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<div class="field-item even"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2017-03-07T00:00:00+01:00">07/03/2017</span></div>
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<p>Dear Users,</p>
<p>as <a href="http://www.hpc.cineca.it/center_news/marconi-knl-change-node-configuration-cachequadrant" target="_blank">previously announced</a>, all the MARCONI-KNL nodes in the general production queue (knlroute, serving the knldebug and knlprod) are undergoing a massive reconfiguration to be set in the <strong>cache/quadrant</strong> modes. The operation is nearly complete, and all queueing jobs requesting different mcdram/numa resources cannot run anymore. In order to guarantee the correct functioning of the scheduler, <strong>all jobs requiring mcdram=flat, and numa different from quadrant, will be deleted</strong> in the next hours.</p>
<p>If interested to keep such queueing jobs, you can alter the selected resources using the "qalter" command like follows (adapted to your specific requests):</p>
<p style="font-family: Courier New,Courier,mono;">qalter <-l select=XX:ncpus=68:mpiprocs=YY:mem=93GB:mcdram=cache:numa=quadrant> <job_id></p>
<p>where XX=number of requested chunks, YY= number of mpi processes per chunk. Please note that the maximum allowed memory in the cache mode is 93GB, and the <job_id> needs to be specified as <job_number>.r064u06s01 if you load the env-knl module, or <job_number>.r064u06s01@knl1 if you don't use the env-knl module.</p>
<p>Best regards,</p>
<p>HPC User Support @ CINECA</p>
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