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News
Update: Pleiades Interruption on December 6
06 Dec, 2021
A facility issue occurred on Monday, December 6 relating to one of the chillers that is used to cool the NASA Advanced Supercomputing facility. Since the facility needs at least two running chillers to cool Pleiades, this outage caused PBS...
Aitken Expanded with 512 New AMD Rome Nodes
23 Nov, 2021
Aitken has been expanded with four new racks containing 512 AMD EPYC "Rome" nodes, and the nodes are now available for running PBS jobs. With this latest expansion, Aitken contains a total of 1,536 Rome nodes, in addition to 1,152 Intel Xeon...
Reminder: Nov. 9 - User Training Webinar, "AMD Rome EPYC Architecture Tutorial"
08 Nov, 2021
You are invited to join a webinar offered by AMD engineers on the AMD EPYC Rome architecture on Tuesday, November 9 from 9:00 a.m. to 12:00 p.m. (Pacific Time), including a short break. This webinar will provide a tutorial on the newest hardware...
Dynamic PFL File Striping on /nobackupp17, 18, 19
01 Nov, 2021
Please note that the new /nobackupp17, 18, and 19 filesystems use Progressive File Layout (PFL) to dynamically stripe files to make effective use of solid state disks; therefore, you should not set custom stripe size or stripe counts on them. For...
Reminder: Transition from SLES Operating System to TOSS Is in Progress
28 Oct, 2021
Two Pleiades front ends, pfe26 and pfe27, have been transitioned to the Red Hat Enterprise Linux-based Tri-Lab Operating System Stack (TOSS) and are now available for testing. Please report any issues to support@nas.nasa.gov. As part the...
Nov. 2: Suspend/Resume for Pleiades, Electra, Aitken, Endeavour, and Dedicated Time for Lou
26 Oct, 2021
There will be a suspend/resume for Pleiades, Electra, Aitken, and Endeavour, and dedicated time for Lou, on Tuesday, November 2, from 10:00 a.m. to 11:59 p.m. (Pacific Time) to facilitate system patching. The following services will be affected: ...
Update on Oct. 13 Suspend/Resume and Dedicated Time
13 Oct, 2021
Due to an administrative error during the suspension of PBS jobs for Pleiades, Electra, and Aitken Cascade Lake nodes, most suspended jobs could not be resumed. Jobs that could be re-queued were prioritized to start again as soon as possible....
Hyperion Research Invites Submissions for HPC Innovation Excellence Awards
06 Oct, 2021
Hyperion Research and the HPC User Forum Steering Committee announced that they are now accepting submissions for the 18th round of the HPC Innovation Excellence Awards. We encourage you to submit your achievements enabled by NASA’s HPC resources. ...
TOSS Transition for Pleiades front ends pfe27, pfe 28 on October 4
29 Sep, 2021
As part of the ongoing transition from the SUSE Linux Enterprise Server (SLES 12 and 15) operating system environment to the Red Hat Enterprise Linux-based Tri-Lab Operating System Stack (TOSS 3), next week we will be transitioning the Pleiades...
Important Reminder: Testing Period for TOSS Operating System is Underway
27 Sep, 2021
It is important that all users start testing and migrating now from the SUSE Linux Enterprise Server (SLES 12 and 15) operating system environment to the Red Hat Enterprise Linux-based Tri-Lab Operating System Stack (TOSS 3) to ensure your...
Training Materials for "2021 NAS Data Science Webinar" Now Available
17 Sep, 2021
Training materials are now available for the webinar "2021 NAS Data Science Webinar," which was held on Wednesday, September 15, 2021. You can download a PDF of the slides presented, and follow along with the recorded audio session, on the HECC...
Testing Period for TOSS Operating System Migration
16 Sep, 2021
As announced in our August 10 notification, a major transition of the operating system for Pleiades, Electra and Aitken nodes from SUSE Linux Enterprise Server (SLES) to the Red Hat Enterprise Linux (RHEL)-based Tri-Lab Operating System Stack...
Downtime for /nobackupp17 Completed
15 Sep, 2021
The /nobackupp17 filesystem will be unavailable tomorrow, September 16 from 8:00 a.m. to 12:00 p.m. (Pacific Time) in order to resolve hardware issues. To accommodate the downtime, there will be a suspend/resume of PBS jobs that read to or write...
User Training Webinar, "NAS Data Science Overview" on Sept. 15
13 Sep, 2021
The 2021 NAS Data Science Webinar will be held on Wednesday, September 15, 2019, at 10:00 a.m. (Pacific Time. This webinar will provide an overview of Machine Learning software stacks provided by NAS and some of our latest tools and utilities...
Sept 8-9: Secure Front End Patching
01 Sep, 2021
The secure front ends (SFEs) will be placed in dedicated time for software patching on Wednesday, September 8 and Thursday September 9, according to the schedule below. sfe6 and sfe8: Wednesday, September 8, 7:00-7:30 p.m. (Pacific Time) sfe7...
Sept. 1: Suspend/Resume for Pleiades, Electra, Aitken, Endeavour, and Dedicated Time for Lou
27 Aug, 2021
There will be a suspend/resume for Pleiades, Electra, Aitken, and Endeavour, and dedicated time for Lou, on Wednesday, September 1, from 10:00 a.m. to 11:59 p.m. (Pacific Time) to facilitate system patching. The following services will be...
Transition to Red Hat Enterprise Linux from SUSE Linux Enterprise Server Planned for Fall 2021
10 Aug, 2021
In the coming months, HECC systems including the Pleiades front-end systems (PFEs); Pleiades, Electra, and Aitken compute nodes (including Rome nodes); and GPUs will transition to Red Hat Enterprise Linux (RHEL) from SUSE Linux Enterprise Server...
Completed: Suspend/Resume for Pleiades, Electra, Endeavour, & Aitken Cascade Lake; Dedicated Time for Lou & Aitken Rome
06 Aug, 2021
Original notification: There will be a suspend/resume for Pleiades, Electra, Endeavour, and Aitken Cascade Lake nodes, and dedicated time for Lou and Aitken Rome nodes, on Thursday, August 5, from 10:00 a.m. to 11:59 p.m. (Pacific Time) to...
Update: PFEs and LFEs Available
26 Jul, 2021
The PFEs and LFEs have been rebooted and are now available. Original Message The Pleiades front ends (PFEs) and Lou front ends (LFEs) will be rebooted at 2:00 pm (Pacific Time) on Monday, July 26 for software patching. The front ends will be...
Requests for Computing Time for the 2022 Operational Year Due July 20
20 Jul, 2021
The Aeronautics Research Mission Directorate (ARMD), Human Exploration and Operations Mission Directorate (HEOMD), NASA Engineering and Safety Center (NESC), Science Mission Directorate (SMD), and Space Technology Mission Directorate (STMD) are...
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