Daily Bulletin Archive

Jun. 4, 2018

NCAR’s new Casper cluster, which is expected to go into production this summer, is a heterogeneous system of specialized data analysis and visualization resources and large-memory, multi-GPU nodes. Named for the city in Wyoming, Casper is the successor to Geyser and Caldera, which have been in service since 2012 and will be decommissioned by the end of 2018.

The new system, procured from PCPC Direct, Ltd., consists of a total of 24 Supermicro nodes featuring Intel Skylake processors. See the new Casper web page for additional details, and look for more information in the CISL Daily Bulletin in the coming weeks.

May. 29, 2018

No downtime: Cheyenne, GLADE, Geyser_Caldera and HPSS

May. 29, 2018

A new and larger work space is now available for GLADE. The new /glade2/work file space has a total capacity of 2 PB. The default quota for individual users 1 TB. Users can access the new space as /glade/work.

The older /glade/p/work file space (where users’ default quota is 512 GB) will become read-only within the next two months. The date will be announced soon. The /glade/p/work space will be retired by the end of 2018.

Users are encouraged to begin using the new space soon and move all of their active files and directories from the old space to their individual /glade/work directories at their earliest convenience.

Based on input from users, the new /glade/work spaces will remain unpurged. We apologize for the incorrect info in yesterday's Daily B item.

May. 25, 2018

The CISL User Services Section will present an in-person and online tutorial at 9:30 a.m. Friday, May 25, at the NCAR Mesa Lab in Boulder for new users of NCAR’s high-performance computing (HPC) systems. The 60-minute tutorial will cover basic usage and typical workflows for Cheyenne, Geyser, and Caldera.

Topics include:

  • The Cheyenne computing environment

  • Accessing software, including compilers and MPI libraries

  • Submitting batch jobs using the PBS scheduler

  • Using Slurm to schedule data analysis and visualization tasks

  • A quick look ahead to the new Casper system

Register to attend in person—at the VisLab in NCAR’s Mesa Lab (ML4) in Boulder—or via webcast by selecting a link below:


May. 25, 2018

CISL is asking for input from researchers in order to gauge their interest in Phase 6 of the Coupled Model Intercomparison Project (CMIP6) and planned use of CISL’s CMIP Analysis Platform.

NCAR data products are expected in mid-2018 and will be available to CMIP Analysis Platform users on the GLADE file system. As estimated time frames for availability of data from other modeling centers become known, CISL will publish that information for the community to help researchers make their plans. When other data sets are available, researchers who use the CMIP Analysis Platform will be able to submit requests to have the data sets they need added to GLADE.

Researchers who are or may be planning to use CMIP6 data are asked to respond to this survey by Friday, May 25, and are encouraged to share the survey with others.

May. 24, 2018

Cheyenne system administrators will perform preventative maintenance procedures on the PBS job scheduler Thursday, May 24, beginning at noon MDT. The maintenance is expected to take less than one hour to complete.

Most PBS commands will not work during the maintenance outage, including qstat and qsub, and new job submissions will not be possible.

No batch jobs are expected to be lost as a result of the maintenance. Jobs that are executing when the maintenance begins will continue to run without interruption. Jobs that are queued for execution or in a hold state will remain in those states until PBS is returned to service. Access to Cheyenne’s login nodes will not be interrupted.

Users will be notified when PBS is returned to service.

May. 21, 2018

No downtime: Cheyenne, GLADE, Geyser_Caldera and HPSS

May. 17, 2018

Funders and publishers increasingly require scientists to make their data open, and an AGU webinar at noon MDT on Thursday, May 17, can help you meet these evolving requirements. Shelley Stall, Director of Data Programs at AGU, will present “Data Management Fundamentals” to explore data management resources and proven strategies for making research more discoverable and understandable. See the AGU announcement to register.

May. 15, 2018

HPSS Disaster Recovery downtime: Tuesday, May 16th 7:30 a.m. - 11:30 a.m.

No downtime: Cheyenne, GLADE, Geyser_Caldera

May. 11, 2018

Video and slides are now available here from a recent CISL Seminar Series presentation by Dave Hart, NCAR/CISL User Services Manager, about how new storage systems and practices are being put into place this year to reflect the new reality facing users of CISL's petascale computational environments. With input from users and taking into account recent changes in the storage technology landscape, CISL has begun to transform its storage offerings while working with users to help them understand the trade-offs that they now face and will continue to face.

More information and training support will be coming over the next several weeks and months.