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News
HECC to Break Ground on New Modular Supercomputing System
09 Nov, 2015
As part of NASA's vision for next-generation supercomputing technologies, HECC has initiated a pilot study for a prototype modular supercomputing system (MSS) designed to save millions& gallons of water per year. Site construction for the MSS,...
HECC Knowledge Base Enhanced with Easier Navigation, Improved Search
28 Aug, 2015
We are pleased to announce that we've recently updated the HECC Knowledge Base (KB) with enhancements to improve usability and help you find information more quickly. Changes include: Updated Browsing Menu Articles are now organized in a way...
Merope Augmented with 448 More Westmere Nodes
28 Aug, 2015
HECC engineers recently augmented Merope with 448 additional Westmere nodes that were repurposed from Pleiades, bringing the total number of Merope Westmere nodes to 1,152. The installation was preceded by the removal of all of Merope's Nehalem...
New MPT Default Version Is mpi-sgi/mpt.2.12r26
03 Aug, 2015
As of today, the default SGI MPT module mpi-sgi/mpt points to mpi-sgi/mpt.2.12r26. MPT version 2.12r26 includes multiple fixes for issues that were discovered with the previous default version, mpt.2.12r16. Users are strongly recommended to use...
Older Java Versions Were Removed on July 28
23 Jul, 2015
Original article: Oracle has released a new version of Java to address some security vulnerabilities, and no longer releases patches for the 1.7 versions. Therefore, older versions of Java must be removed from NAS systems. The latest versions...
Older Intel Compilers Were Removed on July 27
13 Jul, 2015
Original article: The following compiler modules will be removed from Pleiades, Endeavour, and Merope on Monday, July 27, 2015: comp/intel/11.0.069_64 comp/intel/11.0.074_64 comp/intel/11.0.081_64 comp/intel/11.0.083_64 comp-intel/11.1.038...
Nehalem Nodes Removed from Merope
08 Jul, 2015
NAS systems engineers have removed the Nehalem nodes from Merope in preparation for adding more Westmere nodes, which are being repurposed from Pleiades. If you have any questions or concerns, please contact the NAS Control Room at (800)...
Update: Older MPT Modules Removed from Pleiades
08 Jul, 2015
The following MPT modules have been removed from Pleiades: test/mpt-2.13-10Apr15 test/mpt-2.13-8Apr15 test/mpt-2.13-6Apr15 test/mpt-2.13-24Mar15 test/mpt-2.12-23Jan15 test/mpt-2.12-22Jan15 test/mpt.2.12a83 test/mpt.2.12a39 ...
New Version of Shift Transfer Tool Now Available
10 Jun, 2015
A newly installed version of the Shift tool provides several optimizations, new features, and bug fixes. For example: Source directory traversal during initialization is now performed in the background and can be parallelized, stopped, and...
New ASTRO Share on Pleiades for Astrophysics
08 Jun, 2015
Beginning June 9, 2015, or when NAS systems return to production, all Pleiades jobs that are submitted under Astrophysics GIDs will be run in the new ASTRO share of Pleiades. The list of affected Astrophysics GIDs can be found here. If you believe...
Merope Returned to Full Production
29 Apr, 2015
NAS teams have resolved several performance and stability issues with the Merope supercomputer, and the system has been returned to full production. It is now available to all users. Merope has also been been enhanced with 448 Nehalem nodes that...
Attention SMD Users: New Output Format for acct_ytd Utility
26 Mar, 2015
For currently active Science Mission Directorate (SMD) projects on HECC systems, there are two different new operational period (NOP) start dates: May 1, 2014 and November 1, 2014. However, the acct_ytd utility assumed a May 1 start date for...
NVIDIA K40 GPU-Enhanced Nodes Added to Pleiades
17 Mar, 2015
Pleiades has been expanded with 64 new Sandy Bridge nodes enhanced with NVIDIA Tesla K40 graphics processing units (GPUs). Each GPU-enhanced Sandy Bridge node contains 64 GB of memory — twice the amount of memory as a standard Pleiades Sandy Bridge...
Status of HECC Lustre Filesystems
06 Mar, 2015
Dear NAS Users, Here is some information on the status of the HECC Lustre filesystems. The problems that we have been having with the filesystems for the past couple of months are related to the removal of older Westmere racks and the...
Update: /nobackupp6 is Available
05 Mar, 2015
Update: The work on the /nobackupp6 filesystem is completed, and the filesystem is available. We apologize for the inconvenience. If you have any questions, please contact the Control Room at (800) 331-8737, (650) 604-4444, or support@nas.nasa.gov.
Status of DMZ File Servers
04 Mar, 2015
Thanks to everyone who took the time to reply to our request for feedback on the DMZ file servers. Based on your responses, we brought dmzfs1 back up using repurposed hardware; there may be other hardware changes to dmzfs1 in the near future. The...
NAS Firewall Policy Change Effective March 5
25 Feb, 2015
The NAS firewall policy change to block non-registered ports into the NAS network has been postponed for one week in order to ensure users have sufficient time to verify that the new port range is allowed through their sites' firewalls. The change...
Update: Pleiades Available
21 Feb, 2015
Update: The issues have been resolved, and Pleiades is now available. We apologize for any inconvenience. If you have questions or concerns, please contact the Control Room at (800) 331-8737, (650) 604-4444, or support@nas.nasa.gov.
dmzfs1 Up and Running
12 Feb, 2015
The host dmzfs1 is back up and available for use. Please note that bbftp is not available, just scp and sftp. If you have any questions, please contact the Control Room at (800) 331-8737, (650) 604-4444, or by email at...
Pleiades Augmentation Complete
20 Jan, 2015
HECC engineers have completed the latest augmentation to Pleiades with the integration of 14 new SGI Haswell compute racks. The expansion brings the total number of Haswell racks to 29, and increases Pleiades' theoretical peak performance from 4.49...
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