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LHCb planning for DataGRID testbed0

This document provides an overview of the planning, procedure, and status of the LHCb Testbed0 for DataGRID deployment. It includes information on participating institutes, test planning, and test execution. The objective is to deploy basic Globus services and test them.

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LHCb planning for DataGRID testbed0

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  1. LHCb planning for DataGRID testbed0 Eric van Herwijnen Thursday, 10 may 2001

  2. Overview • Information & organization • Testbed0 • Procedure for participating institutes: • Planning of tests: admin • Planning of tests: what to test • Planning of tests: how to do it • Status so far • Timescale

  3. Information and organization Mailing list: • lhcb-grid@listbox.cern.ch CVS repository: • to get Java production tools: • cvs -d $NEWCVSROOT co GRID/productiontools • to get the DataGRID LHCb installation kits: • cvs -d $NEWCVSROOT co GRID/installationkits • to get sample script and .dat files: • cvs -d $NEWCVSROOT co GRID/scripts

  4. Testbed0 • Objective: deploy basic Globus services and test them

  5. Procedure for participating institutes • CERN, Lyon, Marseille, RAL, INFN Bologna, Liverpool, Edinburgh, Imperial, Nikhef • others interested please contact me

  6. Planning of tests: admin • Complete your entry in previous table and contact me (find out exactly what your local testbed0 is from local WP6 contact) • Decide which tests you want to do (e.g. Submit jobs from Bologna to Liverpool) • Get a national Grid certificate following the procedure on http://marianne.in2p3.fr • Get local accounts on the testbeds that you want to test • WP6 will add people to Grid map files

  7. Planning of tests: what to test • Objective: • run bb-bar inclusive generation and reconstruction job via Globus • if possible send data to CERN • update the bookkeeping database • For sites wishing to become part of LHCb production: • installation of java production tools • automate file transfer to CERN

  8. Planning of tests: how to do it • Check out GRID files from cvs repository • uncompress (gunzip *.tar.z) and untar (tar -xvf *.tar) the installation kits • run the bbincl.job script, modify it until it works (don’t worry about java to start with) • when it works, do e.g.: • globus-job-submit csflnx01.rl.ac.uk/jobmanager-pbs bbincl.job • try to recover output with other globus commands or ftp by hand • to install production tools (requires servlet runner) contact me

  9. Status so far • RAL CSF and CERN testbed0 integrated with LHCb production tools • Jobs with 5 events run fine • Larger jobs can be run one at a time, problems with gass_cache under investigation • Problems interfacing to pbs (jobs always end up in M queue) • Problems with using sh or csh

  10. Timescale • Tests of testbed0 should be done before september 2001 (testbed1 release) • LHCb Grid meeting Bologna 13-15 june 2001 • progress on testbed0 tests • security issues for testbed1 • LHCb analysis model

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