CAUTION

This is not an ATLAS official page.

Any information on this page is not guaranteed by ATLAS.

Please have a look in the official page concerning computing operations http://cern.ch/atlas-computing/operations/operations.php for the official information.

Your contribution is welcome to add, correct and update the contents.



General Information

Information concerning the ATLAS Computing Operations will be found at

and ATLAS Computing Resources at

You can see which sites are available for the productions at

Some communications will be made in;

Requirements

for a LCG site to join the ATLAS productions:

Tier0 test

  • Atlas/TierZero20071

DDM Functional Test

October test

September test

SC4

Calibration Data Challenge

LCG

The current recommended release is gLite-3.0, especially for SC4

  • LCG 2_7_0 is also usable, but many improvements/bug fixes are included in gLite-3.0

  • LCG 2_6_0 has some problems.
  • We will have to upgrade to LCG 2.7.0 while minimizing the interference to our on-going productions. ( 7 Feb 2006, Zhongliang Ren)

VO Box

Publishing Information

  • GlueHostBenchmarkSI00

Known Problems

Atlas Software

This is done by the deployment team (see AtlasSoftOnLCG2 and also the talks by A.DS comp-opr 15.dec.2006, at SW week 12.sep.2006). The current deployment status can also be seen by following the link there. In case the necessary atlas software release is not installed in a site, a request should be made following the instructions there.

The releases currently used in productions;

  • 11.0.X (tasks)
  • 12.0.X tasks
    • 12.0.31 (tasks)
      • 12.0.31.8: 1mm range cut since 12.0.31.4
    • 12.0.5 (status) (tasks)
      • 12.0.5.3: The final patched version id 12.0.5.3. This is being rebuilt as 12.0.6
    • 12.0.6 (status) (tasks) - The clean bug fixed version of 12.0.5. To be used for CSC reconstruction and pileup
      • 12.0.6.5 (status)
        Calibration constants used in ALL 12.0.6.1 reconstruction were obtained for "30 microns"
        Large scale atlfast (12.0.6.2)
        SAN/Tag/DPD (12.0.6.2) needed in part for computing model test

Releases in validation on grids;

Coming releases;

Previous releases;

  • Cronus is being tested with 12.3.0 validation jobs
  • 12.0.4 Waiting for transformation
  • 12.0.31
  • 12.0.3 expected to be the production release (2006.08.11)
  • 12.0.2 Release 12.0.2 validation started yesterday (25 August 2006) Release available today – installation starting (18 August 2006), Release is expected early next week (11 August 2006)
  • 12.0.1 Very high failure rate on all grids – many bugs found (2006.08.11) released tuesday, July 11th. Installation in progress (2006.07.14. report from A.DS and K.D at comp-oper meeting)
    Expected early next week for grid - still under validation (2006.06.30.)
  • 12.0.0

  • 11.5.0 Not tested yet. Kit has been available since May 9th, and installed in many places, but no transformation kit ready. (26.May.2006)
  • 11.3.0 tasks failed on all grids (26.May.2006)

  • 11.0.42 Production with 11.0.42 started since the April 2006 SW&C workshop after the G4 bug was fixed hopefully! (21 Apr. 2006)
  • 11.0.41 for reconstruction
  • 11.0.4 for simulation and digitization (bug found in simulation; see 11.0.42)

DDM (Distributed Data Management)

  • Useful stuff
    • Stephane's script for removing files from a DPM SE (written as to work at LAPP and for French T2's. You need to modify to work at other sites.) /afs/cern.ch/user/j/jezequel/public/dq_off/delete_dpm.sh

Conditions Database

  • Options for Tier-2s (from the presentation at the Tier2 workshop):
    • Access Oracle server of nearest Tier-1
      • OK for small scale access, limited by network latencies and load on Tier-1 server
    • Extract needed COOL data into an SQLite file (tools exist)
      • A "one shot" replication, only practical for a subset of data (e.g. for simulation use case)
    • Maintain a "live" database copy in MySQL - run a local MySQL condDB server
      • Tool being developed to synchronise two COOL databases and copy recent updates
      • Will probably be needed for sites doing significant calibration work
      • Again, only practical for subsets of the full conditions database
    • Use of Oracle is not excluded, but a lot of work would be needed to maintain it.

Resources Requirements

CPU

Memory

Storage

  • Installation of Atlas Software requires at least 10 GB of shared filesystem among WNs.

Tier2


Links


created -- iueda - 09 Mar 2006
last update -- Main.iueda - 30 May 2007
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Topic revision: r27 - 2008-05-26 - MiguelBranco
 
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