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2015-08-26T12:28:24Z

Created page with " === What you will learn on this page === As of CRAB_2_7_4_pre2, we found a way to adapt CRAB for local PBS submission in our Tier2. This adaptation mainly involves bringing ..."

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=== What you will learn on this page ===
As of CRAB_2_7_4_pre2, we found a way to adapt CRAB for local PBS submission in our Tier2. This adaptation mainly involves bringing a few changes in the code of CRAB. We will describe here the full procedure to adapt CRAB for local PBS submission to our Tier2.

=== Pre-requisites ===
The i386 version of libtorque (libtorque.so.2.0.0) must be present in /usr/lib/, as well as a symbolic link libtorque.so.2 pointing to it. As this library is not installed on SL5 UIs, you have to copy it from an SL4 UI and create the symbolic link manually.

=== Adding the Python PBS module to CRAB ===
The method to compile and to add the pbs_python module to CRAB is described [https://twiki.cern.ch/twiki/bin/viewauth/CMS/SWGuideCrabPbs here].

If you are in a hurry, you will find below in the attachments a ready-to-use compiled release of pbs_python version 3.2.0. Just untar it and copy the files in :
<pre>
$CRABDIR/external/pbs_python/3.2.0/lib/python2.4/site-packages/pbs
</pre>

=== Changing a few things in the CRAB code ===
There are three files to change :
<pre>
/user/cmssoft/crab/CRAB_X_Y_Z_IIHE/external/ProdCommon/BossLite/Scheduler/SchedulerPbs.py
/user/cmssoft/crab/CRAB_X_Y_Z_IIHE/python/SchedulerLocal.py
/user/cmssoft/crab/CRAB_X_Y_Z_IIHE/python/cmscp.py
</pre>
If you want to see what is to change in the code, you can consider CRAB_2_7_4_IIHE as a reference. In the attachment, you will find the three diff files made between CRAB_2_7_4 and CRAB_2_7_4_IIHE for the three files above.
=== Useful links ===
Official information about CRAB and local PBS submission can be found here :
https://twiki.cern.ch/twiki/bin/viewauth/CMS/SWGuideCrabPBS

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Maintenance script: Created page with " === What you will learn on this page === As of CRAB_2_7_4_pre2, we found a way to adapt CRAB for local PBS submission in our Tier2. This adaptation mainly involves bringing ..."