Using environment modules

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Example

Consider this simple python3 script that should calculate Pi to 1 million digits: <source lang='python'> from decimal import * D=Decimal getcontext().prec=10000000 p=sum(D(1)/16**k*(D(4)/(8*k+1)-D(2)/(8*k+4)-D(1)/(8*k+5)-D(1)/(8*k+6))for k in range(411)) print(str(p)[:10000002]) </source>

Loading modules

In order for this script to run, the first thing that is needed is that Python3, which is not the default Python version on the cluster, is load into your environment. Availability of (different versions of) software can be checked by the following command:

 module avail

In the list you should note that python3 is indeed available to be loaded, which then can be loaded with the following command:

 module load python/3.3.3

See also

• B4F Cluster
• Lx6 and Lx7 compute nodes
• Environment Modules
• Control R environment using modules
• Create a shortcut for the ssh log-in command
• Installing R packages locally

External links

• http://modules.sourceforge.net
• http://www.admin-magazine.com/HPC/Articles/Environment-Modules