April 2012 - aktuell - lists.lrz.de

Upd:Linux-Cluster: Mostly returned to user operation
by LRZ aktuell April 27, 2012

April 27, 2012

Changes to this message: UV3 available again Update: The cluster and visualization systems are mostly available again, with the following exception: * 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

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PRACE Preparatory Access Call for Tier-0
by LRZ aktuell April 27, 2012

April 27, 2012

Preparatory access is intended for testing and developing codes in order to prepare applications for PRACE Tier-0 project access. In particular, we would like to draw your attention to the Preparatory Access Type C which includes code development with support from PRACE experts. Further information is given on the PRACE web page http://www.prace-ri.eu/Call-Announcements The Preparatory Access Call is a rolling call, researchers can apply for resources all year. There are no closing dates, proposals will be reviewed every third month. The next cutoff date is June 1 2012. LRZ invites all interested scientists, whose projects fit the criteria of the PRACE calls to submit their projects. Further information about PRACE calls as well as information on the PRACE machines, can be found at http://www.prace-ri.eu/ If you need some extra information please feel free to contact PRACE directly via peer-review(a)prace-ri.eu or weinberg(a)lrz.de This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4297/ Volker Weinberg

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Upd:SuperMIG back in production (TSM also available now)
by LRZ aktuell April 27, 2012

April 27, 2012

Changes to this message: Update Dear users of SuperMIG, the power cut-off tests and SuperMIG maintenance are completed and the system is back in production. Update: The move of the TSM server into another computer room is also finished and TSM is available on SuperMIG. We apologize for the inconvenience caused by this interrupt. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4294/ Hans-Georg Kleinhenz

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Upd:SuperMIG back in production (TSM not available)
by LRZ aktuell April 26, 2012

April 26, 2012

Changes to this message: Update Dear users of SuperMIG, the power cut-off tests and SuperMIG maintenance are completed and the system is back in production. TSM is not yet available on SuperMIG, since the TSM server is being moved into another computer room. We expect TSM to become available tomorrow (April 27th) and will give you an update through this ALI. We apologize for the inconvenience caused by this interrupt. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4294/ Hans-Georg Kleinhenz

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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

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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

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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

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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

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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

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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

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