1 / 8

ALICE Computing Resources requirements

ALICE Computing Resources requirements. WLCG OB 18 March 2011. USAGE in 2010. Data collected (filtered by physics trigger) Data processing. Reconstruction: 10% MC & Trains: 75% End users A: 15%. Storage filling up quickly. Memory profile PbPb reco. New in the Computing model.

malana
Download Presentation

ALICE Computing Resources requirements

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ALICE Computing Resources requirements WLCG OB 18 March 2011

  2. USAGE in 2010 • Data collected (filtered by physics trigger) • Data processing Reconstruction: 10% MC & Trains: 75% End users A: 15%

  3. Storage filling up quickly

  4. Memory profile PbPbreco

  5. New in the Computing model • Additional reconstruction pass on a fraction of raw data for calibration (central tracking mainly) • Major CPU power increase • in AA reconstruction due to a new V0 finder algorithm • In MC due to additional details in digitization of drift detectors (does not scale with tracks) • New detectors (EMCAL and new TRD modules since 2011) • Trigger mix • in AA selecting central collisions • in pp high multiplicity • Additional post-reco calibration as a tender of the analysis train

  6. New in the Computing model 2010 CM Parameters (comparison with parameters used for the 2010 requirements)

  7. LHC running scenario • pp data taking from March 2011(2012) to October 2011(2012) (135 days, with a 50% LHC availability and a 46% LHC efficiency, 2.7×106 effective seconds; 1.0×109 events, 5×108 MB events + 0.5×108 rare events) • AA data taking from November 2011(2012) to December 2011(2012) (19 days, with a 50% LHC availability and a 46% LHC efficiency, 3.7×105 effective seconds; 7.4×107 events) • LHC shutdown in 2013 Requirements

  8. Comparison with pledges Pledged data from C-RRB October 2010

More Related