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Available Hardware Resources

Describes available resources at NMASC and NAASC.

NMASC (nmpost)

The NMASC provides a processing cluster called the nmpost cluster to support CASA and AIPS execution, and a Lustre filesystem for a data storage.

 

Cluster

The nmpost cluster consists of 90 nodes, 30 of which are reserved for our VLASS project. The remaining 60 nodes are available for batch processing, 50 of which can also be used for interactive processing.  None of the nodes have local storage, instead each node has a 40Gb/s QDR Infiniband connection to the NMASC Lustre filesystem.  The cluster supports automatic EVLA pipeline processing, archive retrievals, batch processing requests and interactive processing sessions.

The operating system is Red Hat Enterprise Linux 6. The cluster scheduling software is Torque/Moab.

NodesCPUSocketsCores/SocketClockFLOPS/SocketRAMInterconnectQueues
nmpost{001..050} E5-2670 2 8 2.6GHz 166 DP GFlops 192GB 40Gb/s QDR Infiniband interactive, batch
nmpost{051..060} E5-2640v3 2 8 2.6GHz 332 DP GFlops 256GB 40Gb/s QDR Infiniband batch
nmpost{061..070} Gold 6136 2 12 3.0GHz 1,152 DP GFlops 512GB 40Gb/s QDR Infiniband vlass
nmpost{071..090} E5-2640v4 2 10 2.4GHz 384 DP GFlops 512GB 40Gb/s QDR Infiniband vlass

 

Lustre Filesystem

Lustre is a distributed parallel filesystem commonly used in HPC environments.  Each cluster node sees the same shared filesystem.  The NMASC Lustre filesystem is made up of ten storage servers each with four RAID arrays (40 total arrays) which are each 44TB in size.  The total storage volume is 1.8PB.  Individual cluster nodes can read and write to the Lustre filesystem in excess of 1GByte/sec.  The entire filesystem can sustain roughly 15GB/s aggregate I/O.

The Lustre filesystem appears as /lustre/aoc on all Lustre enabled client computers.

 

Public Workstations

The NMASC has nine workstations for local visitors.  The systems vary in processor, memory and storage since work is expected to be done mostly on the compute cluster, but all have 10Gb/s ethernet connections to the Lustre filesystem.  Instructions for reserving workstations can be found in the Computing section of the Visiting the DSOC web page.

 


 

NAASC (cvpost)

The NAASC provides a processing cluster called the cvpost cluster to support CASA execution, and a Lustre filesystem for a data storage.


Cluster

The cvpost cluster consists of 64 nodes, all of which are available to users for either batch or interactive processing. None of the nodes have local storage, instead each node has a 40Gb/s QDR Infiniband connection to the NAASC Lustre filesystem. The cluster supports automatic ALMA pipeline processing, archive retrievals, batch processing requests and interactive processing sessions.

NoesCPUSocketsCores/SocketClockFLOPS/SocketRAMInterconnectQueues
cvpost{001..003} E5-2670 2 8 2.6GHz 166 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost{004..009} E5-2640v3 2 8 2.6GHz 332 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost{010..014} E5-2670 2 8 2.6GHz 166 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost015 E5-2640v3 2 8 2.6GHz 332 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost{016..017} E5-2670 2 8 2.6GHz 166 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost{018..028} E5-2640v3 2 8 2.6GHz 332 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost{029..047} E5-2670 2 8 2.6GHz 166 DP GFlops 256GB 40Gb/s QDR Infiniband interactive, batch
cvpost{048..064} ES-2670 2 8 2.6GHz 166 DP GFlops 256GB 40Gb/s QDR Infiniband batch

Lustre Filesystem

Lustre is a distributed parallel filesystem commonly used in HPC environments.  Each cluster node sees the same shared filesystem.  The NAASC Lustre filesystem is made up of four storage servers each with four RAID arrays (16 total arrays) which are each 64TB in size.  The total storage volume is 1.1PB.  Individual nodes can read and write to the Lustre filesystem in excess of 1GByte/sec, the entire filesystem can sustain roughly 10GB/s aggregate I/O.

The Lustre filesystem appears as /lustre/naasc on all Lustre enabled client computers.


Public Workstations

The NAASC has five workstations for local visitors.  The systems have 8 x Intel E5-1660 Xeon 3.0 GHz processors, 32 GB RAM, 3 TB local disk space (accessible as /home/<hostname>_1 and /home/<hostname>_2) and a 10Gb/s ethernet connection to the Lustre filesystem.   Instructions for reserving workstations can be found in the BOS system (used to make your visitor reservation at the NAASC).

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