Difference between revisions of "Atlas:Analysis ST 2009"

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29.01.09
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--[[User:Chollet|Chollet]] 11:59, 17 avril 2009 (CET)
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==== FR Cloud ST (2009 plans) ====
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* [http://lcg.in2p3.fr/wiki/index.php/Atlas:Analysis_Challenge_ST  Details of Site Stress test] : procedure, test conditions, file access modes, targets..
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* Weekly ST : 50 jobs per site - all sites involved
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* [http://lcg.in2p3.fr/wiki/index.php/Atlas:Analysis_ST_2009_Errors  Errors follow-up and known issues] : wiki page for comments, errors seen, site feedback
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** LPSC : included (tested during http://gangarobot.cern.ch/st/test_117/)
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== STEP09==
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** BEIJING : switch to SE dpm ccsrm.ihep.ac.cn (tested during http://gangarobot.cern.ch/st/test_117/)
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* https://twiki.cern.ch/twiki/bin/view/Atlas/StressTestJobs
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  test 117 has shown missmatch with VO_ATLAS_DEFAULT_SE: srm.ihep.ac.cn
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== Results and Summary  ==
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  should be OK now
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* ATLAS ST results : http://gangarobot.cern.ch/st/all.html
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* ATLAS ST summary : http://gangarobot.cern.ch/st/summary.html
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* '''Results of on-going ST Tests on FR Cloud'''
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Number of jobs per site (~ 15 % of job slots) :
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    IN2P3-CC_MCDISK: 200 jobs
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    IN2P3-LPC_MCDISK: 100 jobs
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    GRIF-LAL_MCDISK: 200 jobs
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    GRIF-SACLAY_MCDISK: 80 jobs
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    GRIF-LPNHE_MCDISK: 100 jobs
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    IN2P3-LAPP_MCDISK: 100 jobs
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    TOKYO-LCG2_MCDISK: 200 jobs
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    BEIJING-LCG2_MCDISK: 80 jobs
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    RO-02-NIPNE_MCDISK: 50 jobs
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    RO-07-NIPNE_MCDISK: 50 jobs
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    IN2P3-CPPM_MCDISK: 50 jobs
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    IN2P3-LPSC_MCDISK: 50 jobs
  
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* File access comparison : 209-01-29 16:00 UTC
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[http://lcg.in2p3.fr/wiki/images/ST_192-220-stat.pdf http://lcg.in2p3.fr/wiki/images/ATLAS-ongoingST.png]
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**http://gangarobot.cern.ch/st/test_124/ 50 jobs Posix I/O
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* [http://lcg.in2p3.fr/wiki/images/ST_124-188-stat.pdf '''Results of ST Tests (50 jobs per site) 124 to 188 on FR Cloud''' ]
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**http://gangarobot.cern.ch/st/test_125/  50 jobs FileStager
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== ATLAS Contacts ==
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* Optimization and Site Stress test: On demand and dedicated to sites which are interrested.  
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* LPC : Nabil Ghodbane - Nabil.Ghodbane@cern.ch
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GRIF : GRIFOPN test (as soon as it is available) Total of 1000 jobs will
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* LAL : Nicolas Makovec
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be distributed to ATLAS CEs with following DS available being accessed
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* LAPP : Stéphane Jézéquel
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from LAL, SACLAY and LPNHE
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* CPPM : Emmanuel Le Guirriec
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        - GRIF-SACLAY_MCDISK: 332
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* LPSC : Sabine Crepe
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        - GRIF-LPNHE_MCDISK: 334
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* LPNHE : Tristan Beau
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        - GRIF-LAL_MCDISK: 457
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* CC-T2 : Catherine, Ghita
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LPC : to be planned when new storage arrays installation and network 
 
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      upgrade done
 
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      DS available on IN2P3-LPC_MCDISK: 326
 
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LAPP-CPPM : interrested by a stress test ~130 DS available there
 
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TOKYO : Input DS available on TOKYO-LCG2_MCDISK: 1000
 
  
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==== Input DS available ====
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== Input DS available ==
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* Thanks to Stéphane, followong DS available at sites (27/01/09):
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* DS available at sites (10/04/09)
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  {'TOKYO-LCG2_MCDISK': 1038, 'IN2P3-LPC_MCDISK': 342,
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  'TOKYO-LCG2_MCDISK': 1068, 'IN2P3-LPC_MCDISK': 166,
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  'IN2P3-CPPM_MCDISK': 185, 'GRIF-SACLAY_MCDISK': 369,
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  'IN2P3-CPPM_MCDISK': 281, 'GRIF-SACLAY_MCDISK': 335,
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  'GRIF-LPNHE_MCDISK': 380, 'IN2P3-LAPP_MCDISK': 284,
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  'GRIF-LPNHE_MCDISK': 374, 'IN2P3-LAPP_MCDISK': 563,
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  'IN2P3-LPSC_MCDISK': 143, 'GRIF-LAL_MCDISK': 493,
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  'IN2P3-LPSC_MCDISK': 204, 'GRIF-LAL_MCDISK': 426,
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  'RO-02-NIPNE_MCDISK': 184, 'BEIJING-LCG2_MCDISK': 129,
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  'RO-02-NIPNE_MCDISK': 202, 'BEIJING-LCG2_MCDISK': 129,
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  'RO-07-NIPNE_MCDISK': 171}
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  'RO-07-NIPNE_MCDISK': 189
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==== File access modes used by Ganga Jobs ====
 
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Currently if users are submitting Ganga jobs with the LCG backend, the
 
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posix I/O access is the default method to access files
 
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'''(j.inputdata.type='DQ2_LOCAL')'''
 
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One of the alternative access mode used by ST tests is the FileStager mode, which copies the input files in a background thread of the athena event loop usinglcg-cp from the local SE to the worker node tmp area.
 
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'''(j.inputdata.type='FILE_STAGER')'''
 
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This mode still needs a bit of improvements to gain full stability, but as demonstrated good performance at some (but not all) sites.
 
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Two access modes may be used during ST tests.
 

Latest revision as of 15:45, 19 octobre 2009

--Chollet 11:59, 17 avril 2009 (CET)

STEP09

Results and Summary

Number of jobs per site (~ 15 % of job slots) :
   IN2P3-CC_MCDISK: 200 jobs
   IN2P3-LPC_MCDISK: 100 jobs
   GRIF-LAL_MCDISK: 200 jobs
   GRIF-SACLAY_MCDISK: 80 jobs
   GRIF-LPNHE_MCDISK: 100 jobs
   IN2P3-LAPP_MCDISK: 100 jobs
   TOKYO-LCG2_MCDISK: 200 jobs
   BEIJING-LCG2_MCDISK: 80 jobs
   RO-02-NIPNE_MCDISK: 50 jobs
   RO-07-NIPNE_MCDISK: 50 jobs
   IN2P3-CPPM_MCDISK: 50 jobs
   IN2P3-LPSC_MCDISK: 50 jobs

http://lcg.in2p3.fr/wiki/images/ATLAS-ongoingST.png

ATLAS Contacts

  • LPC : Nabil Ghodbane - Nabil.Ghodbane@cern.ch
  • LAL : Nicolas Makovec
  • LAPP : Stéphane Jézéquel
  • CPPM : Emmanuel Le Guirriec
  • LPSC : Sabine Crepe
  • LPNHE : Tristan Beau
  • CC-T2 : Catherine, Ghita

Input DS available

  • DS available at sites (10/04/09)
'TOKYO-LCG2_MCDISK': 1068, 'IN2P3-LPC_MCDISK': 166,
'IN2P3-CPPM_MCDISK': 281, 'GRIF-SACLAY_MCDISK': 335,
'GRIF-LPNHE_MCDISK': 374, 'IN2P3-LAPP_MCDISK': 563,
'IN2P3-LPSC_MCDISK': 204, 'GRIF-LAL_MCDISK': 426,
'RO-02-NIPNE_MCDISK': 202, 'BEIJING-LCG2_MCDISK': 129,
'RO-07-NIPNE_MCDISK': 189
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