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SPRACE Cluster

The SPRACE cluster is a T2 site of the CMS collaboration at the Worldwide LHC Computing Grid (WLCG) infrastructure.

General Summary

Date # Nodes #Cores HEP-SPEC06 Storage (TB Raw) Storage (TiB)
March/2012 80 320 2,630   372
May/2012 80 320 2,630   372

Overview

  • 64 bits architecture
  • 5 head nodes
  • 8 storage nodes (372TiB effective disk space)
  • 80 worker nodes / 320 cores (2,630 HEP-SPEC06 of computing power)

Worker Nodes summary

SPRACE has 80 worker nodes corersponding to 320 computing cores. Those servers were bought at different times (phases), according to the evolution of the project, that started in 2004.

Phase Vendor Model Processor Cores RAM # of nodes
II Itautec Infoserver LX210 2 x Intel Xeon EMT64T @ 3.0 GHz 2 2 GB 32
III Itautec Infoserver LX211 2 x Intel Xeon Dual-Core @ 2.0 GHz 4 4 GB 32
IV SGI altix xe 340SGI 2 x Intel Xeon Quad-Core E5620 @ 2.40 GHz 8 24 GB 16

Storage summary

SPRACE has a dCache based storage with 372TiB of effecive disk space, distributed in three SunFire (48TB raw disk space) servers, and in five Supermicro (72TB raw disk space) servers.

Phase Vendor Model Processor Cores RAM Disk Space # of nodes
IV Sun SunFire X4540 2 x AMD Opteron Quad-Core 2384 @ 2.7 GHz 8 64GB 34TiB 3
IV Supermicro MBD-X8DTI-F 2 x Intel Xeon Quad-Core E5620 @ 2.4GHz 8 24GB 54TiB 5

Head Nodes summary

SPRACE has 5 head nodes, one for local users access (access), one for open sience grid compute element middleware (osg-ce), one for open sience grid storage element middleware (osg-se), and two for general tasks (spserv01 and spserv02).

  • access.sprace.org.br
    • Silicon Graphics Inc. model altix xe 270
    • 02 processors Intel(R) Xeon(R) E5620 @ 2.40GHz, cache 12288 KB ( total: 8 cores )
    • RAM 24GB
    • /dev/sda 280 GB
    • /dev/sdb - 2.5 TB (4x1TB ST31000340NS)

  • osg-ce.sprace.org.br
    • Silicon Graphics Inc. model altix xe 270
    • 02 processors Intel(R) Xeon(R) E5620 @ 2.40GHz, cache 12288 KB ( total: 8 cores )
    • RAM 24GB
    • /dev/sda 1.0 TB (RAID-5 3x500GB ST3500320NS)

  • osg-se.sprace.org.br
    • Silicon Graphics Inc. model altix xe 270
    • 02 processors Intel(R) Xeon(R) E5620 @ 2.40GHz, cache 12288 KB ( total: 8 cores )
    • RAM 24GB
    • /dev/sda 1.0 TB (RAID-5 3x500GB ST3500320NS)

  • spserv01.sprace.org.br
    • Silicon Graphics Inc. model altix xe 270
    • 02 processors Intel(R) Xeon(R) E5620 @ 2.40GHz, cache 12288 KB ( total: 8 cores )
    • RAM 24GB
    • /dev/sda 1.0 TB (RAID-5 3x500GB ST3500320NS)

  • spserv02.sprace.org.br
    • Silicon Graphics Inc. model altix xe 270
    • 02 processors Intel(R) Xeon(R) E5620 @ 2.40GHz, cache 12288 KB ( total: 8 cores )
    • RAM 24GB
    • /dev/sda 280 GB
    • /dev/sdb - 2.5 TB (4x1TB ST31000340NS)

Decommissioned Hardware

Some machines, bought at phase I of the project, were decommissioned because they were based on a 32 bits architecture. Other machines bought at phase II were also decommissioned because their hardware warranty has expired.

Processing hardware

Phase Vendor Model Processor Cores RAM # of nodes
I Itautec Infoserver 1252 2 x Intel Xeon DP 2.4 GHz 2 1 GB 24

Storage hardware

Phase Vendor Model Processor Cores RAM # of nodes
I Dell PowerEdge 2650 2 X Intel Xeon 2.4 GHz 2 2 GB 1
II Dell PowerEdge 1850 2 X Intel Xeon 3.0 GHz 2 2 GB 1

Phase Vendor Model Raw Disk Space # of units
I Dell PowerVault 220S 2TB 2
II Dell PowerVault 220S 4TB 2

WLCG pledges

WLCG pledges for 2012

According to the WLCG pledges for 2012, a nominal T2 site is

  • 10.9 KHS06 of Processing Ressources
  • 810TB of Disk Space
    • 30TB of Stage-Out Space
    • 250TB of Group Space (125TB per group)
    • 200TB of Central Space
    • 170TB of Local Space
    • 160TB of User Space (~40 Users of 4TB each).

SPRACE status on March 2012

The current SPRACE status is

  • 2.63 KHS06 of Processing Ressources
  • 372TB of Disk Space
    • 20TB of Stage-Out Space
    • 100TB of Group Space (125 TB per group)
    • 100TB of Central Space
    • 80TB of Local Space
    • 72TB of User Space (~40 Users of 4 TB each).

SPRACE status after V phase

After the next upgrade, corresponding to phase V, that will be installed by the end of may, the SPRACE status will be

  • 10 KHS06 of Processing Ressources
  • 770TB of Disk Space
    • 30TB of Stage-Out Space
    • 250TB of Group Space (125 TB per group)
    • 200TB of Central Space
    • 170TB of Local Space
    • 120TB of User Space (~40 Users of 4 TB each).

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Topic revision: r14 - 2012-04-12 - SergioNovaes
 

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