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The Status of OSC

The Status of OSC. In preparation for the 2004 ALICE Physics Data Challenge By Bj ørn S. Nilsen The Ohio State University And The Ohio Supercomputing Center. Outline. Hardware Status Clusters Storage Software Status Network Outstanding Issues. Hardware Status Clusters.

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The Status of OSC

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  1. The Status of OSC In preparation for the 2004 ALICE Physics Data Challenge By Bjørn S. Nilsen The Ohio State University And The Ohio Supercomputing Center

  2. Outline • Hardware Status • Clusters • Storage • Software Status • Network • Outstanding Issues Presented By Bjorn S. Nilsen at the March 2004 Alice Offline Week

  3. Hardware StatusClusters • Itanium (ai64.osc.edu front end mck-login1.osc.edu) • 40 Alien job limit out of 296 cpus (presently set to 1?) • Cluster is very busy and expensive to run on. • Common data storage with i32 cluster. • AMD/P4 cluster (alice.osc.edu front end) • 40 Alien job limit out of 256 cpus (AMD 1.4) • Migration from AMD to p4 April • 512, 2.4GHz Intel P4 • Should support larger number of concurrent jobs Presented By Bjorn S. Nilsen at the March 2004 Alice Offline Week

  4. Hardware StatusStorage • IBM 3494 and 3584 tape libraries. • Additional frames/drives and tapes can easily be added • Investigating use of CASTOR • Installing IBM Storagetank system (same as CERN) • 30Tb of storage available (10 for SDD Test Beam data) • Total of 500Tb system • Migration form old system to new in progress • Will require changes to AliEn catalog • Otherwise similar file access Presented By Bjorn S. Nilsen at the March 2004 Alice Offline Week

  5. Software Status • I64 • AliEn 1.32.14 installed • gcc 2.96/3.2 & Intel 6.08.0, Globus 2.2.4 PBS 2.3.12 • I32 • AliEn 1.33.15 installed and Running • gcc 2.96/3.0.4 & Intel 6.08.0, Globus 2.2.4 PBS 2.3.12 • RFIO 5.2 installed but needs configuration • GridFTP installed Presented By Bjorn S. Nilsen at the March 2004 Alice Offline Week

  6. Network • Nothing new • CERN  Chicago Star-Tap • Chicago  Columbus Abilene • Columbus  OSC OARNet • Slowest link is OC12. • End-to-end performance characterization of link would be useful. Presented By Bjorn S. Nilsen at the March 2004 Alice Offline Week

  7. Outstanding issues • OSC-Itanium ALiEn queue needs updating • Jan Labanowski has left OSC. OSC support of Offline web pages has been dropped • SAN.FS/Storagetank installation will initially be for user home directories (50TB) • Larger SAN.FS file systems available in the future • Distributed storage tank may be a future feature to take advantage of • Need some assistance for configuring RFIO clients at OSC. Presented By Bjorn S. Nilsen at the March 2004 Alice Offline Week

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