(r1) CBCatBologna < RmiVirgo

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---++ How to run analysis pipelines at Bologna (CNAF) computer center

Perform the following steps:

   1
     Logg in to one of the following machines
     <verbatim>
     ui01-virgo.cr.cnaf.infn.it.
     ui02-virgo.cr.cnaf.infn.it.
    </verbatim>   
     These are the User Interface machine which
     shares the following directories with the
    Worker Nodes:
   <verbatim>
    /storage/gpfs_virgo3/home
    /storage/gpfs_virgo3/scratch
    /storage/gpfs_virgo3/virgo
  </verbatim>
    If possible use the scratch area, since it is world readable.
   1
    Change to one of the shared directories.
   <verbatim>
    (cmd.: cd /storage/gpfs_virgo3/home/gdebrecz)
    </verbatim>
   1
    Create a new directory, and enter into it.
    <verbatim>
    (cmd.: mkdir mywd; cd mywd)
    </verbatim>
   1
    *IMPORTANT:* Set the file creation mask to 0002, i.e.
    the files you are creating from now on
    will be group writeable.
    <verbatim>
   (cmd.: umask 0002)
    </verbatim>
   1
   Source VIRGO environment setting file:
    <verbatim>
   (cmd.:  . /opt/exp_software/virgo/lscsoft/etc/virgoenv.sh)
    </verbatim>
   1
    Launch some condor test job and check whether it works fine or not.
    <verbatim>
    (cmd:.
    cp /storage/gpfs_virgo3/home/gdebrecz/condortest/* .
    condor_submit vog-testjob.des
    )
    </verbatim>
   1
     If the testjobs finished OK, then from this point on you can
     do everything in the same way as on other clusters.
   Except the fact, that you have to copy the
    <verbatim>
    /opt/exp_software/virgo/lscsoft/etc/LSCdataFind
     </verbatim>
    executable and overwrite the one comes with the standard
    LSCsoft installation !

 *BE AWARE*, that all your files and software _should be installed
 on the shared areas_ and should be group read/writeable so that
 your jobs on the Worker Nodes - which are running as a different user -
 could access it !

-------------

Notes:

   1 You can find a test installation as an example here:
    <verbatim>
    /opt/exp_software/virgo/lscsoft/
    </verbatim>
    and have a look to
     <verbatim>
    /opt/exp_software/virgo/lscsoft/etc/s5grbenv.sh
     </verbatim>
    to see how I source the various files.

   1 The system python installation should not be used,
  use the one installed in the above software area !


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Topic revision: r1 - 2009-09-03 - GergelyDebreczeni

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