- aktuell - lists.lrz.de

Upd:Linux-Cluster: Mostly returned to user operation
by LRZ aktuell April 26, 2012

April 26, 2012

Changes to this message: Mostly available again Update: The cluster and visualization systems are mostly available again, with the following exceptions * uv3 could not be started and will be repaired as soon as possible * the Myrinet cluster is under maintenance as indicated below and will not be available again before early next week. The login nodes lx64ia2 and lx64ia3 are available for submission of SGE jobs; however Parastation MPI will not run on lx64ia2 any more. Please login to the MPP cluster and build and run your programs from there as indicated in the cluster docs. ----------------------------------------------------------------------- Dear users of the Cluster systems at LRZ, as announced in http://www.lrz.de/aktuell/ali4261/ user operation on the cluster will be interrupted due to an electrical power shutdown test which affects all storage systems. In order to cleanly shut down all accesses to the storage systems, we have already started to drain the SLURM queues and all running jobs will be removed from 4:30 pm onwards. Please also note that after this interruption, the SGE queues mpi_8, shm_8, mpi_32 and shm_32 will become permanently unavailable because the systems will be upgraded and moved to SLURM. The SLURM documentation will be appropriately updated as soon as this upgrade is completed. We will keep you up-to-date about the status of the cluster via this document. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4295/ Reinhold Bader

1 0

Upd:Linux-Cluster: Mostly returned to user operation
by LRZ aktuell April 26, 2012

April 26, 2012

Changes to this message: Mostly available again Update: The cluster and visualization systems are mostly available again, with the following exceptions * uv3 could not be started and will be repaired as soon as possible * the Myrinet cluster is under maintenance as indicated above and will not be available again before early next week. The login nodes lx64ia2 and lx64ia3 are available for submission of SGE jobs; however Parastation MPI will not run on lx64ia2 any more. Please login to the MPP cluster and build and run your programs from there as indicated in the cluster docs. ----------------------------------------------------------------------- Dear users of the Cluster systems at LRZ, as announced in http://www.lrz.de/aktuell/ali4261/ user operation on the cluster will be interrupted due to an electrical power shutdown test which affects all storage systems. In order to cleanly shut down all accesses to the storage systems, we have already started to drain the SLURM queues and all running jobs will be removed from 4:30 pm onwards. Please also note that after this interruption, the SGE queues mpi_8, shm_8, mpi_32 and shm_32 will become permanently unavailable because the systems will be upgraded and moved to SLURM. The SLURM documentation will be appropriately updated as soon as this upgrade is completed. We will keep you up-to-date about the status of the cluster via this document. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4295/ Reinhold Bader

1 0

PRACE Scientific Conference 2012 on June 17, 2012 @ ISC'12 in Hamburg
by LRZ aktuell April 25, 2012

April 25, 2012

The 2012 PRACE Scientific Conference will be held on Sunday, June 17, in Hamburg, Germany. Top European scientists will highlight advances in large scale simulation and key results obtained with support by PRACE, the Partnership for Advanced Computing in Europe. The European Commission and the PRACE director will present Europe s vision for HPC. Scientist and researchers from academia and industry are cordially invited to participate, learn from colleagues what can be achieved using PRACE services and indentify opportunities for future PRACE supported projects. The programme will include a short meeting of the User Forum which will provide an opportunity for users and those considering applying for PRACE resources to discuss issues with the PRACE management and members of the Scientific Steering Committee. This year PRACE partners with ISC, the International Supercomputing Conference, maximizing the value for PRACE and ISC 12 attendees. Participation in the PRACE programme on Sunday is free of charge. However, all participants should register via the ISC registration. After the end of the sessions PRACE and ISC invite you to an informal get-together with colleagues from Asia-Pacific participating in the Asia-Pacific day organised in parallel by ISC. For more information please visit http://www.prace-ri.eu/PRACE-Day-2012?lang=en or contact praceday2012-oc(at)fz-juelich.de This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4296/ Alexander Block

1 0

Linux-Cluster: Interruption of operation (reminder)
by LRZ aktuell April 25, 2012

April 25, 2012

Dear users of the Cluster systems at LRZ, as announced in http://www.lrz.de/aktuell/ali4261/ user operation on the cluster will be interrupted due to an electrical power shutdown test which affects all storage systems. In order to cleanly shut down all accesses to the storage systems, we have already started to drain the SLURM queues and all running jobs will be removed from 4:30 pm onwards. Please also note that after this interruption, the SGE queues mpi_8, shm_8, mpi_32 and shm_32 will become permanently unavailable because the systems will be upgraded and moved to SLURM. The SLURM documentation will be appropriately updated as soon as this upgrade is completed. We will keep you up-to-date about the status of the cluster via this document. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4295/ Reinhold Bader

1 0

SuperMIG unavailable (reminder and update)
by LRZ aktuell April 25, 2012

April 25, 2012

Dear users of SuperMIG, the power cut-off tests announced in http://www.lrz.de/aktuell/ali4261/ will also cause an interruption of service for SuperMIG, since the NAS filesystems will not be available. Access to SuperMIG will not be possible from March 25th, 17:00 until March 26th, 18:00. The downtime will also be used to perform the regular sytem maintenance. We apologize for the inconvenience caused by this interrupt and will inform you through this ALI when the system is back in production. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4294/ Hans-Georg Kleinhenz

1 0

Upd:Linux Cluster: Delays in returning to user operation
by LRZ aktuell April 23, 2012

April 23, 2012

Aenderungen an der Mitteilung: Update Dear users of the cluster systems, Due to some necessary configuration changes on the cluster systems and some technical problems, the following segments of the clusters have up to now been returned to user operation: * MPP cluster (fully available again, including the login node lxia4-1) * UV systems * ICE system * serial SGE queues The BSB segment is still unavailable, because problems have arisen with booting the systems, which must be resolved. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/aktuell/ali4291/ Reinhold Bader

1 0

Netzwartung am 24.4.
by LRZ aktuell April 23, 2012

April 23, 2012

1. LMU Leopoldstrasse 13 Zwischen 7:30 Uhr und 8:00 Uhr wird der Switch swz2-kla getauscht. 2. TUM Weihenstephan Geb. 4378 Um ca. 8:00 Uhr wird der Switch swg1-0pa gebootet und auf eine neue Leitung umgehaengt. 3. Diverse Standorte Zwischen 6:00 Uhr und 9:00 Uhr werden die Switches in folgenden Standorten mit neuer Software geladen: Oberschleissheim, Ludwigstr. 28 RG, Baumbachstr., Leopoldstr. 139, Garching Exzellenzzentrum, Gasteig, Schwere-Reiter-Str., Maria-Theresia- Str., ini.tum, IWB Augsburg, Schwabinger Krankenhaus, Eichenau. Wohnheime: Schwere-Reiter-Str., Spanisches Kolleg, Chiemgaustr., Adelheidstr., Tuerkenstr., Heidemannstr., Stiftsbogen, Felsennelkenanger. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4293/ Wolfgang Beyer

1 0

Upd:Linux Cluster: Delays in returning to user operation
by LRZ aktuell April 19, 2012

April 19, 2012

Aenderungen an der Mitteilung: SGE serial nodes back in operation Dear users of the cluster systems, Due to some necessary configuration changes on the cluster systems and some technical problems, only the following segments of the clusters have up to now been returned to user operation: * MPP cluster (partially, in particular the interactive partition is not yet available) * UV systems * ICE system * serial SGE queues It may still take some time to properly restart the other segments. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/aktuell/ali4291/ Reinhold Bader

1 0

Upd:Linux Cluster: Delays in returning to user operation
by LRZ aktuell April 19, 2012

April 19, 2012

Aenderungen an der Mitteilung: Update Dear users of the cluster systems, Due to some necessary configuration changes on the cluster systems and some technical problems, only the following segments of the clusters have up to now been returned to user operation: * MPP cluster (partially, in particular the interactive partition is not yet available) * UV systems * ICE system It may still take some time to properly restart the other segments. ----------------------------------------------------------------------- Update: Due to stability issues with SGE, the LCG systems have been taken offline again, and SGE operation is generally suspended. ----------------------------------------------------------------------- Update: The stability issues with SGE have been resolved. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/aktuell/ali4291/ Reinhold Bader

1 0

Upd:Linux Cluster: Delays in returning to user operation
by LRZ aktuell April 18, 2012

April 18, 2012

Aenderungen an der Mitteilung: LCG offline again Dear users of the cluster systems, Due to some necessary configuration changes on the cluster systems and some technical problems, only the following segments of the clusters have up to now been returned to user operation: * MPP cluster (partially, in particular the interactive partition is not yet available) * UV systems * ICE system It may still take some time to properly restart the other segments. ----------------------------------------------------------------------- Update: Due to stability issues with SGE, the LCG systems have been taken offline again, and SGE operation is generally suspended. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/aktuell/ali4291/ Reinhold Bader

1 0