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CRAY XE6 Hardware and Architecture: Difference between revisions

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* compute nodes
* compute nodes
** are only available for user using the [[CRAY_XE6_Using_the_Batch_System| batch system]] and the Application Level Placement Scheduler (ALPS), see [https://fs.hlrs.de/projects/craydoc/docs/books/S-2496-31/html-S-2496-31/cnl_apps.html#section-5gdyxf87-oswald running applications].
** are only available for user using the [[CRAY_XE6_Using_the_Batch_System| batch system]] and the Application Level Placement Scheduler (ALPS), see [https://fs.hlrs.de/projects/craydoc/docs/books/S-2496-31/html-S-2496-31/cnl_apps.html#section-5gdyxf87-oswald running applications].
=== Features ===
* Cray Linux Environment (CLE) 3.1 operating system
* Operating System is based on SUSE Linux Enterprise Server (SLES) 11
* Cray Gemini interconnection network
* Cluster Compatibility Mode (CCM) functionality enables cluster-based independent software vendor (ISV) applications to run without modification on Cray systems.
* Batch System: torque, moab

Revision as of 16:37, 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


Features

  • Cray Linux Environment (CLE) 3.1 operating system
  • Operating System is based on SUSE Linux Enterprise Server (SLES) 11
  • Cray Gemini interconnection network
  • Cluster Compatibility Mode (CCM) functionality enables cluster-based independent software vendor (ISV) applications to run without modification on Cray systems.
  • Batch System: torque, moab