1 / 6

Cambridge Grid Facilites

Cambridge Grid Facilites. UK HEP Sysman meeting Cambridge 23/10/06. LCG/Southgrid. Part of Southgrid distributed tier 2 - HEP Farm Running gLite version 3.0.5 Batch system: Condor 6.8.1 Head nodes: CE, SE, UI, MON/LFC Supported VOs: Atlas, Alice, LHCb, CMS, dteam, biomed, NA48, ops

tekli
Download Presentation

Cambridge Grid Facilites

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. Cambridge Grid Facilites UK HEP Sysman meeting Cambridge 23/10/06

  2. LCG/Southgrid • Part of Southgrid distributed tier 2 - HEP Farm • Running gLite version 3.0.5 • Batch system: Condor 6.8.1 • Head nodes: CE, SE, UI, MON/LFC • Supported VOs: Atlas, Alice, LHCb, CMS, dteam, biomed, NA48, ops • 43 WNs, 2.3TB storage • GridMON box in operation • 24hrs transfer tests good, Castor test less good Andy Parker

  3. Condor • Still not happy with the type of support for Condor • LCG deploy development releases, instead of production releases, and overwrite updated versions (!**@!) • We remove their release during installation and install the correct production release Andy Parker

  4. Condor/Camgrid • Use of Condor allows us to participate in CamGrid, and hence receive SRIF money • 20-30 new dual core/dual socket servers to be delivered this autumn • £450k SRIF invested in CamGrid this year. • 400 HEFCE machines linked up • 400 new servers for HPCF Andy Parker

  5. WN WN WN WN WN WN WN WN WN WN WN WN WN WN WN CamGrid configuration LCG CamGrid SE Farm CE Condor Condor flocking Want to send LCG jobs over to Camgrid Andy Parker

  6. LCG makes life difficult • LCG runs top down, inflexible, intrusive middleware • Need outbound connectivity from every WN (use NAT) • Need experiment and middleware core (remote mount central store: chirp/parrot) • Need user accounts for experiments (require root access - not popular) • Tests of NAT and chirp in progress. User accounts likely to restrict ability to share CamGrid resources. Andy Parker

More Related