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CC-J: Progress, Prospects and PBS. Shin’ya Sawada (KEK) For CCJ-WG. Current Configuration. SUN E450 2 x 400MHz CPUs 0.3GB work disk Linux farms (Alta Cluster) 32 CPUs (16 nodes) with memory of 128MB/cpu Pentium II 450MHz: 18.5 SPECint95/cpu HPSS 100TB tape robot 5 SP2 servers

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cc j progress prospects and pbs

CC-J: Progress, Prospects and PBS

Shin’ya Sawada (KEK)

For CCJ-WG

PHENIX Comp. Mtg.

current configuration
Current Configuration
  • SUN E450
    • 2 x 400MHz CPUs
    • 0.3GB work disk
  • Linux farms (Alta Cluster)
    • 32 CPUs (16 nodes) with memory of 128MB/cpu
    • Pentium II 450MHz: 18.5 SPECint95/cpu
  • HPSS
    • 100TB tape robot
    • 5 SP2 servers
  • Network: Gigabit ethernet and HiPPI

PHENIX Comp. Mtg.

performance test
Performance Test
  • PHENIX software
  • Pftp between Linux nodes and HPSS
    • ~50MB/s total with ~100% CPU usage of disk serers

PHENIX Comp. Mtg.

slide4
AFS
  • Arla vs Transarc AFS client
    • Arla is still very unstable from test results at CC-J.
  • Transarc AFS 3.5 (patch2) client test
    • RH 5.2, kernel 2.2.10 SMP: OK
    • RH 5.2, kernel 2.2.10 SMP with NFSv3: NG with a CVS error
    • RH 6.0, kernel 2.2.10 SMP: OK
    • RH 6.0 kernel, 2.2.10 SMP with NFSv3: NG with a CVS error

PHENIX Comp. Mtg.

slide5
Pbs_server

On ccjsun

Pbs_sched

Pbs_mom

On each node

On each node

PBS
  • http://pbs.mrj.com
  • Very flexible scheduling policies
  • Very flexible queue setting
  • Quick communication with the developing group
  • ‘Interactive’ batch job available
  • Current queues: see table
    • 1 job / cpu
    • Negative priority leads leads to jobs more than 1 job/cpu.

PHENIX Comp. Mtg.

prospects
Prospects
  • Installation of new hardware
    • SUN E450 server with four 400MHz CPUs and 1GB memory by the end of October
      • Dedicated as a file server
      • Login by general users will be prohibited.
    • 1.6 TB disk by the end of October
      • Served as working space for users
      • Will have two 800GB partitions.
    • Alta Cluster boxes by the end of October
      • 16 nodes = 32 CPUs with RH5.2
      • Pentium III 600MHz => 24 SPECint95/cpu
      • Total of 1360 SPECint95 will be available by the end of October.

PHENIX Comp. Mtg.

schedule
Schedule
  • Hardware installation/tuning: - Nov 5
  • Stress test (MDCJ3?): Nov 8 – Dec 10
  • Hardware move: Dec 13 – Jan 14
  • Final test/tuning: Jan 17 – Jan 31?
  • We are going to have a test period (MDCJ3?) in November and December for about one month. If the schedule of RCF/PHENIX MDC3(?) meets ours, CC-J may generate a part of simulation data for it.

PHENIX Comp. Mtg.

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