CompVision

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<h1>Parallel Environment</h1> <div class="level1"> <p> The cluster has a module that sets a parallel environment. This module can also be used as a way to 'reserve' slots in a desired queue. </p> <p> To load the module, simply type: </p> <pre class="code">module load openmpi </pre><p> </p> <p> Now, when we submit a job that will require more than one CPU/slot, either with qsub or qlogin, we can add the following parameter: </p> <pre class="code">qsub -pe openmpi N ... </pre><p> </p> <p> Where N is the number of CPU/slots we would like to use for that job. The cluster will assign N slots to run. You can combine the -l hostname=HNAME parameter to ensure that those slots will be used on a single node if you want. Otherwise, openmpi will distribute the reserved slots across all nodes. </p> </div>