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GAE CMS Analysis (Example)

GAE CMS Analysis (Example). Michael Thomas ( thomas@hep.caltech.edu ) (on behalf of the GAE group). Outline. Prepare Code. Collect Results. GAE Analysis. Submit. Monitor. Prepare ORCA Job. Install xcmsi to prepare for local CMS software installation

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GAE CMS Analysis (Example)

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  1. GAE CMS Analysis(Example) Michael Thomas (thomas@hep.caltech.edu) (on behalf of the GAE group) Korea Workshop May 2005

  2. Outline Prepare Code Collect Results GAE Analysis Submit Monitor Korea Workshop May 2005

  3. Prepare ORCA Job • Install xcmsi to prepare for local CMS software installation • http://cmsdoc.cern.ch/cms/oo/repos_standalone/download/download.sh • Install ORCA using xcmsi • ./xcmsi.pl • Select packages to install • Write and compile the ORCA application • cd to ORCA workspace • Look at ExRunEvent.cpp in ORCA/src/Workspace as an example • More info on using ORCA: http://cmsdoc.cern.ch/orca/ Korea Workshop May 2005

  4. Submit Job • Describe job in Job Description Language (Chimera DAX) • Submit job to Grid Scheduler (Sphinx) • Sphinx submits job and subtasks to remote sites • Use Sphinx job id to monitor job Korea Workshop May 2005

  5. Describe Job in JDL • Chimera DAX: http://www.griphyn.org/chimera/dax-1.6.xsd • Other Job Description Languages being investigated • JDL contains • Input and output logical filenames • Tasks (commands) to be executed • Dependency between Tasks represented as a DAG • Pointer to application data (ORCA shared libraries, .orcarc) Korea Workshop May 2005

  6. Submit Job to Scheduler • Use client tool to submit to Sphinx • Web Service interface provides flexibility for clients • Sphinx client application • CRAB • Web Browser • Sphinx returns a Grid Job Id Korea Workshop May 2005

  7. Sphinx manages job submission • Sphinx locates available resources based on policy information • Cpu • Input data • Network resources • Submit job to remote site via BOSS Korea Workshop May 2005

  8. Monitor Progress • Lifelines give immediate feedback on all job status • BOSS Job Monitoring • MonALISA Monitoring Korea Workshop May 2005

  9. Job Lifeline Korea Workshop May 2005

  10. BOSS Job Monitoring Korea Workshop May 2005

  11. MonALISA Job Monitoring • Correlate Lifelines with remote system status Korea Workshop May 2005

  12. Collect Results • When job is finished, use Logical File Result and Dataset Catalog to obtain result data • CAVES used for version control on ROOT session • Allows sharing analysis code between users and groups • ROOT display for visualization of results Korea Workshop May 2005

  13. CAVES code management Korea Workshop May 2005

  14. View Results Pz,Px,Py plot of Higgs -> WW Korea Workshop May 2005

  15. View Results Korea Workshop May 2005

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