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Alain Romeyer - 15/06/20041 CMS farm Mons Final goal : included in the GRID CMS framework To be involved in the CMS data processing scheme.

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Presentation on theme: "Alain Romeyer - 15/06/20041 CMS farm Mons Final goal : included in the GRID CMS framework To be involved in the CMS data processing scheme."— Presentation transcript:

1 Alain Romeyer - 15/06/20041 CMS farm installation @ Mons Final goal : included in the GRID CMS framework To be involved in the CMS data processing scheme Starting point : follow the UCL CMS farm installation Means : install all the CMS simulation and reconstruction software Make them available on all the computer of the farm -> NFS Distribute the jobs in a “clever” way -> CONDOR Store the produced events -> RAID system disk space Near future : Connection to the GRID -> Globus

2 Alain Romeyer - 15/06/20042 Cluster architecture Server Router Computer … 1 Gb/s 100 Mb/s Outer world Raid disk (2.4 TB) OS : Redhat CERN 7.3.3 Cms02 10.0.0.12 Cms03 10.0.0.13 cms01.umh.ac.be 193.190.171.101 Static IP 10.0.0.XXX 10.0.0.11

3 Alain Romeyer - 15/06/20043 Status Current status : 3 PCs (P4 2.4 GHz processor – 2 GB memory) -> 1 server -> 2 for job execution 01/04 : OS installation on each PC -> OK 01-02/04 : CMS software environment -> OK (CMS84 : OSCAR_2_4_6 – ORCA_7_6_1) Programs are distributed via NFS -> OK 03/04 : Job submission and management -> OK (CONDOR 6_6_2) 04-05/04 : Event production -> OK

4 Alain Romeyer - 15/06/20044 Production tests Event production for CMS : Pile-up events (10 000 evts - ~ 1 min / evt) -> 17 hours jobs SUSY events (10 000 evts - ~ 6 min / evt) -> 4.5 day jobs Mix pileup and SUSY events + digitisation (detector response) (10 000 evts - ~ 25 s / evt) -> 7 hour jobs Farm seems operational and stable over ~ 1 week Cacti monitoring tool (http://cms01.umh.ac.be/cacti)http://cms01.umh.ac.be/cacti Works only partially… don’t know why !!!

5 Alain Romeyer - 15/06/20045 Remaining issues CONDOR configuration / firewall daemon wait for job submission on eth1 (local network) But we want to submit jobs from the public network (eth0) CMS01 Public network Local network eth1 eth0 -> playing with iptables rules ? CONDOR daemons How to send email from cms02/03 to the UMH mail server ? -> IP masquerading on cms01 (router)…

6 Alain Romeyer - 15/06/20046 Before moving to GRID… Installation of required dependencies VersionStatus OSRH 7.3OK Gcc2.96OK Java1_4_2_04OK Ant1.6.1OK Junit3.8.1NOT WORKING Bison1.35OK Jakarta4.1.30OK MySQL3.23.56OK Do we need particular things in terms of : QoS Security …?


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