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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
- dual socket G34
- 12 service nodes
- 6-Core AMD Opteron(tm) Processor 23 (D0)
- 2.2GHz
- 16GB memory
- 6-Core AMD Opteron(tm) Processor 23 (D0)
- 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
- Parallel Filesystem
- 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
- compute nodes
- are only available for user using the batch system and the Application Level Placement Scheduler (ALPS), see 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