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This description is not supposed to replace the various howto's for running jobs on the Grid. It is merely a summary of what I have to do to run jobs on the grid. If people use it as their howto - go ahead.

This guide uses the jdlgen, status, ... scripts written by Alessandro de Salvo. Please have a look at this webpage written by James Catmore and setup the right environment.

Step by step to the grid:

  • Get a certificate smile
  • login to lxplus and type:
source /afs/
  • Get a very long certificate! If your grid token expires before the jobs are finished they will all be aborted.
grid-proxy-init -valid 100:00
gives you a proxy which last for 100 hours.
  • cd to your grid environment (as setup with James guide) and type
  • create jdl job description files with the command jdlgen
jdlgen -r 9.0.4 -d 4020 -D tth120_bb --in-step evgen904 --out-step g4initial904 \
-p private -t 09-00-04-06 -e 2 --in-part 1:1 --out-part 1:5 -s
--eta-min=-4. --eta_max=+4.
This line implies that you have ONE input file registered with the logical file name (LFN) private.004020.evgen904.tth120_bb._00001.pool.root. You want to have 5 output files with 2 events each simulated in an eta range of -4. to +4. You also need to have a template file in your templates directory with the name private.pythiaB.g4initial904.jdl.template.

I can register an input file with:

lcg-cr --vo atlas -d -l <LFNofFile> -g guid:<PoolFileID> \
The LFN of the file is arbitrary. As a convention it is simply the filename itself.

-- DerSchrecklicheSven - 22 Apr 2005

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Topic revision: r3 - 2005-04-25 - AndreasWildauer
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