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Netzwartung am 3.7.
by LRZ aktuell July 2, 2012

July 2, 2012

1. TUM Garching Maschinenwesen Gebaeudeteil 3 (Bib, FML) Zwischen 8:00 Uhr und 8:30 Uhr wird der Switch swi2-2w3 (Raum 1350) getauscht. 2. LMU Schellingstr. 10 Zwischen 7:30 Uhr und 9:00 Uhr wird der Switch swg1-kgx getauscht. 3. TUM Weihenstephan Geb. 4218, Emil-Ramann Str. 4 Zwischen 8:00 Uhr und 8:30 Uhr wird der Switch swg1-kp4 getauscht. 4. TUM Gabelsbergerstr. 43 und 45 Wie den betroffenen Netzverantwortlichen bereits angekuendigt wird hier zwischen 7:00 Uhr und ca. 8:30 Uhr wegen Arbeiten an der Stromversorgung der Strom abgeschaltet. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4350/ Wolfgang Beyer

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Upd:TSM-Hardwarewartung am 27.06.2012 ab ca. 12:00 Uhr
by LRZ aktuell June 27, 2012

June 27, 2012

Aenderungen an der Mitteilung: Update Wegen einer dringenden Hardware Wartung ist unser Archiv- und Backupsystem (HABS) am Mittwoch, den 27.06.12 ab ca. 12:00 Uhr nicht verfuegbar. TSM-Serverinstanzen: S35 - S68 Wir bitten um Ihr Verstaendnis. In order to be able to keep delivering the familiar service quality for you we perform a maintenance on our Archive and Backup System on Wednesday, 2011-06-27 from 12:00 am to 16:00. TSM-Instances: S35 - S68 Note: HPC user as well as Linux-Cluster user are affected too. We apologize for any inconvenience on your side. Ihr ABS-Team Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/datenhaltung/adsm/aktuell/ali4347/ Monika Hufnagl

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Large Scale debugging on SuperMUC
by LRZ aktuell June 27, 2012

June 27, 2012

Large Scale debugging with DDT Date: July 10, 2012, 9:00-18:00 Location: LRZ Building, University campus Garching, near Munich, Kursraum 1 (H.U.002) Parallel debugging with many tasks will be supported on the new PetaFlop system SuperMUC at LRZ using the DDT debugger from Allinea and other tools. This one-day workshop is focused on the functionality available within DDT to deal with large scale debugging in an efficient manner. Please register here This information is also available on our web server http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4349/ Ferdinand Jamitzky

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Introduction to SuperMUC - the new Petaflop Supercomputer at LRZ
by LRZ aktuell June 26, 2012

June 26, 2012

Introduction for SuperMUC Users You can attend the lectures without registration, also only in parts. Date: July 2-5, 2012 10:00 - 17:00 Location: LRZ Building, University campus Garching, near Munich (Lecture room H.E.009) This four-day workshop gives an introduction to the usage of the new Petaflop class Supercomputer at LRZ, SuperMUC. The first three days of this are dedicated to presentations by Intel on their software development stack (compilers, tools and libraries); the remaining day will be comprised of talks and exercises delivered by IBM and LRZ on usage of the IBM-specific aspects of the new system (IBM MPI, LoadLeveler, HPC Toolkit) and recommendations on tuning and optimizing for the new system. The following schedule is preliminary and may undergo changes. Monday schedule: Introduction to the x86 Westmere and Sandy Bridge Processor Architecture Usage of Intel Compilers: switches, optimization, profiling, OpenMP, advanced features Usage of the Intel debugger Explicit and compiler-directed vectorization with SSE and AVX Tuesday schedule: Programming for NUMA Intel Cilk Plus Fortran standard support and extensions in Intel Fortran Intel Inspector XE (correctness checking for memory and threading) Threading Building Blocks, OpenCL and other parallel programming models Static Security Analysis Performance Libraries (MKL, IPP) VTune Amplifier XE (performance analysis) Wednesday schedule: Intel Performance Monitoring Unit (PMU) and other performance analysis tools Intel Cluster Tools Overview and Usage Intel Many Integrated Core (MIC) Architecture A case study illustrating the use of the Intel toolchain Thursday schedule: Using LoadLeveler for batch queuing IBM's parallel environment Performance Tools (High Performance Toolkit, Eclipse User Interface) including a demonstration. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/supermuc/aktuell/ali4348/ Ferdinand Jamitzky

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TSM-Hardwarewartung am 27.06.2012 von ca. 12:00 bis ca. 16:00 Uhr
by LRZ aktuell June 25, 2012

June 25, 2012

Wegen einer dringenden Hardware Wartung ist unser Archiv- und Backupsystem (HABS) am Mittwoch, den 27.06.12 von ca. 12:00 bis ca. 16: 00 Uhr nicht verfuegbar. TSM-Serverinstanzen: S35 - S68 Wir bitten um Ihr Verstaendnis. In order to be able to keep delivering the familiar service quality for you we perform a maintenance on our Archive and Backup System on Wednesday, 2011-06-27 from 12:00 am to 16:00. TSM-Instances: S35 - S68 Note: HPC user as well as Linux-Cluster user are affected too. We apologize for any inconvenience on your side. Ihr ABS-Team Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/datenhaltung/adsm/aktuell/ali4347/ Monika Hufnagl

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Netzwartung am 26.6.
by LRZ aktuell June 25, 2012

June 25, 2012

1. Interne Netzdienste, LRZ-Firewall Zwischen 8:15 Uhr und 8:30 Uhr muss ein Modul des Zentralrouters vss1-2wr gebootet werden. Probleme bei der daran angeschlossenen Firewall sind nicht auszuschliessen. 2. TUM Garching Physik Zwischen 8:00 Uhr und 8:30 Uhr wird die Anbindung des Switches swz1-2at auf 10 GE umgestellt. 3. LMU Theresienstr. 37-39 Durch den noetigen Reset der Module G im Switch swz1-2da und I im Switch swz1-4db wird es zwischen 7:30 Uhr und 9:00 Uhr bei den angeschlossenen Systemen zu einer kurzen Unterbrechung kommen. 4. LMU Ludwigstr. 27 Durch den noetigen Reset des Moduls F im swz1-4gp wird es bei den angeschlossenen Systemen zwischen 7:30 Uhr und 9:00 Uhr zu einer kurzen Unterbrechungen kommen. 5. LMU Ludwigstr. 33 Zwischen 7:30 Uhr und 9:00 Uhr wird der Switch swg1-kgv ersetzt. 6. TUM Weihenstephan Geb. 4213 (Lebensmitteltechnikum) Zwischen 7:30 Uhr und 9:00 Uhr wird der Switch swg1-0pg ersetzt. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/netz/aktuell/ali4346/ Wolfgang Beyer

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Upd:Parts of the linux cluster unavailable; back in production again
by LRZ aktuell June 22, 2012

June 22, 2012

Aenderungen an der Mitteilung: Update Dear users of the linux cluster, due to problems with the cooling infrastructure part of the linux cluster are currently down. We are working on the problem but can not yet give an estimate, when production will be resumed. Affected are following housted systems in watercooled racks: - LMU Exzellenz Cluster - LMU Th. Physik - LCG We will keep you updated through this ALI and apologize for the inconvenience caused by this interrupt. Update: Most of the systems are back in production again. Diese Information finden Sie im WWW unter http://www.lrz-muenchen.de/services/compute/aktuell/ali4344/ Michael Bopp

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Upd:Update: SuperMIG back in production
by LRZ aktuell June 22, 2012

June 22, 2012

Changes to this message: Update Dear users of SuperMIG, the problems with the cooling of SuperMIG have been resolved and the full system 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/arbeitsplatzsysteme/aktuell/ali4342/ Hans-Georg Kleinhenz

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Upd:Update: SuperMIG partially available
by LRZ aktuell June 22, 2012

June 22, 2012

Changes to this message: Update Dear users of SuperMIG, the SuperMIG login nodes and part of the compute nodes are back in production. As soon as the cooling infrastructure allows the full system will be available again. We apologize for the inconvenience caused by this interrupt. This information is also available on our web server http://www.lrz-muenchen.de/services/arbeitsplatzsysteme/aktuell/ali4342/ Hans-Georg Kleinhenz

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Call for Papers: PPHPS 2012 Conference
by LRZ aktuell June 22, 2012

June 22, 2012

Analysis of Performance and Power for Highly Parallel Systems Special issue of Concurrency and Computation: Practice and Experience (CCPE) ----------------------------------------------------------------------- This special issue will be focused on how performance and power properties of modern highly parallel systems can be analyzed using state-of-the-art modeling and analysis techniques, and real-world applications and tools. Complex, hierarchical architectures are now the standard for almost all highly parallel computer systems. Without a good grip on relevant performance limitations any optimization attempt is just a shot in the dark. Hence, it is vital to fully understand the performance properties and bottlenecks that come about with clustered multi- & many-core, multi-socket nodes. Another crucial aspect of modern systems is the complex interplay between power constraints and the need for compute performance. The challenges ahead are many-fold as systems scale in size. While parallelism is increasing, memory systems, interconnection networks, storage, and uncertainties in programming models all add to the complexities. More rapid realization of energy savings will require significant increases in measurement resolution and optimization techniques. The interplay between performance, power, and reliability also leads to complex trade-offs. Of particular interest are papers that identify and analyze novel ideas rather than providing incremental advances in the following areas: * Performance modeling techniques at core, socket, node, and system levels * State-of-the-art tools for analyzing performance and power * Novel techniques that enable power and/or energy optimizations * Experiences from current large-scale systems and applications * Analysis of future technologies that will provide improved energy efficiency ----------------------------------------------------------------------- Submission Guidelines Work that is submitted to this special issue must not have been previously published or currently being considered by other journal or conference venues. However, the papers that have been previously published with reputed conferences can be considered for publication in the special issue if they are substantially revised with at least 30% new content. Every submitted paper will receive at least three reviews. There is a 20 page max length limit (12 point single space, inclusive of figures and tables). Wiley has LaTeX templates that can be used by authors. Either LaTeX or Word submissions will be accepted. Submissions should be made through Manuscript Central (http://mc.manuscriptcentral.com/ cpe) and must refer to "PPHPS 2012 special issue" in step 4 of the submission process. The CCPE submission guidelines can be found at http://www.cc-pe.net/journalinfo/authors.html Please also note the additional instructions for submission to CCPE special issues at http://www.cc-pe.net/journalinfo/issues/authorinstructions.html ----------------------------------------------------------------------- Important Dates Submission deadline: July 30th 2012 Notification of acceptance: September 16th 2012 Final Papers due: November 11th 2012 Final Decisions: December 14th 2012 ----------------------------------------------------------------------- Special Issue Guest Editors Georg Hager University of Erlangen, Germany Darren J. Kerbyson Pacific Northwest National Laboratory, USA Abhinav Vishnu Pacific Northwest National Laboratory, USA Gerhard Wellein University of Erlangen, Germany This information is also available on our web server http://www.lrz-muenchen.de/services/compute/aktuell/ali4345/ Reinhold Bader

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