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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.


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.


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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