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Job Vacancy: Parallel I/O Expert
by LRZ aktuell Jan. 10, 2013

Jan. 10, 2013

LRZ operates one of the most powerful and energy efficient high performance computing systems in Europe as well as a heterogeneous-architecture Linux Cluster; on all of the HPC systems at LRZ, new methods and access patterns of using the I/O subsystems represent an increasingly challenging set of performance and quality-of-service problems. In order to develop methods, tools and policies that can adequately handle these situations, LRZ is looking for an Expert on Parallel File I/O Applications will be accepted until January 31, 2013. The position is available beginning April 1, 2013. For more information, please see http://www.lrz.de/wir/stellen/ 2013-01_parallel-io-expert/ Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/aktuell/ali4497/ Hannelore Apel

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System Administrator Universe Cluster
by LRZ aktuell Jan. 10, 2013

Jan. 10, 2013

The Excellence Cluster Universe is a large-scale collaboration of nuclear and particle physicists, astrophysicists, cosmologists and astronomers that is focusing on the task of understanding the development of the universe throughout different epochs of its evolution. For this purpose it intends to deploy a HPC system "C2PAP" that will be housed at LRZ. We offer you the opportunity to work with world-leading computer systems, applications and tools in many different research areas, particularly in those active within the Excellence Cluster Universe. For the administration of the above-mentioned HPC system that is very similar in architecture to SuperMUC, LRZ is looking for a System Administrator Universe Cluster Applications will be accepted until January 31, 2013. The position is available beginning April 1, 2013. For more information, please see http://www.lrz.de/wir/stellen/ 3013-01_sysadmin-universe-cluster/ Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/aktuell/ali4496/ Hannelore Apel

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System Administrator Universe Cluster
by LRZ aktuell Jan. 10, 2013

Jan. 10, 2013

The Excellence Cluster Universe is a large-scale collaboration of nuclear and particle physicists, astrophysicists, cosmologists and astronomers that is focusing on the task of understanding the development of the universe throughout different epochs of its evolution. For this purpose it intends to deploy a HPC system "C2PAP" that will be housed at LRZ. We offer you the opportunity to work with world-leading computer systems, applications and tools in many different research areas, particularly in those active within the Excellence Cluster Universe. For the administration of the above-mentioned HPC system that is very similar in architecture to SuperMUC, LRZ is looking for a System Administrator Universe Cluster Applications will be accepted until January 31, 2013. The position is available beginning April 1, 2013. For more information, please see http://www.lrz.de/wir/stellen/ 3013-01_sysadmin-universe-cluster/ This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4495/ Hannelore Apel

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Job Vacancy: Parallel I/O Expert
by LRZ aktuell Jan. 10, 2013

Jan. 10, 2013

LRZ operates one of the most powerful and energy efficient high performance computing systems in Europe as well as a heterogeneous-architecture Linux Cluster; on all of the HPC systems at LRZ, new methods and access patterns of using the I/O subsystems represent an increasingly challenging set of performance and quality-of-service problems. In order to develop methods, tools and policies that can adequately handle these situations, LRZ is looking for an Expert on Parallel File I/O Applications will be accepted until January 31, 2013. The position is available beginning April 1, 2013. For more information, please see http://www.lrz.de/wir/stellen/ 2013-01_parallel-io-expert/ This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4494/ Hannelore Apel

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TSM-Wartung S20 am 14.01.2013 von ca. 06:00 18:00 Uhr
by LRZ aktuell Jan. 7, 2013

Jan. 7, 2013

Am TSM Server s20 ist aufgrund eines Softwaredefekts eine Wartung an der internen TSM Datenbank notwendig. Aus diesem Grund wird der Server s20 am 14.01.2013 von ca. 06:00 18: 00 Uhr nicht verfuegbar sein. Bitte beachten Sie, dass die Ausfallzeit eine Schaetzung basierend auf Angaben von IBM darstellt und u.U. deutlich nach unten oder oben variieren kann. Wir bitten um Ihr Verstaendnis. Ihr ABS-Team Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/datenhaltung/adsm/aktuell/ali4493/ Monika Hufnagl

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Upd:Stellenanzeige: Lizenzteam
by LRZ aktuell Dec. 27, 2012

Dec. 27, 2012

Aenderungen an der Mitteilung: Berufsbezeichnung korrigiert Das Lizenzteam des Leibniz-Rechenzentrums sucht fuer die Versorgung der bayerischen Hochschulen mit Software-Lizenzen eine(n) Mitarbeiter/-in mit einem der folgenden Abschluesse: IT-System-Kaufmann/-frau, Informatikkaufmann/-frau oder vergleichbarer Abschluss. Sie betreuen unsere Softwarekunden und unterstuetzen uns in allen Themen rund um die Beschaffung und Lizenzierung von Software fuer die Hochschulen im Raum Muenchen und teilweise bayernweit. Die naeheren Einzelheiten entnehmen Sie bitte unserer Stellenanzeige unter http://www.lrz.de/wir/stellen/2012-12_kaufmann_lizenzteam/ . Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/aktuell/ali4492/ Hannelore Apel

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Stellenanzeige: Lizenzteam
by LRZ aktuell Dec. 27, 2012

Dec. 27, 2012

Das Lizenzteam des Leibniz-Rechenzentrums sucht fuer die Versorgung der bayerischen Hochschulen mit Software-Lizenzen eine(n) Mitarbeiter/-in mit einem der folgenden Abschluesse: IT-System-Kaufmann/-frau, Informatik-Kaufmann/-frau oder vergleichbarer Abschluss. Sie betreuen unsere Softwarekunden und unterstuetzen uns in allen Themen rund um die Beschaffung und Lizenzierung von Software fuer die Hochschulen im Raum Muenchen und teilweise bayernweit. Die naeheren Einzelheiten entnehmen Sie bitte unserer Stellenanzeige unter http://www.lrz.de/wir/stellen/2012-12_kaufmann_lizenzteam/ . Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/aktuell/ali4492/ Hannelore Apel

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Upd:SuperMUC: Back in User Operation
by LRZ aktuell Dec. 21, 2012

Dec. 21, 2012

Changes to this message: Update Update (Dec 21, 15:00) SuperMUC is back in user operation, but not all issues with GPFS have yet been fixed, however. Please be aware that we still expect problems and instabilities with the parallel file system. If you experience any problems please submit a ticket. ----------------------------------------------------------------------- Update (Dec 20, 8:50) The two main issues (and a couple of minor problems) that caused the I/O problems have been isolated and, hopefully, fixed; we intend to repeat the acceptance benchmark as soon as possible. Once we consider the fixes fully verified, we intend to return to regular user operation - please watch this document for further updates. ----------------------------------------------------------------------- Update: Please note that user access to the system will be blocked on Friday, Dec 14 at 18:00. LoadLeveler will be stopped in the morning of Dec. 15. ----------------------------------------------------------------------- Dear users of the SuperMUC petaflop system, Strong performance variations and hangs of I/O, which have also been observed by regular production programs on the systems, have caused the acceptance step for GPFS performed on December 11 to fail. For this reason, LRZ has decided to turn over the complete system to IBM for an open ended analysis phase beginning on Saturday, December 15, at 12:00 LRZ is of the opinion that there is no alternative to this procedure in order to isolate and remove the cause for the observed problems on the system and obtain more stable user operation in the long term. We will inform you via this document once a date for returning to user operation has been fixed. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4488/ Reinhold Bader

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Upd:SuperMUC: Progress in resolving I/O problems
by LRZ aktuell Dec. 20, 2012

Dec. 20, 2012

Changes to this message: Progress Update (Dec 20, 8:50) The two main issues (and a couple of minor problems) that caused the I/O problems have been isolated and, hopefully, fixed; we intend to repeat the acceptance benchmark as soon as possible. Once we consider the fixes fully verified, we intend to return to regular user operation - please watch this document for further updates. ----------------------------------------------------------------------- Update: Please note that user access to the system will be blocked on Friday, Dec 14 at 18:00. LoadLeveler will be stopped in the morning of Dec. 15. ----------------------------------------------------------------------- Dear users of the SuperMUC petaflop system, Strong performance variations and hangs of I/O, which have also been observed by regular production programs on the systems, have caused the acceptance step for GPFS performed on December 11 to fail. For this reason, LRZ has decided to turn over the complete system to IBM for an open ended analysis phase beginning on Saturday, December 15, at 12:00 LRZ is of the opinion that there is no alternative to this procedure in order to isolate and remove the cause for the observed problems on the system and obtain more stable user operation in the long term. We will inform you via this document once a date for returning to user operation has been fixed. This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4488/ Reinhold Bader

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Upd:Umzug vom TSM Server S12
by LRZ aktuell Dec. 18, 2012

Dec. 18, 2012

Aenderungen an der Mitteilung: Update Dieser ALI betrifft nur TSM-Benutzer, die Nodes am Server S12 haben! Aufgrund eines Lastungleichgewichts, ist es noetig den TSM Server S12 auf einen anderen HW-Server zu verlagern. Deshalb wird der Server S12 am Mittwoch, den 16.01.2013 von ca. 07:00 Uhr bis 17:00 Uhr nicht verfuegbar sein. Bitte beachten Sie auch, dass sich die IP Addresse des Servers von 10.156.8.173 auf 10.156.29.66 aendern wird. Die IPv6-Adresse lautet nicht mehr 2001:4ca0:0:109::a9c:8ad, sondern 2001:4ca0:0:117::a9c:1d42. Sollten Sie diese IP in den Konfigurationsdateien oder einer Firewall eingetragen haben, so muss diese entsprechend geaendert werden. Der DNS Aliasname s12.lrz-muenchen.de wird natuerlich entsprechend angepasst. Allerdings wird ein Neustart des TSM Schedulers noetig sein, damit die automatischen Sicherungen weiterhin laufen. Wir bitten um Ihr Verstaendnis. Ihr ABS-Team Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/datenhaltung/adsm/aktuell/ali4487/ Susanne Hoferer

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