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Efi.uchicago.edu ci.uchicago.edu FAX update Rob Gardner Computation and Enrico Fermi Institutes University of Chicago Sep 9, 2013.

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Presentation on theme: "Efi.uchicago.edu ci.uchicago.edu FAX update Rob Gardner Computation and Enrico Fermi Institutes University of Chicago Sep 9, 2013."— Presentation transcript:

1 efi.uchicago.edu ci.uchicago.edu FAX update Rob Gardner Computation and Enrico Fermi Institutes University of Chicago Sep 9, 2013

2 efi.uchicago.edu ci.uchicago.edu 2 FAX Activities Overview Start from https://twiki.cern.ch/twiki/bin/view/AtlasCom puting/MonitoringFax https://twiki.cern.ch/twiki/bin/view/AtlasCom puting/MonitoringFax – Several notable issues in the SSB requiring attention Xrootd 3.3.3 and N2N updates – https://twiki.cern.ch/twiki/bin/view/AtlasComputin g/Xrootd333Upgrade https://twiki.cern.ch/twiki/bin/view/AtlasComputin g/Xrootd333Upgrade – The status table shows a long way to go before this is finished.

3 efi.uchicago.edu ci.uchicago.edu 3 Functional testing notification Problems are now reported to ADC cloud support lists on a daily basis Need to change to HC-like offline-online notification – Necessary before going into production

4 efi.uchicago.edu ci.uchicago.edu 4 Stress testing Jobs from Ilija submitted using the HC framework Submitted jobs to US ANALY queues and CERN_PROD Conditions at each queue: – Batch of 10 jobs, each coping data from from 7 remote sites – Each job xrdcp’s 10 ~4.5 GB files, randomly chosen from SMWZ FDR data – Total ~ 2.2 TB data to transfer in 70 parallel transfers Time to finish, events/s, MB/s for each job & Panda IDs so jobs can be investigated All jobs submitted through FDR web interface – http://ivukotic.web.cern.ch/ivukotic/FDR/index.asp http://ivukotic.web.cern.ch/ivukotic/FDR/index.asp n.b. we cannot in practice “guarantee” simultaneous starts of jobs, but the workload should be indicative of what generally could be expected. Speeds presented are averages per file, aggregates per link are x10.

5 efi.uchicago.edu ci.uchicago.edu 5 Stress testing US + CERN XRDCP MB/s destination AGLT2BNL_ATLASBUCERN-PRODMWT2OU_OCHEP_SWT2SWT2_CPB source AGLT228.5451.261.530.5716.2164.6520.27 BNL-ATLAS26.5581.222.978.9214.2220.285.73 BU15.0675.9258.122.911.4436.9510.06 CERN-PROD1.6524.821.1582.331.8912.6611.04 MWT28.1757.081.441.487.8737.644.21 OU_OCHEP_SWT2108.8378.6368.78088.2609.64 WT25.337.20.681.696.1114.737.39 Observations & questions BNL the best as destination OU_OCHEP_SWT2 shows great results but was unable to serve to CERN or itself AGLT2 was faster to read from OU than itself Even using CERN as source or destination is not unreasonable

6 efi.uchicago.edu ci.uchicago.edu 6 Stress testing T1s Observations: Very nice rates The only problematic connection INFN-T1 to FZK

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