Upd:SuperMUC: Returned to user operation

[LRZ aktuell]

 Changes to this message: Returned to user operation
Dear users of the SuperMUC Petaflop system,
 
 The scheduled maintenance has been completed, and the system has been
 returned to user operation. Login to the machine is expected to be
 possible at ca. 17:30 on April 24.
 
 The changes to the system are as follows:
 
   * Updated operating environment (SLES11SP2). Please consult the
     release notes by SuSE/Novell at https://www.suse.com/releasenotes/
     x86_64/SUSE-SLES/11-SP2/for details. In particular, we expect that
     the Transparent Huge Pages support should give a performance
     improvement for many applications. Please provide feedback if you
     happen to observe the opposite effect for yours! Also, some
     applications may require significantly more memory, so again please
     report to us if an application fails with allocation errors that
     used to run fine before.
   * Bug fix update for the MKL libraries
   * Bug fix and minor feature update of the (non-default) Intel
     compiler version 13.1
   * Bug fix update for Intel MPI 4.1 (MPI_Abort() now should really
     terminate the complete job). However, Intel MPI 4.0 (and earlier)
     should not be used under this new environment any more.
 
 Please note that we expect existing binaries to still run correctly in
 the new environment. Should this not be the case, please recompile your
 executable and resubmit your job(s) before opening an incident at our
 service desk.


 This information is also available on our web server
 http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4557/

 Reinhold Bader