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Spring HEPiX 2007

→ Europe/Berlin
Main Auditorium (DESY Hamburg)

Main Auditorium

DESY Hamburg

Notkestrasse 85 22607 Hamburg Germany
Support
  • Monday 23 April
    • 08:30 → 09:30
      Registration Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany

      The registration desk at the DESY Main Auditorium will be
      open in the morning.

    • 09:30 → 10:00
      Keynotes Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      video
      • 09:30
        Keynote 15m
        Welcome to DESY
        Speaker: Prof. Rolf-Dieter Heuer (DESY)
        Slides
        Stream
        Video
      • 09:45
        Finding Your Ways - A Word From The Organizers 15m
        Welcome from the organizers and introductory remarks about schedules, locations, and services during the Spring 2007 HEPiX Workshop
        Speaker: Dr Knut Woller (DESY)
        Slides
        Stream
        Video
    • 10:00 → 10:45
      Site Reports I Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 10:00
        LAL Site Report 15m
        Site report for LAL and GRIF
        Speaker: Mr Michel Jouvin (LAL / IN2P3)
        live broadcast
        Slides
        Video
      • 10:15
        LAPP site report - A French Tier3 15m
        LAPP (Laboratoire d’Annecy le Vieux de Physique des Particules) is a French IN2P3 laboratory involved in LHC experiments (Atlas, LHCb) as a Tier3. We will describe our computing resources (shared by local and grid users), storage resources, services running at site, monitoring and “home made” accounting tools.
        Speakers: Mr Eric Fede (LAPP/IN2P3/CNRS), Mrs muriel gougerot (LAPP/IN2P3/CNRS)
        live broadcast
        Slides
        Video
      • 10:30
        PSI Site Report 15m
        PSI Site Report
        Speaker: Dr Urs Beyerle (PSI)
        live broadcast
        Slides
        Video
    • 10:45 → 11:15
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 11:15 → 13:00
      Site Reports II Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 11:15
        CASPUR Site Report 15m
        10 minute update on our site
        Speaker: Mr Andrei Maslennikov (CASPUR)
        live broadcast
        Slides
        Video
      • 11:35
        BNL Site Report 15m
        BNL Site Report
        Speaker: Robert Petkus (Brookhaven National Laboratory)
        live broadcast
        Slides
        Video
      • 11:55
        GSI site report 15m
        GSI site report
        Speaker: Dr Walter Schoen (GSI)
        live broadcast
        Slides
        Video
      • 12:15
        RAL Site report 15m
        Status report from the RAL Tier1 in the run up to LHC switch on.
        Speaker: Mr Martin Bly (STFC-RAL)
        live broadcast
        Slides
        Video
      • 12:35
        GridKa Site Report 15m
        Short overview of the status of GridKa. Note: This contribution will not be recorded or streamed. Remote participants should use VRVS to attend.
        Speaker: Manfred Alef (Forschungszentrum Karlsruhe)
        Slides
    • 13:00 → 14:00
      Lunch Break 1h Canteen

      Canteen

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 14:00 → 15:30
      Site Reports III Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 14:00
        PDSF Site Report 15m
        Taking a look at what is happening at PDSF and NERSC.
        Speaker: Cary Whitney (LBL/NERSC)
        live broadcast
        Slides
        Video
      • 14:15
        Scotgrid - Site Report 15m
        We present a site report for the 3 UKI Scotgrid Tier 2 sites (Glasgow, Edinburgh, Durham) covering the Status of the sites, Availability, Operations. We will also cover distributed support and stress testing of both DPM and dCache
        Speaker: Mr Andrew Elwell (University of Glasgow)
        live broadcast
        Slides
        Video
      • 14:35
        TRIUMF Site Report 15m
        Speaker: Dr Cornelis Kost (TRIUMF)
        live broadcast
        Slides
        Video
      • 14:50
        INFN-T1 site report 15m
        The present situation and the future plans about the INFN Tier-1 infrastructural, farming, storage and network subsystems will be shown.
        Speaker: Mr Felice Rosso (INFN-CNAF)
        live broadcast
        Slides
        Video
      • 15:10
        CC-IN2P3 Site Report 15m
        Site report for the IN2P3 Computing Centre.
        Speaker: Mr Loic Tortay (IN2P3 Computing Centre)
        live broadcast
        Slides
        Video
    • 15:30 → 16:00
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 16:00 → 17:00
      Site Reports IV Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 16:00
        CERN Site Report 20m
        CERN Site Report
        Speaker: Dr Helge Meinhard (CERN)
        live broadcast
        Slides
        Video
      • 16:20
        DESY Site Report 20m
        DESY Site Report
        Speaker: Dr Knut Woller (DESY)
        live broadcast
        Slides
        Video
      • 16:40
        SLAC Site Report 20m
        SLAC Site Report
        Speaker: Mr Chuck Boeheim (SLAC)
        live broadcast
        Slides
        Video
  • Tuesday 24 April
    • 08:30 → 09:00
      Registration Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 09:00 → 10:45
      Solutions and Architectures I Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 09:00
        Another Word from the Organizers 15m
        Who do you want to meet today? We´re setting up the BOF sessions for the afternoon and we´ll inform you about the evolution of the Agenda.
        Speaker: Dr Knut Woller (DESY)
        live broadcast
        Slides
        Video
      • 09:15
        Highly Available Central Services III (A Virtualization Approach) 30m
        Besides clustering and content based routing the technique of host virtualization is another possibility of enhancing the availability of central services. The talk will give a short introduction to pseudo virtualization before focusing on the open source XEN virtualization and the Sun Solaris container concept. Different aspects like base features, automatic provisioning, file system support and version dependencies will be shown. The benefits in the context of providing central services are easy service separation, enhanced availability, flexible resource usage and control and simple provisioning.
        Speaker: Mr Thomas Finnern (DESY)
        live broadcast
        PDF
        Slides
        Video
      • 09:45
        A High Availability Central Content Management Sever System 30m
        The computersystem for the central content management system at DESY consists of loadbalancers, webservers, application servers and database servers. The setup makes use of common software such as Apache, Zope etc. This talk will give an overview over the setup and goes into some details of the Apache and loadbalancing setup.
        Speaker: Mr Carsten Germer (DESY)
        live broadcast
        Slides
        Video
      • 10:15
        Status and Plans of Procurements at CERN 30m
        Speaker: Dr Helge Meinhard (CERN)
        live broadcast
        Slides
        Video
    • 10:45 → 11:15
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 11:15 → 13:00
      Solutions and Architectures II Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 11:15
        Support for web projects at DESY 30m
        DESY offers to the research and administration groups full technical support for their web projects. The talk will show, how the service is organized and give information on the Web-Office project, which started 5 years ago.
        Speaker: Renate Roude (DESY)
        live broadcast
        Slides
        Video
      • 11:45
        Computing and Network structure for Diamond 30m
        Diamond Light Source is a light source synchrotron facility of recent construction. Computing and networking must support both production and research. Mostly production in the running of the synchrotron, mostly research in the experimental beamlines attached to it. This has required a dual structure, and especially for the beamline system a careful attention to growth requirement. Existing plans call for experimental data rates in aggregate approaching those of the LHC at CERN. Synchrotron computing is based on PowerPC and ARM based control and monitoring systems and powerful workstations running monitoring software; synchrotron networking on a multimode fibre, 1gb/s infrastructure and CAT6 1gb/s connections to leaf nodes. Experimental computing is based on industry standard storage servers, clusters and GNU/Linux; networking is based on a 10gb/s singlemode fibre infrastructure and 1gb/s CAT6 links to end nodes, but soon we will have 10gb/s links to servers both on singlemode fibre and CAT6 when 10GBASE-T products become available. Interesting challenges and research in the near future as detectors improve resolution and diffractometers improve sample positioning. A tomography experiment which results in data rates of 400MB/s for a day is already being investigated.
        Speaker: Mr Peter Grandi (Diamond Light Source Ltd.)
        live broadcast
        Slides
        Video
      • 12:15
        Oracle Database services at the INFN-CNAF Tier-1 30m
        Most of the services of the GRID infrastructure require robust and efficient database backends, providing high performances as well as fault tolerance mechanisms and fast disaster recovery procedures. To this end, the Italian Tier-1, in collaboration with CERN and the other Tier-1s of the WLCG, has started a deployment and production phase of Oracle database services, that will be used e.g. to provide backends for file catalogues such as LFC, condition databases, storage resource managers, mass storage systems like Castor-2, etc.. In this talk we give an overview of the service infrastructure at CNAF, describing how the various Oracle technologies - RAC, ASM, RMAN, Streams, GridControl, etc. - are used. We also present the results of some specific tests realized to validate and measure the performance of the system.
        Speaker: Mr Gianluca Peco (INFN Bologna)
        live broadcast
        Slides
        Video
    • 13:00 → 14:00
      Lunch Break 1h Canteen

      Canteen

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 14:00 → 15:30
      BOF Meetings I Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany

      Birds of a feather flock together -

      If you wish to discuss special topics with colleagues,
      partners, or experts, look at the pinboard in front of the
      registration desk. If your topic already has a BOF
      scheduled, join them. If not, set one up on your own by
      posting a note with your name and topic of choice to the
      pinboard. Ask on of the organizers for possible additional
      locations.

    • 15:30 → 16:00
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 16:00 → 17:00
      BOF Meetings II Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany

      Birds of a feather flock together -

      If you wish to discuss special topics with colleagues,
      partners, or experts, look at the pinboard in front of the
      registration desk. If your topic already has a BOF
      scheduled, join them. If not, set one up on your own by
      posting a note with your name and topic of choice to the
      pinboard. Ask on of the organizers for possible additional
      locations.

  • Wednesday 25 April
    • 08:30 → 09:00
      Registration Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 09:00 → 10:50
      Storage And File Systems I Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 09:00
        FSWG Progress Report 30m
        FSWG Progress Report
        Speaker: Andrei Maslennikov (CASPUR)
        live broadcast
        Slides
        Video
      • 09:30
        AFS + Object Storage 30m
        In a common project between CERN, CASPUR, and RZG an AFS extension to support object storage has been developed. The Object Storage Devices (OSD) are loosely based on SCSI T10-standard and uses the mature AFS components rx-interface to the network and namei-interface to the disks. The AFS fileserver got a new role as OSD-metatdataserver. A ubik-database to store information about OSDs has been developed. The AFS-client has been restructured to allow for direct parallel access to OSDs. This technique allows to distribute files belonging to an AFS-volume over multiple OSDs and offers new techniques such as write-replication of files and file-striping. Also a legacy interface has been implemented to allow any old AFS client access to data stored in OSDs. In March a stress test of the beta-version took place at CERN with 120 clients and 8 servers showing stability and the expected scalability and performance.
        Speaker: Dr Hartmut Reuter (RZG)
        live broadcast
        Slides
        Video
      • 10:00
        Lustre experience at CEA/DIF 30m
        Lustre experience at CEA/DIF
        Speaker: Mr Jacques-Charles Lafoucriere (CEA)
        live broadcast
        Slides
        Video
    • 10:50 → 11:15
      Coffee Break 25m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 11:15 → 13:00
      Storage And File Systems II Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 11:15
        Storage Evaluations at BNL 20m
        Several disk storage systems have been evaluated at the RHIC/USATLAS Computing Facility as part of an ongoing project to identify solutions capable of accommodating a large projected growth in storage demand over the next five years. A preference is given toward lower-cost, high-density, commodity solutions using SATA and SAS drives. This talk will survey the testing methodology, configuration, and performance of a number of products thus far evaluated including the SunFire x4500 (Thumper).
        Speaker: Robert Petkus (Brookhaven National Laboratory)
        live broadcast
        Slides
        Video
      • 11:35
        PANASAS update 10m
        PANASAS update
        Speaker: Robert Petkus (Brookhaven National Laboratory)
        live broadcast
        Slides
        Video
      • 11:50
        Tuning a GPFS file system 20m
        I'll discuss how to tune a GPFS filesystem and problems that GPFS discovered in out network and systems.
        Speaker: Cary Whitney (LBL/NERSC)
        live broadcast
        Slides
        Video
      • 12:15
        GPFS at CNAF 20m
        Experiences of deployment, tuning and administration of large GPFS cluster (700 nodes, 130TB of disk space) will be presented.
        Speaker: Dr Vladimir Sapunenko (INFN-CNAF)
        live broadcast
        Slides
        Video
      • 12:40
        HPSS and GPFS 20m
        Using HPSS as a GPFS storage pool, thus allowing automatic migration of data to and from HPSS from a GPFS filesystem. This is work being developed at NERSC and SDSC.
        Speaker: Cary Whitney (LBL/NERSC)
        live broadcast
        Slides
        Video
    • 13:00 → 14:00
      Lunch Break 1h Canteen

      Canteen

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 14:00 → 15:30
      Storage And File Systems III Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 14:00
        ZFS at DESY and IN2P3 25m
        ZFS at DESY and IN2P3
        Speaker: Mr Martin Gasthuber (DESY)
        live broadcast
        Slides
        Video
      • 14:25
        DPM Update 20m
        DPM Update
        Speaker: Mr Steve Traylen (CERN)
        live broadcast
        Slides
        Video
      • 14:50
        dCache update 20m
        dCache update
        Speaker: Mr Patrick Fuhrmann (DESY)
        live broadcast
        Slides
        Video
      • 15:10
        SRM update 20m
        SRM update
        Speaker: Mr Steve Traylen (CERN)
        live broadcast
        Slides
        Video
    • 15:30 → 16:00
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 16:00 → 17:00
      Storage and File Systems BOF Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany

      Informal discussion on topics presented today.

      • 16:00
        Silent Corruptions 20m
        We report on the progress of ongoing silent data corruptions investigation at CERN. In the last couple of months, CERN has been systematically collecting and analysing observations of data corruptions in the CERN computer centre. Current results and the toolset used in the investigations will be presented.
        Speaker: Mr Peter Kelemen (CERN)
        live broadcast
        Slides
        Video
      • 16:20
        Storage and File Systems BOF 40m
        live broadcast
        Video
    • 17:00 → 18:00
      HEPiX Board Meeting Building 3, Room 304

      Building 3, Room 304

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany

      Remote participation is possible via ESNET AdHoc Service.
      Dial into the Codian MCU using the phone number distributed
      to the HEPiX Board mailing list.

      slides
    • 19:00 → 23:00
      Workshop Dinner Museumshafen Oevelgoenne (D.E.S. Bergedorf)

      Museumshafen Oevelgoenne

      D.E.S. Bergedorf
  • Thursday 26 April
    • 08:30 → 09:00
      Registration Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 09:00 → 10:45
      Systems Management I Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 09:00
        GRIF : management of a distributed site with Quattor 25m
        This talk will present GRIF experience of managing a distributed site with Quattor and show how Quattor has been a critical tool for building a unique, geographically distributed, technical team.
        Speaker: Mr Michel Jouvin (LAL / IN2P3)
        live broadcast
        Slides
        Video
      • 09:25
        Monitoring at GridKa using Nagios 25m
        At GridKa the system monitoring tool Nagios is used to check the status of servers, worker nodes, storage systems, network components, services, and infrastructure (e.g. UPS and cooling). We'll present a brief summary about the setup and the hierarchical structure of the Nagios system at GridKa.
        Speaker: Mr Axel Jäger (Forschungszentrum Karlsruhe)
        live broadcast
        Slides
        Video
      • 09:50
        Cfengine - Stress reduction for System Administrators 25m
        We will cover the use of Cfengine (http://www.cfengine.org) to fully manage a grid cluster, and maintain software and configuration of worker nodes, grid and disk servers. We will demonstrate the ease of extending the cluster to new hosts, and classes of hosts, together with the simplicity of maintaining the grid software ie, R-GMA bugfix
        Speaker: Mr Andrew Elwell (University of Glasgow)
        live broadcast
        Slides
        Video
      • 10:15
        Virtualization Users Workshop Report 30m
        This talk reports upon the Virtualization users workshop held earlier this year at DESY. HEP Use cases and applications of Virtualization on the worker node became the focus of the discussions. To provide some illustration D-Caches usage of Virtualization will be summarized.
        Speaker: Mr Owen Synge (Desy)
        live broadcast
        Slides
        Video
    • 10:45 → 11:15
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 11:15 → 13:00
      Systems Management II Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 11:15
        HEPiX/WLCG System Management Working Group: an update. 30m
        System Management Working Group (SMWG) of sys admins from Hepix and grid sites has been setup to address the fabric management problems that HEP sites might have. The group is open and its goal is not to implement new tools but to share what is already in use at sites according to existing best practices. Some sites are already publicly sharing their tools and sensors and some other sites do write very good documentation and share it. The aim is to extend this to a general practice and in a more organised way and avoid the duplication of effort that occurs when system administrators are solving mostly the same problems over and over. The result has been the creation of a WEB site (www.sysadmin.hep.ac.uk) that hosts a subversion repository for management and monitoring tools and a wiki. It works as a file sharing system and single entry point for documentation distributed in other sites. The site, based on gridsite. We will describe how the group is working and what has been achieved so far.
        Speaker: Ms Alessandra Forti (University of Manchester)
        live broadcast
        Slides
        Video
      • 11:45
        Overview of WLCG Grid Services Monitoring Working Group 30m
        This talk will summarise the work and experience to date of the WLCG Grid Services Monitoring Working Group whose goal is, through better service monitoring, to improve the reliability and availability of the Grid. The talk will cover proposed standardizations for service metric gathering and grid monitoring data exchange and the use of a Nagios-based prototype deployment for validation.
        Speaker: Mr Ian Neilson (CERN)
        live broadcast
        Slides
        Video
      • 12:15
        Future Grid Deployment Strategy 30m
        The paper reflects on the experience gained from the deployment of the gLite middleware on the EGEE infrastructure and describes the changes required to meet the demanding requirements over the next few years. In particular, focus is given to the the changes required in YAIM, the grid middleware configuration, to addresses the required granularity of releases, the changes that are necessary for a modular approach and how a smooth transition between can be achieved. In addition, most computing centers are upgrading hardware from 32 bit CPUs to 64 bit. The additional problems this creates is discussed along with the possible solutions so that full support can be given and the resulting affect on YAIM and grid middleware in general is described. An additional requirement is the need to support multiple platforms and migrating to newer versions of the OS. The middleware evolution also contains similar transitions such as upgrading VDT, which is at the core of the middleware. This paper contains information that will be of use to system administers of computing centers who run grid services.
        Speaker: Mr Louis Poncet (CERN)
        live broadcast
        Slides
        Video
      • 12:45
        News from the HEPiX Board 10m
        News from Wednesday´s HEPiX Board Meetind and a lookout to the Fall 2007 HEPiX in St. Louis
        Speakers: Mr Chuck Boeheim (SLAC), Mr Wojciech Wojcik (IN2P3)
        live broadcast
        Video
    • 13:00 → 14:00
      Lunch Break 1h Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 14:00 → 15:30
      Scientific Linux Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 14:00
        Scientific Linux 5 30m
        Scientific Linux 5
        Speaker: Connie Sieh (FNAL)
        live broadcast
        Slides
        Video
      • 14:30
        SL at CERN 20m
        Speaker: Jan Iven (CERN)
        live broadcast
        Slides
        Video
      • 14:50
        SL Plenary Discussion 40m
        Feedback to and input for the SL developers from the HEPiX community. This may influence upcoming decisions e.g. on distribution lifecycles.
        live broadcast
        Video
    • 15:30 → 16:00
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 16:00 → 17:00
      Miscellaneous Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 16:00
        Increasing Reliability Through System Testing And Failure Prediction 30m
        Building data centers from a very large number of components of finite reliability increases the probability of hardware failures, potentially leading to data corruption and unscheduled downtime. In addition, the typical extensive variations in hardware types increase the probability of similar errors due to software incompatibility. We report on the testing and verification methods and software used to check system integrity and decrease service downtime by early problem detection and prediction.
        Speaker: Mr Andras Horvath (CERN)
        live broadcast
        Slides
        Video
      • 16:30
        Cyber Security update 30m
        This talk with cover some recent developments and activities in Cyber Security and Grid security.
        Speaker: Gary Buhrmaster (SLAC)
        live broadcast
        Slides
        Video
  • Friday 27 April
    • 09:00 → 10:45
      Benchmarks I Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 09:00
        Performance of modern processor with HEP code 25m
        I compared the performance of several HEP processor from Intel and AMD when running 32bit and 64 bit code on SL4 using typical HEP code I started also a look to Spec CPU 2006 int and fp on a 4core intel processor
        Speaker: Dr michele michelotto (INFN Padova)
        live broadcast
        Slides
        Video
      • 09:25
        CPU Benchmarking at GridKa - Update April 2007 25m
        I'll continue the discussion about CPU benchmarking. New topics are: - experiences with new worker nodes at GridKa, - quad core measurements, - differing levels of optimization, - first SPEC CPU2006 results.
        Speaker: Manfred Alef (Forschungszentrum Karlsruhe)
        live broadcast
        Slides
        Video
      • 09:55
        Many-Core CPUs - Parallel Computing in HEP 25m
        Parallel computing in HEP is regarded as exotic and unnecessary (at best). I will talk about the recent BaBar D0 mixing results and how parallel computation helped. I will also illustrate that parallel computing will be the only way to take advantage of the upcoming "many-core" CPUs.
        Speaker: Alf Wachsmann (SLAC)
        live broadcast
        Slides
        Video
      • 10:20
        Multi-core CPU performance in High Energy Physics applications 25m
        Multi-core CPUs are the standard way for a performance efficient utilization of additional on-chip CPU space provided by advanced silicon technologies. Though this leads to a more fine grained parallel approach on the programming level for instance by introducing multithreading it is also expected that trivial parallel applications like the event processing in High Energy Physics can take advantage of these new technologies. In the talk the performance of dual- and quad-core systems is compared based on real HEP applications like the ROOT stress benchmark and the ATLAS Athena framework. The goal of the tests was to investigate the ability of those systems to beintegrated into large farm systems controlled by a queuing system. Besides the benchmark results coming from different compute servers other relevant numbers like the price performance ratio and ratio of electrical power consumption versus performance are discussed. Additionally a short view on the design of a certain multi-core architectures is given and possible bottlenecks in using such systems are addressed.
        Speaker: Dr Peter Wegner (DESY)
        live broadcast
        Slides
        Video
    • 10:45 → 11:15
      Coffee Break 30m Foyer

      Foyer

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
    • 11:15 → 12:30
      Benchmarks II Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      • 11:15
        Central NAS Service Update 20m
        Speaker: Connie Sieh (FNAL)
        live broadcast
        Slides
        Video
      • 11:35
        CPU Benchmarks, Accounting, and Procurements at GridKa 25m
        This talk describes the way CPU benchmark measurements are used in planning of CPU procurements and accounting settings at GridKa.
        Speaker: Manfred Alef (Forschungszentrum Karlsruhe)
        live broadcast
        Slides
        Video
      • 12:00
        Plenary Discussion 30m
        live broadcast
        Video
    • 12:30 → 13:00
      Closing Remarks Main Auditorium

      Main Auditorium

      DESY Hamburg

      Notkestrasse 85 22607 Hamburg Germany
      slides
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