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CRAY XE6 Hardware and Architecture: Difference between revisions

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* service nodes are classified in:
* service nodes are classified in:
** login nodes (xe601.hww.de) for users to [[CRAY_XE6_access| access]] the system
** login nodes (xe601.hww.de) for users to [[CRAY_XE6_access| access]] the system
** boot nodes which provides the OS for all other nodes
** boot nodes which provides the OS for all other nodes, licenses,...
** network nodes which provides e.g. external network connections for the compute nodes  
** network nodes which provides e.g. external network connections for the compute nodes  
** Cray Data Virtualization Service (DVS): is an I/O forwarding service that can parallelize the I/O transactions of an underlying POSIX-compliant file system.
** Cray Data Virtualization Service (DVS): is an I/O forwarding service that can parallelize the I/O transactions of an underlying POSIX-compliant file system.

Revision as of 16:06, 15 December 2010

Hardware of Installation step 0

  • 84 compute nodes / 1344 cores
    • dual socket G34
      • Magny-Cours @ 2 GHz (Opteron(tm) Processor 6128)
      • 512KB L2 Cache, 12MB L3 Cache
      • HyperTransport HT3
      • 8 cores
    • 32GB memory
  • 12 service nodes
    • 6-Core AMD Opteron(tm) Processor 23 (D0)
      • 2.2GHz
      • 16GB memory
  • High Speed Network CRAY Gemini
  • LSI FibreChannel RAID System (SATA)
    • Parallel Filesystem
      • Lustre version 1.8.2
      • capacity 11 TB
      • 3 OST's, 1 MDS, Network Gemini
  • System Management Workstation (SMW)

Architecture

  • System Management Workstation (SMW)
    • system administrator's console for managing a Cray system like monitoring, installing/upgrading software, controls the hardware, starting and stopping the XE6 system.
  • service nodes are classified in:
    • login nodes (xe601.hww.de) for users to access the system
    • boot nodes which provides the OS for all other nodes, licenses,...
    • network nodes which provides e.g. external network connections for the compute nodes
    • Cray Data Virtualization Service (DVS): is an I/O forwarding service that can parallelize the I/O transactions of an underlying POSIX-compliant file system.
    • sdb node for services like ALPS, torque, moab, cray management services,...
    • I/O nodes for e.g. lustre
    • MOM (torque) nodes for placing user jobs of the batch system in to execution
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