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ATLAS Pre-packaged

ATLAS Pre-packaged. Kaushik De University of Texas at Arlington. Need for a Testbed Application. Need ATLAS application for a real test of Grid computing model Should be easy to deploy on thousands of machines Should be useful for physicists Should test virtual data model

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ATLAS Pre-packaged

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  1. ATLAS Pre-packaged Kaushik De University of Texas at Arlington

  2. Need for a Testbed Application • Need ATLAS application for a real test of Grid computing model • Should be easy to deploy on thousands of machines • Should be useful for physicists • Should test virtual data model • Explored various packages currently available • Explored making our own package

  3. CERNLib Package • Necessary for analysis or builds • ATLAS Kit for GRID Testbed http://pcatl0a.mi.infn.it/~resconi/kit/atlas_kit.html • Recommends RPM package for Cernlib http://datagrid.in2p3.fr/distribution/applications/common/RPMS/cern-0.0-2.i386.rpm • 289 MB file - easy to install • but does not work! • have to set environment variables by hand or use cernlib-2000-1.i386.rpm found at http://linuxbox.mi.infn.it/cgi-bin/rpmq?p=/linux/dist/redhat/6.2/i386/RedHat/RPMS/cernlib • Or install 6 separate packages from http://linuxbox.mi.infn.it/cgi-bin/browsecomps?comps=/redhat/6.2/i386/RedHat/base/comps&group=cernlib • Or get from CERN or BNL cell afs/cern.ch/asis/RPMS/i386_redhat61/CERN.LIB_*

  4. ATLAS_1.3.0_kit.tar.gz • Advertised as ATLAS application for generic GRID use • Not a binary release! • Contains SRT, CLHEP and libraries • “main Atlas Applications : DiceMain, DicePytMain, AtreconMain” • Tried under RH 7.1 • Failed miserably • SRT cannot even determine machine type • Gave up after debugging at least a dozen problems and still fail to build • Tried under RH 6.1 • Only produced DiceMain executable • Other two builds crashed horribly • Gave up after many hours of debugging

  5. Other Possibilites • EDG Release • Withdrawn in anticipation of version 1.1.0 release! • Many activities in various WP groups - we need to identify person from our group to monitor them so that we do not duplicate effort • Julian Phillips release • Attempted to put in isolated cage • Reduced lib list from ~290 to <100 • Works under RH 7.1 - had to get one more library • My package • Closed cage, cleaned up • Wrote Globus scripts • Here’s a demo!

  6. What Next! • Job parameter handling • Condor issues • Choose best node to submit job • File cataloguing • Discussion tomorrow

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