033.mst \
   InputFile=p0033.hnt.gz LogFile=p0033.log $GUROBI_HOME/examples/data/p0033.mps
[gra800:~] gurobi_cl recording000.grbr
[gra800:~] gurobi_cl --tokens
[gra800:~] gurobi_cl --help