PHENIX CC-J Updates in Nov 99 — New

PHENIX CC-J Updates in Nov. 99 - New Hardware N. Hayashi / RIKEN November 10, 1999 PHENIX Computing Meeting @BNL November 10, 1999 PHENIX CC-J Updates in Nov. 99 1

CC-J Development & Construction in Wako • Hardware & system software – – – T. Ichihara Y. Watanabe N. Hayashi S. Sawada (KEK) S. Yokkaichi(Kyoto) H. Hamagaki (CNS, Tokyo) - manager, network - HPSS, data duplication facility - network, linux, job control - PBS - monitor - AFS • Simulation & offline software (at BNL) – H. I. • K. Shigaki (KEK), S. Nishimura (CNS, Tokyo), A. Kiyomichi (Tsukuba) – spin • A. Taketani, Y. Mao, YG, H. Sato (Kyoto) November 10, 1999 PHENIX CC-J Updates in Nov. 99 2

New Hardware arrived • 3 rd & 4 th Alta Clusters – – – RH 5. 2 preinstalled: not 6. 0 3 rd and 4 th: Dual Pentium III 600 MHz x 16 nodes 1 st and 2 nd: Dual Pentium II 450 MHz x 16 nodes Total … 1360 SPECint 95 Enough capacity of UPS to serve two more boxes • 1. 6 Tela Bytes RAID disk • 2 nd Sun E 450 as a new NFS server – 4 CPU model • Located on RIKEN main building 2 nd floor November 10, 1999 PHENIX CC-J Updates in Nov. 99 3

CCJSUN and CCJNFS 0 November 10, 1999 PHENIX CC-J Updates in Nov. 99 4

Sun and Disk • 1. 6 TB RAID 288 GB RAID ccjnfs 0 (NFS server) ccjsun (gateway) UPS for Sun and disk November 10, 1999 PHENIX CC-J Updates in Nov. 99 5

Alta Clusters • 4 th 2 nd 1 st 3 rd UPS for Alta Cluster November 10, 1999 PHENIX CC-J Updates in Nov. 99 6

Alta Cluster Controller & Gbit • Gbit Switch Gbit Hub Alta. Cluster Controller November 10, 1999 PHENIX CC-J Updates in Nov. 99 7

1. 6 Tela Disk • RAID Level 5 • 800 GB x 2 partitions – Solaris 2. 6 support up to 1 TB – Solaris 7 (64 bit OS) is too fragile • Vx. FS – Veritas File System – fsck free! November 10, 1999 PHENIX CC-J Updates in Nov. 99 8

http: //ccjsun. riken. go. jp/ccj/Wako-Sys/ November 10, 1999 PHENIX CC-J Updates in Nov. 99 9

Schedule • Installation (disk reconfiguration etc. ) almost done • Needs stress test: new-MDC? • HPSS stops definitely on Dec. 10, 1999 – Due to moving of HPSS stuff to new building – Alta Cluster can operated without HPSS • HPSS restarts on Jan 5, 2000 – could be restarted in Dec. 27, but a week-long new year holidays follows. • HPSS final readiness review begins on Feb. , 2000 • Another moving (Linux PCs) around April? November 10, 1999 PHENIX CC-J Updates in Nov. 99 10

Schedule (cont’) • We are still “pre Test Operation” period now • Test Operation starts Feb? • Official Open on Spring. April? November 10, 1999 PHENIX CC-J Updates in Nov. 99 11

New Data Challenge at CC-J? • MDC 3? VRDC? • Our stress test can be combined with a part of PRDF production for VRDC • Need PWG inputs – How many events? What kinds? required CPU & Disk? • Sharing tasks both RCF (rcas & rcrs) and CC-J? • Setup Environment – PISA 99 and its PRDF writing routine – Automated scripts, monitoring tools, …. , DB? • Data transfer PRDF to RCF? Mostly Tape? • Required man power? Updates in Nov. 99 November 10, 1999 PHENIX CC-J 12

Memo from Yuji & Shin’ya • – – – • Events – should be available by the end of this week. will be installed from the beginning of the next week. should be installed by the mid next week. – – – should be available by the mid next week. should be prepared by Charlie and each PWG. note: Requests from PWGs should be informed to CC-J by the mid next week. Job scripts – are modified from those used for MDC 2 by CC-J-WG. will be generated during Nov 22 - Dec 5 (two weeks). assumptions and rough estimations: available number of CPUs = 60 for Au-Au • • • Input data/file – • • PISA 99 preparation – for p-p • • CPU time 1 ksec/event data size 10 MB/event 50 k events => 10 days, 500 GB CPU time 10 sec/event data size 50 k. B/event (after compression) 5 M events => 10 days, 250 GB Data transfer – – will be by magnetic tapes. (1 TB = 50 GB/tape x 20 tapes) note: Temporally dosk storage at RCF is needed. November 10, 1999 PHENIX CC-J Updates in Nov. 99 13

Summary • New hardware, Linux PC, Sun, Disk, delivered and installed • They are waiting for stress test • Possibility to combine this stress test and VRDC (MDC 3? ) • HPSS unavailable Dec. 11 to Jan. 5 November 10, 1999 PHENIX CC-J Updates in Nov. 99 14