Aenderungen an der Mitteilung: Returned to user operation Update (Nov 28 9:05): The system has been returned to user operation: Login is possible again, and the queues are running. Please also note that the following new functionality is now available: * Intel MPI version 4.1 now works * TSM archiving is possible by logging in to supermuc-tsm.lrz.de. Please note that these special purpose nodes should be used only for archiving and retrieving data with TSM. Please do not use them to compile or run other programs, or to submit LoadLeveler jobs. Unfortunately, there still seem to occur occasional link failures that are not caught by the monitoring or the software, leading to occasional job failures. We are interested in obtaining feedback about failure rates - please report via the service desk, specifying job size in nodes or cores and percentage of failure with respect to number of jobs. ----------------------------------------------------------------------- Dear users of the SuperMUC petaflop system at LRZ, It has turned out that the electrical infrastructure that powers the system contains defective parts that need to be replaced. Unfortunately, this implies that electrical power must be shut off completely for a few days. Furthermore, LRZ needs to fulfill contractual obligations which involve measuring the energy consumption of specially chosen benchmarks on the complete system. These runs also need a few days of uninterrupted usage of the complete system. Therefore, the system will be unavailable for regular user operation between Sunday November 18, at 12:00 and November 28. If any further delays occur due to unforeseen side effects of the electrical works, we will keep you updated via this document. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4459/ Reinhold Bader