1 / 10

Simulation Production at UTD

Simulation Production at UTD. Shuwei YE, UT-Dallas DOE Review, Nov. 17, 2004. Outline. SP5  SP6 migration Operation challenges UTD Production Preparation for SP6  SP7 migration. SP5  SP6 migration. Started in the end of Jan-2004

chaman
Télécharger la présentation

Simulation Production at UTD

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. Simulation Production at UTD Shuwei YE, UT-Dallas DOE Review, Nov. 17, 2004

  2. Outline • SP5  SP6 migration • Operation challenges • UTD Production • Preparation for SP6  SP7 migration

  3. SP5  SP6 migration • Started in the end of Jan-2004 • Smooth in general owing to last experience • Big changes in production • Problem with merging and export

  4. Big changes in SP6 • No evt database, in ROOT format • Cond/cfg database only • Automatic transfer and cleanup  non-stop production • Replace bbftp with bbcp because of file fragments in bbftp

  5. Trouble shooting in SP • Objy-NFS lives with disk automount: • Trouble with spmerge, spexport: solved by “LD_LIBRARY_PATH” • spmerge failure in August caused by a VERY RARE case: a node failed just before a job was done

  6. Hardware challenges • Occasional corrupt disk and bad memory we have spare disk, but no spare memory • A/C failures: July 2004, September 2004 • Power outage: electrical infrastrure upgrade • Corrupt file system  loss of database and useful scripts

  7. Hardward Problems • A/C problem (addressed in Xinchou’s talk) • Old RAID problem (spare disks available) • Rare unexpected power outage (could damage databases)

  8. UTD SP6 production Power Upgrade Official Report UTD is No. 2 in the world before August

  9. UTD total production UTD total production • 180 Million SP6 events • 170 Million SP5 events • 70 Million SP4 events

  10. SP7 preparation Major changes besides routine updates • Objy 7.2  8.0.9 (wait until SP7 is ready) • Operating System: RHEL or SL We did testing on SL and have passed SP6 validation.

More Related