Changes to this message: Update on Status Update (Feb 4, 2013, 14:40) Dear users of the SuperMUC system, IBM and LRZ have worked hard over the weekend to resolve all system stability issues caused by some of the maintenance activities last week. So far, we believe that almost all problems reported by users of the system in the last weeks should be resolved now. We ve also been able to clearly pinpoint one previously unknown problem with processing LoadLeveler job STDIN and STDOUT files in GPFS during our intensive test and debugging activities over the weekend. Therefore we recommend to forego using GPFS for these IO streams, and instead write them to your HOME directory. Please also place LoadLeveler output and error files inside your HOME directory. We expect the system to go online again this afternoon. We regret any inconvenience the extended maintenance activities may have caused, and hope for your understanding. ----------------------------------------------------------------------- Dear users of the SuperMUC petascale system at LRZ, Due to a combined hard- and software maintenance, SuperMUC will be unavailable for user operation between January 28, 8:00 and the afternoon of January 31. Jobs still running at the beginning of the maintenance will be cancelled. The following changes are introduced by this maintenance: * Access to the PRACE network will become available to PRACE users, * LoadLeveler mail notification will be activated, * Licence servers will be accessible from the compute nodes, * The Infiniband software stack will be updated to a newer release, * Some presently missing packages will become available on the compute nodes (e.g., you can remove the workaround for a missing libnuma.so) * Intel MPI: The newest 4.1 bug fix release is now used by default. * Intel MKL: The 11.0 release is now used by default. The old mkl/ 10.3 module is however still available if you see trouble with the new version. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4502/ Reinhold Bader