https://www.nas.nasa.gov/hecc/support/kb/news/ https://www.nas.nasa.gov/hecc/support/kb/news/urgent-suspendresume-for-athena-nov-13-from-12-1-pm-(pt)_816.html To address some performance issues we're seeing on Athena, there will be a brief suspend/resume for running jobs Friday, November 13 from 12:00 to 1:00 p.m. (Pacific). During this time Athena users may experience some hanging on the filesystems. ... Thu, 12 Nov 2026 15:45:26 -0800 News https://www.nas.nasa.gov/hecc/support/kb/news/new-athena-nodes-now-available_814.html 512 AMD Turin nodes added to the Athena supercomputer are now available to all users. This expansion brings the total count of nodes in the system to 1,536 and increases its theoretical computing power to over 30 petaflops, making Athena the... Mon, 09 Nov 2026 10:57:50 -0800 News https://www.nas.nasa.gov/hecc/support/kb/news/action-required-migrate-unused-data-from-nobackup-filesystems_813.html Usage on the /nobackup filesystems are beginning to reach levels where we will start to see performance degradation. Please clean up your data by migrating unneeded or unused files for your current jobs to Lou for long-term storage. We encourage... Mon, 02 Nov 2026 09:36:50 -0800 News https://www.nas.nasa.gov/hecc/support/kb/news/upcoming-monthly-split-patching-nov-3-5_812.html To facilitate patching, the systems at NAS will undergo maintenance Tuesday, November 3 and Thursday, November 5 according to the following schedule: November 3, 7:00 a.m. to 4:00 p.m. (Pacific) Jobs on Aitken, Electra, and the LDANs will be... Wed, 28 Oct 2026 11:41:44 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/new-cabeus-grace-hopper-nodes-now-available_811.html 188 NVIDIA GH200 Grace Hopper nodes added to the Cabeus supercomputer last month are now available to all users. This expansion brings the total count of Grace Hopper nodes in the system to 538, increasing the system's theoretical computing power... Tue, 13 Oct 2026 09:21:13 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/update-downtime-for-cabeus-grace-hopper-nodes-oct-30_810.html UPDATE: The original announcement had this work scheduled for Thursday, October 22. The downtime has been moved to Friday, October 30 and the text below has been updated to reflect this change. In order to integrate new hardware into the... Tue, 13 Oct 2026 09:17:45 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/monthly-split-patching-schedule-sept-29-and-oct-1_809.html To facilitate patching, the systems at NAS will undergo maintenance Tuesday, September 29 and Thursday, October 1 according to the following schedule: September 29, 7:00 a.m. to 4:00 p.m. (Pacific) Jobs on Aitken, Electra, and the LDANs will... Thu, 17 Sep 2026 10:25:22 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/urgent-cabeus-grace-hopper-downtime-sept-17_808.html To facilitate the integration of 188 new Grace Hopper nodes into the Cabeus supercomputer, the GH200 nodes will go into downtime September 17 from 9:00 a.m. to 3:00 p.m. (Pacific). Jobs running on these nodes will be suspended at the start of the... Mon, 14 Sep 2026 10:22:38 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/athena-downtimes-over-the-last-two-weeks-of-september-to-integrate-new-hardware_807.html Two new racks of compute nodes are being added into the Athena supercomputer over the next few weeks, which will require partial and complete downtimes to fully integrate into the existing system: September 22-24: A partial outage will take... Fri, 04 Sep 2026 15:40:40 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/urgent-downtime-for-nobackupp17-sept-3_806.html To fix a known issue occurring on /nobackupp17 causing intermittent availability problems, we will be performing software upgrades to the filesystem on September 3 from 8:00 a.m. to 12:00 p.m. (Pacific) during the scheduled Athena, Endeavour, and... Thu, 27 Aug 2026 17:05:25 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/downtime-for-split-patching-sept-1-and-3_805.html To facilitate patching, the systems at NAS will undergo maintenance Tuesday, September 1 and Thursday, September 3 according to the following schedule: September 1, 7:00 a.m. to 4:00 p.m. (Pacific) Jobs on Aitken, Electra, and the LDANs will... Mon, 24 Aug 2026 11:19:43 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/cabeus-skylake-and-cascade-lake-v100-nodes-retiring-aug-24_804.html On August 24, 2026, we will be decommissioning the older Cascade Lake/V100 and Skylake/V100 nodes from our Cabeus supercomputer. Please make sure any jobs you currently have running on these nodes will complete before they are turned off. We... Wed, 19 Aug 2026 11:34:50 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/network-maintenance-aug-22-may-impact-nas-websites_803.html On Saturday, August 22 between 10:00 a.m. and 2:00 p.m. (Pacific), we will be performing updates to our network that may cause some connection issues when trying to view the NAS website, including the Knowledge Base. Tools like myNAS will still... Mon, 17 Aug 2026 17:05:30 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/july-28-30-system-downtimes-for-monthly-patching_800.html To facilitate patching, the systems at NAS will be unavailable Tuesday, July 28 and Thursday, July 30 according to the following schedule: July 28, 7:00 a.m. to 4:00 p.m. (Pacific) Jobs on Aitken, Electra, and the LDANs will be suspended at... Mon, 20 Jul 2026 14:54:16 -0700 News https://www.nas.nasa.gov/hecc/support/kb/news/requests-for-computing-time-for-the-2027-operational-year-due-july-20_798.html All NASA mission directorates are currently gathering requests for high-end computing time on resources at the NASA Advanced Supercomputing (NAS) facility for awards to begin October 1, 2026. The deadline for submitting requests is July 20, 2026. ... Mon, 22 Jun 2026 21:02:48 -0700 News