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Advances in High Energy Physics Control Room Technology at CHEP 2001

Explore the latest technologies showcased at CHEP 2001, including electronic logbooks, objectivity compression, Linux farms, data reconstruction, security for Grid, and more. Learn about innovative solutions and developments in the field of high-energy physics control room technology.

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Advances in High Energy Physics Control Room Technology at CHEP 2001

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  1. CHEP 2001 Highlights Vladimir.Bahyl@cern.ch

  2. CHEP 2001 1/4 • Electronic Logbook for the HEP Control Room (Philippe Canal/FNAL) • multimedia, remotely-viewable, configurable, platform independent • GDML (Radovan Chytráček/CERN) • Geometry description of detectors • Geant4 prototype in C++ • To Compress or Not to Compress (Andrew Hanushevsky/SLAC) • Objectivity compression database support • Compared ootidy, zlib, zz-comp • 2x capacity vs. 9x servers

  3. CHEP 2001 2/4 • The Linux Farm at the RCF (Antonio Chan/BNL) • CRS – Reconstruction - 187 CPUs • Batch only, own batch software written in Perl • CAS – Analysis - 151 CPUs • Batch and interactive access, LSF • VACM, web based monitoring, NFS, AFS • Linux @ DESY (Knut Woller/DESY) • 750 in Hamburg, 160 in Zeuthen • SuSE (YaST) – 200 pkgs locally – rest in AFS • server/personal workstation configurations • www.netsaint.org

  4. CHEP 2001 3/4 • D0 Reconstruction Farm (Lee Lueking/FNAL) • 40 dual-CPU PC’s – testing, 50 in production • 4 CPU SGI Origin 2000 for $HOME • SAM/Enstore - data delivery, FBS - job control • The CDF Run 2 Offline Computer Farms (Pasha Murat/FNAL) • 2 I/O SGI nodes (staging, NFS, control) • 154 dual-CPU PCs, 1 GB I/O files, 20 MB/sec • Experiences Constructing and Running Large Shared Clusters at CERN (Vladimír Bahyl/CERN)

  5. CHEP 2001 4/4 • Security for Grid (Robert Cowles/SLAC) • Authorization and authentication based on PKI • Possible authentication solutions: • Accounts everywhere, Central DB of userid/passwords, Central DB combined with distributed DB, Decentralize • Variations: Proxy/Delegation, Community Authorization Service, MyProxy • Object features of Oracle 9i (Marcin Nowak/CERN) • Object modeling (SQL 1999), OTT, C++ binding via OCCI • VLDB features for HEP (tablespaces, partitioning)

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