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Upd:Linux-Cluster: Completion of ICE maintenance delayed
by LRZ aktuell Aug. 29, 2011

Aug. 29, 2011

Changes to this message: Maintenance extended Update: Due to the large workload involved in integrating the new resources into the Linux cluster, as well as the personnel vacation situation at LRZ, returning the sgi ICE system to user operation is delayed.We hope to start production again on September 7 (this target date has also been updated below). Please note that the new MPP cluster has been opened for general user operation, and provides resources on a larger scale than the ICE. Submission of batch jobs is documented in http://www.lrz.de/services/compute/linux-cluster/batch_parallel/ ----------------------------------------------------------------------- The SGI ICE system will be unavailable for regular user operation between 22nd and 7th of September, 2011. This is due to an operating system and batch queueing upgrade. After this extended maintenance, the system will be run in a SLURM cell of the Linux Cluster; please consult the cluster documentation at http://www.lrz.de/services/compute/ linux-cluster/ for upcoming details on this new batch software deployed on the parallel segments of the LRZ cluster. Submission of SGE jobs to the ICE will not work anymore after the upgrade. After the upgrade, it is recommended that you perform the following measures: * recompile and relink your programs using the new sgi MPT release * modify your batch scripts to use SLURM instead of SGE This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4083/ Reinhold Bader

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Upd:Update: HLRB-II login node down again
by LRZ aktuell Aug. 29, 2011

Aug. 29, 2011

Changes to this message: Update Dear users of HLRB-II, the login partition of HLRB-II crashed again. SGI support is already working on the problem. 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 interrupt. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4095/ Hans-Georg Kleinhenz

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Upd:Update: HLRB-II login node back in production
by LRZ aktuell Aug. 29, 2011

Aug. 29, 2011

Changes to this message: Update Dear users of HLRB-II, the problems on the the login node of HLRB-II have been fixed and it is back in production. 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/hlrb/aktuell/ali4095/ Hans-Georg Kleinhenz

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Netzwartung am 30.08.2011
by LRZ aktuell Aug. 29, 2011

Aug. 29, 2011

Am 30.08.2011 werden folgende Wartungsarbeiten durchgefuehrt: Wo : LRZ-Secomat-Cluster Was : Weiterer Versuch den Secomat-Cluster zu erweitern. Betroffen sind priv. IP-Adressen im MWN. Bei planmaessigem Verlauf kommt es zu keinen Ausfaellen. Wann: Dienstag, 30.08.2011 zwischen 7:30 Uhr - 8:30 Uhr Wo : Gabelsbergerstr. 45, 3. Stock Was : Umorganisation der Netzstruktur (Switches) Es kommt zu kurzen Unterbrechungen. Wann: Dienstag, 30.08.2011 zwischen 08:00 - 09:30 Uhr Wo : Garching Physik Department, 3. Stock Was : Strukturverbesserung. (Switches) Es kommt zu kurzen Unterbrechungen. Wann: Dienstag, 30.08.20114 zwischen 08:00 - 09:30 Uhr Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4096/ Markus Meschederu

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HLRB-II login node down
by LRZ aktuell Aug. 29, 2011

Aug. 29, 2011

Dear users of HLRB-II, the login node of HLRB-II is currently down. SGI support is already working on the problem. 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 interrupt. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4095/ Hans-Georg Kleinhenz

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Linux CLuster: Ultraviolet reboot
by LRZ aktuell Aug. 29, 2011

Aug. 29, 2011

The Ultraviolet system has run into trouble with its CPUset coordination and therefore needed a reboot. Jobs running on the system during the weekend may require a resubmission. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4094/ Reinhold Bader

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Upd:HLRB-II: mostly returned to user operation
by LRZ aktuell Aug. 26, 2011

Aug. 26, 2011

Aenderungen an der Mitteilung: mostly running again Dear users of the HLRB-II at LRZ, due to problems with the CXFS scratch file systems HLRB-II is presently not usable. We expect to return to user operation at approx. 17:30 on Aug. 26. Apologies for the disruption of your work. ----------------------------------------------------------------------- Update (18:30): the system has mostly been returned to user operation Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4093/ Reinhold Bader

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Upd:Linux Cluster: SLURM submissions should work again
by LRZ aktuell Aug. 26, 2011

Aug. 26, 2011

Changes to this message: Update Dear users of the new IB cluster at LRZ, Unfortunately, something has gone wrong with the SLURM configuration - submission of jobs does not work correctly. Please stay tuned. ----------------------------------------------------------------------- Update: A workaround has been installed which enforces certain settings, so you should be able to run jobs again. However, some jobs still may run into problems - please tell us if this is the case. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4092/ Reinhold Bader

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HLRB-II: unavailable due to CXFS recovery
by LRZ aktuell Aug. 26, 2011

Aug. 26, 2011

Dear users of the HLRB-II at LRZ, due to problems with the CXFS scratch file systems HLRB-II is presently not usable. We expect to return to user operation at approx. 17:30 on Aug. 26. Apologies for the disruption of your work. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/hlrb/aktuell/ali4093/ Reinhold Bader

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Upd:Linux Cluster: New IB cluster / SLURM not working
by LRZ aktuell Aug. 26, 2011

Aug. 26, 2011

Changes to this message: SLURM not working Dear users of the new IB cluster at LRZ, Unfortunately, something has gone wrong with the SLURM configuration - submission of jobs does not work correctly. Please stay tuned. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4092/ Reinhold Bader

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