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Netzwartung am 16.7.
by LRZ aktuell July 15, 2013

July 15, 2013

WLAN Zwischen 8:30 Uhr und 9:00 Uhr wird ein zweiter neuer Controller fuer die Accesspoints von Alcatel-Lucent in Betrieb genommen. Dabei kann es bei den Accesspoints von Alcatel-Lucent zu Stoerungen kommen. Von Alcatel-Lucent sind im Wesentlichen alle in den letzten drei Monaten neu installierten oder getauschten Accesppoints. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4622/ Wolfgang Beyer

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Upd:SuperMUC: Interruption of batch processing July 9-11
by LRZ aktuell July 11, 2013

July 11, 2013

Changes to this message: Update Update: The Workshop has been successfully finished and the system is back in normal operation. Due to some LoadLeveler problems over the last days we kindly ask you to check the status of your queued jobs. Thanks for your patience. ----------------------------------------------------------------------- Dear users of the SuperMUC Petaflop System, due to a scheduled block operation phase, SuperMUC will not be available for general batch processing between Tuesday, July 9, 8:00 and Thursday, July 11, 18:00. On Tuesday, approximately half the machine will be flushed, the other half will be flushed early on Wednesday. Flushed jobs for which the default rerun policy was specified, or for which restart is explicitly requested, will restart after the block operation phase is concluded. Login to the front end and submission of small jobs to the test queue will continue working during this period. The migration system supzero is not impacted by the interruption. The purpose of the block operation is focused work on scaling up selected simulation programs to the complete machine in the context of an Extreme Scaling Workshop; LRZ thanks IBM and Intel for providing specialist support for this opportunity. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4617/ Reinhold Bader

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Upd:SuperMUC/MIG: Interruption of operation due to integration of the fat node island
by LRZ aktuell July 10, 2013

July 10, 2013

Changes to this message: Prolongation of SuperMUC interruption Update: The SuperMUC interruption has been prolonged from 2 to 3 days. ----------------------------------------------------------------------- Dear users of SuperMUC and the migration system supzero, we are now (with considerable delay) preparing to integrate the migration system supzero into the SuperMUC system. In order to complete the integration work, both SuperMUC and the migration system will require scheduled maintenance phases: 1. On July 16, 08:00, SuperMIG (supzero) will be shut down. Two weeks later, it will return as SuperMUC's fat-node island. During this period there will be no user operation on this part of the system. 2. From July 17, 08:00 to July 19, 18:00, SuperMUC will not be available for user operation, too. Please note that any LoadLeveler jobs on supzero that have not completed when the maintenance starts will be lost. After the maintenance, the fat node island will use the same Loadleveler instance, operating environment and GPFS file system as presently available on SuperMUC. Details on the changes in using the fat island as well as how to deal with the existing data on SCRATCH and WORK will be separately published; the system documentation will be accordingly updated. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4619/ Reinhold Bader

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Workshop of the Virtual Institute - High Productivity Supercomputing (VI-HPS)
by LRZ aktuell July 10, 2013

July 10, 2013

================== CALL FOR ABSTRACTS =============================== Apologies if you receive multiple copies of this CfA. Please share the announcement below with those who may be interested. ********************************************************************* CALL FOR ABSTRACTS: DEADLINE EXTENDED ********************************************************************* Workshop of the Virtual Institute - High Productivity Supercomputing (VI-HPS) in collaboration with the German Priority Programme "Software for Exascale Computing" (SPPEXA) on EXTREME-SCALE PROGRAMMING TOOLS at Supercomputing Conference (SC) 2013 November 18th, 2013 Denver, Colorado, USA http://www.vi-hps.org/events/other/espt-sc13.html Extended submission deadline: July 15th, 2013 ********************************************************************* You are cordially invited to submit one page abstract about relevant and unpublished work to the Extreme-Scale Programming Tools workshop to be held at Supercomputing Conference 2013. The Workshop aims at repeating the success of the predecessor workshop held at SC12. Selected authors will be invited to give a 15 minutes talk followed by 5 minutes discussion. The slides will be made public on the workshop website, however no proceedings are planned. ********************************************************************* Workshop abstract: As we approach exascale, architectural complexity and severe resource limitations with respect to power, memory and I/O, make tools support in debugging and performance optimization more critical than ever before. However, the challenges mentioned above also apply to tools development and, in particular, raise importance of topics, such as automatic tuning and methodologies for exascale tools-aided application development. This workshop will serve as a forum for application, system, and tool developers to discuss the requirements for future exascale-enabled tools and the roadblocks that need to be addressed on the way. We also highly encourage application developers to share their experiences with using the tools. The workshop is organized by the Virtual Institute - High Productivity Supercomputing in collaboration with the German Priority Programme "Software for Exascale Computing" (SPPEXA). The event will also focus on the community-building process necessary to create an integrated tools-suite ready for an exascale software stack. ********************************************************************* Workshop topics: * Programming Tools, for instance, Performance Analysis and Tuning Tools, Debuggers, IDEs * Methodologies for Performance Engineering * Tool Technologies Tackling Extreme-Scale Challenges, such as Scalability, Resilience, etc. * Tool Infrastructures * Application Developer Experiences with Programming Tools ********************************************************************* Submission details: Please submit the title and one page abstract until July 15th, 2013 using the following link: https://www.easychair.org/conferences/?conf=espt2013 ********************************************************************* Travel support: A limited amount of travel grants will be awarded to the participants selected based on the submitted abstracts with preference to be given to SPPEXA doctoral candidates, early-career and female researchers. The travel grants cover a flight in 2nd class and the SC workshop fee (in total not more then 1300 USD). Applications should be submitted to oleynik(a)in.tum.de and mention whether any of the preference criteria mentioned above apply. Please also provide an estimate of the required travel support. ********************************************************************* Program committee: Michael Gerndt, Technical University of Munich Felix Wolf, German Research School for Simulation Sciences Bettina Krammer, MoRitS, Bielefeld University & University of Applied Sciences Bielefeld Dieter an Mey, RWTH Aachen University Wolfgang E. Nagel, Technical University of Dresden Martin Schulz, Lawrence Livermore National Laboratory Sameer Shende, University of Oregon Brian Wylie, Juelich Supercomputing Centre ********************************************************************* Contact person: Yury Oleynik (oleynik(a)in.tum.de) ================== END: CALL FOR ABSTRACTS =========================== This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4621/ Carla Guillen

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Netzwartung am 9.7.
by LRZ aktuell July 8, 2013

July 8, 2013

1. WLAN Zwischen 8:30 Uhr und 9:00 Uhr werden die Controller fuer die Accesspoints von Alcatel-Lucent gegen leistungsfaehigere Geraete getauscht. Dabei wird jeder A/L-Accesspoint neu booten. Diese sind in der Marsstrasse 20 (alle), aber auch an einigen anderen Standorten im Einsatz. Im TUM Stammgelaende Gebaeude 2 wird ausserdem zwischen 8:00 Uhr und 9:00 Uhr der Switch sws1-3bc getauscht, an welchem einige Accesspoints betrieben werden. 2. Webdns-Dienst Der Webdns-Dienst fuer Netzverantwortliche wird wegen eines Software- Updates von 8:15 Uhr bis 8:45 Uhr nicht zur Verfuegung stehen. Der DNS-Dienst selbst wird nicht beeintraechtigt sein. 3. TUM Weihenstephan Geb. 4212 (Physik, Chemie, Zentrallaboratorium) Hier wird um ca. 7:00 Uhr der Switch swn2-kq8 gebootet. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4620/ Wolfgang Beyer

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SuperMUC/MIG: Interruption of operation due to integration of the fat node island
by LRZ aktuell July 3, 2013

July 3, 2013

Dear users of SuperMUC and the migration system supzero, we are now (with considerable delay) preparing to integrate the migration system supzero into the SuperMUC system. In order to complete the integration work, both SuperMUC and the migration system will require scheduled maintenance phases: 1. On July 16, 08:00, SuperMIG (supzero) will be shut down. Two weeks later, it will return as SuperMUC's fat-node island. During this period there will be no user operation on this part of the system. 2. From July 17, 08:00 to July 18, 18:00, SuperMUC will not be available for user operation, too. Please note that any LoadLeveler jobs on supzero that have not completed when the maintenance starts will be lost. After the maintenance, the fat node island will use the same Loadleveler instance, operating environment and GPFS file system as presently available on SuperMUC. Details on the changes in using the fat island as well as how to deal with the existing data on SCRATCH and WORK will be separately published; the system documentation will be accordingly updated. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4619/ Reinhold Bader

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Upd:GPFS problems
by LRZ aktuell July 1, 2013

July 1, 2013

Aenderungen an der Mitteilung: Update Update: The problems with GPFS have been solved, the system is back in normal operation. ----------------------------------------------------------------------- Dear users of SuperMUC, due to problems with the GPFS we have limited service in operation at the moment. IBM is working on the problem. We keep you updated. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4618/ Alexander Block

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GPFS problems
by LRZ aktuell July 1, 2013

July 1, 2013

Dear users of SuperMUC, due to problems with the GPFS we have limited service in operation at the moment. IBM is working on the problem. We keep you updated. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4618/ Alexander Block

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SuperMUC: Interruption of batch processing July 9-11
by LRZ aktuell July 1, 2013

July 1, 2013

Dear users of the SuperMUC Petaflop System, due to a scheduled block operation phase, SuperMUC will not be available for general batch processing between Tuesday, July 9, 8:00 and Thursday, July 11, 18:00. On Tuesday, approximately half the machine will be flushed, the other half will be flushed early on Wednesday. Flushed jobs for which the default rerun policy was specified, or for which restart is explicitly requested, will restart after the block operation phase is concluded. Login to the front end and submission of small jobs to the test queue will continue working during this period. The migration system supzero is not impacted by the interruption. The purpose of the block operation is focused work on scaling up selected simulation programs to the complete machine in the context of an Extreme Scaling Workshop; LRZ thanks IBM and Intel for providing specialist support for this opportunity. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4617/ Reinhold Bader

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Netzwartung am 2.7.
by LRZ aktuell July 1, 2013

July 1, 2013

1. TUM Weihenstephan Geb. 4212 (Zentrallaboratorium) Von 8:00 Uhr bis ca. 8:15 Uhr wird die Gebaeudeanbindung wegen des Austausches eines Moduls des Switches swn2-0q8 ausfallen. 2. LMU Planegg, Fraunhofer Str. 12 Zwischen 8:00 Uhr und 9:00 Uhr wird der Switch swv1-5xp ausgetauscht. 3. Alle ueber M-net SDSL-Leitungen angeschlossenen Gebaeude (17 kleinere Standorte) M-net hat fuer die Zeit zwischen 5:00 Uhr und 6:00 Uhr einen Ausfall von ca. 30 Minuten Dauer angekuendigt. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4616/ Wolfgang Beyer

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