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Hardware and Architecture

Hardware for the HLRS bwGRiD Cluster


Further bwGrid Hardware installations are located at Freiburg, Heidelberg, Karlsruhe, Mannheim, Tübingen und Ulm (Cooperation with Konstanz)


The HLRS DGRID/BW-Grid Cluster platform consists of several frontend nodes for interactive access (for access details see Settings) and several compute nodes for execution of parallel programs.

Two different compute node CPU architecture types are installed:

  • IBM cell (out of production)
  • Intel Xeon 5150 (woodcrest, out of production)
  • Intel Xeon E5440 (Harpertown)
  • Intel Xeon 5472 with Nvidia Quadro FX 5800 Graphics card with 4 GB Memory and 240 CUDA GPU Cores.


  • Operating System: ScientificLinux 5.5 on Intel based nodes
  • Operating System: Fedora Core8 on cell based nodes
  • Batchsystem: Torque/Moab
  • node-node interconnect: Infiniband + GigE

Short overview of installed nodes
Function Name CPU Sockets Memory Disk PBS properties Interconnect
Compute Nodes n010201 - n110414 (498 nodes) Intel Xeon E5440 2.83 GHz 2 16 GB - bwgrid GigE/Infiniband
Visualization Nodes n120101 - n120108 (8 nodes) Intel Xeon 5472 3.00 GHz 2 8 GB RAM - bwvis GigE/Infiniband
Login Node frbw / frwab Intel Xeon E5440 2.83 GHz 2 18 GB 900 GB - GigE/Infiniband
I/O Server data1 / data2 Intel Xeon 5130 2.0 GHz 16 GB 100 TB - GigE/Infiniband
Infrastructure (NTP,PBS,DNS,DHCP,FTP,GT4,...) - GigE
Workspace system 4x 18GB 60 TB - GigE/Infiniband