June 2011 - aktuell - lists.lrz.de

Netzwartung am 21.6.
by LRZ aktuell June 20, 2011

June 20, 2011

LMU Schellingstrasse 3 Ab 7:30 Uhr werden die Switches swg1-kgr und swg2-kgr ersetzt. Bis ca. 12:00 Uhr kann es zu kurzen Unterbrechungen kommen. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4043/ Wolfgang Beyer

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Upd:HLRB-II login node back in production
by LRZ aktuell June 16, 2011

June 16, 2011

Changes to this message: Update Dear users of HLRB-II, the the problems on the login node of HLRB-II have been fixed and it is back production. We apologize for the inconvenience caused by this downtime. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4042/ Hans-Georg Kleinhenz

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Upd:Linux-Cluster: returned to regular operation after further power outage
by LRZ aktuell June 16, 2011

June 16, 2011

Changes to this message: Recovering from outage Dear users of the linux-cluster at the LRZ, due to a power outage that affects the central cluster switch and most of the compute nodes, the linux cluster is not operable in the moment. The facility managment is working to resolve the problem. We apologize for any inconvenience caused hereby. ----------------------------------------------------------------------- Update (June 16, 10:30): A second power outage has again caused the cluster to go offline. We are working on a reconfiguration of the power lines which hopefully will circumvent the problem until the root cause is fixed. ----------------------------------------------------------------------- Update (June 16, 12:45): Since 12:00 the cluster is in regular operation again. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4040/ Michael Bopp, Reinhold Bader

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HLRB-II login node down
by LRZ aktuell June 16, 2011

June 16, 2011

Dear users of HLRB-II, the login node of HLRB-II is currently down. Please use the alternate login node login2.hlrb2.lrz-muenchen.de to access your data and to submit jobs. We apologize for the inconvenience caused by this downtime. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4042/ Hans-Georg Kleinhenz

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Upd:Linux-Cluster: Another power outage
by LRZ aktuell June 16, 2011

June 16, 2011

Changes to this message: Second power failure on June 16 at 10:30 Dear users of the linux-cluster at the LRZ due to a power outage that affects the central cluster switch and most of the compute nodes, the linux cluster is not operable in the moment. The facility managment is working to resolve the problem. We apologize for any inconvenience caused hereby. ----------------------------------------------------------------------- Update (June 16, 10:30): A second power outage has again caused the cluster to go offline. We are working on a reconfiguration of the power lines which hopefully will circumvent the problem until the root cause is fixed. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4040/ Michael Bopp, Reinhold Bader

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Upd:Linux-Cluster: Interruption caused by power outage ended
by LRZ aktuell June 15, 2011

June 15, 2011

Changes to this message: Update Dear users of the linux-cluster at the LRZ due to a power outage, that affects the central cluster switch and most of the compute nodes, the linux cluster is not operable in the moment. The facility managment is working to resolve the problem. We apologize for any inconvenience caused hereby. ----------------------------------------------------------------------- Update, 9:15 o'clock: The power infrastructure is in normal operation. Part of the linux-cluster is operating. The remaining parts will be brought to normal user operation. ----------------------------------------------------------------------- Update, 15:15 o'clock: The linux-cluster is back in normal user operation. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4040/ Michael Bopp

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PRACE Summer School in Finland
by LRZ aktuell June 15, 2011

June 15, 2011

PRACE Summer School: Taking the Most Out of Supercomputers ========================================================== PRACE, the Partnership for Advanced Computing in Europe organizes a summer school on 29 August to 1 September 2011 in Espoo, Finland. The school will be hosted by CSC - IT Center for Science Ltd and co-organized together by CSC and the PDC supercomputing centre in Stockholm, Sweden. In this four-day event the participants will learn advanced parallel programming skills, which are necessary for taking the most out of the largest (Tier-0) supercomputers the PRACE Research Infrastructure is offering for European scientists and engineers. The speaker list includes William Gropp (University of Illinois Urbana-Champaign), one of the key authors of MPI (Message Passing Interface) programming paradigm, and Rolf Rabenseifner (HLRS), one of the most renowned researchers of hybrid parallel programming models. In addition, the following topics will be covered: programming GPGPU clusters with CUDA+MPI, low-level single-core performance optimization as well as using the Python programming language in supercomputing. The largest supercomputers in Scandinavia, i.e. the brand new Cray XE6 system at PDC and CSC's Cray XT4/XT5 system Louhi will be in disposal of the participants. Attendance is free of charge for all academics affiliated to PRACE member countries. For further details and a registration please visit http://www.csc.fi/courses/archive/prace-summer-school This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4041/ Alexander Block

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Upd:Linux-Cluster: Interruption caused by power outage
by LRZ aktuell June 15, 2011

June 15, 2011

Changes to this message: Update Dear users of the linux-cluster at the LRZ due to a power outage, that affects the central cluster switch and most of the compute nodes, the linux cluster is not operable in the moment. The facility managment is working to resolve the problem. We apologize for any inconvenience caused hereby. ----------------------------------------------------------------------- Update, 9:15 o'clock: The power infrastructure is in normal operation. Part of the linux-cluster is operating. The remaining parts will be brought to normal user operation. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4040/ Michael Bopp

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Linux-Cluster: Interruption caused by power outage
by LRZ aktuell June 15, 2011

June 15, 2011

Dear users of the linux-cluster at the LRZ due to a power outage, that affects the central cluster switch and most of the compute nodes, the linux cluster is not operable in the moment. The facility managment is working to resolve the problem. We apologize for any inconvenience caused hereby. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4040/ Michael Bopp

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Stromabschaltung in Weihenstephan am 17.6.
by LRZ aktuell June 14, 2011

June 14, 2011

Das Immobilienmanagement der TUM hat angekuendigt, dass am kommenden Freitag, den 17.06.2011 ab 14:00 Uhr in folgenden Gebaeuden fuer ca. 5 Stunden der Strom abgeschaltet werden wird: 4220 Bibliothek, Maximus-von-Imhof-Forum 1 4220 ITW, Maximus-von-Imhof-Forum 3 4216 Mensa, Maximus-von-Imhof-Forum 5 Durch den Ausfall der Server in der Bibliothek kann der Netzbetrieb auch in weiteren Gebaeuden beeintraechtigt sein. Die Abschaltung ist aus Sicherheitsgruenden wegen des Umbaus in der Mensa notwendig. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4039/ Wolfgang Beyer

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