Upd:SuperMUC: scheduled maintenance Oct. 29 - 31

[LRZ aktuell]

 Changes to this message: Update
Update (Nov 1, 22:40):
 
 Due to problems with the inter-island communication after the switch
 firmware update, user operation is suspended. IBM and Mellanox are
 working on resolving the problems.
 
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 Between October 29, 8:00 and October 31, 18:00 the system will be
 unavailable for user operation. During this maintenance configuration
 changes and software updates will be installed which should improve
 stability of both Intel and IBM MPI operation.
 
 The following items are of particular interest:
 
   * IBM PE 1.2 PTF9. This update fixes a memory leak in the IBM MPI
     library as well as some problems with MPI-IO. Please remove any
     MP_MPILIB=pempi and/or MP_SHARED_MEMORY=no workaround settings from
     your LoadLeveler scripts, recompile, relink and rerun your
     application and check whether the problems are solved. Please
     provide feedback if this is not the case.
   * An update for the GPFS file system (although it is not expected
     that this update will solve all outstanding I/O problems).
   * Intel compilers (from 12.1.5 to 12.1.7 for the default release, and
     13.0 Update is available as a non-default release)
   * Intel MKL update (from 10.3u9 to 10.3u13)
 


 This information is also available on our web server
 http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4438/

 Reinhold Bader