Daily Bulletin Archive

February 18, 2020

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

February 12, 2020

Researchers who need help visualizing data to demonstrate the results of their scientific computing can request expert assistance and collaboration from CISL. This service is available to researchers who want help using specialized applications on data analysis and visualization resources that CISL manages.

CISL visualization staff have particular expertise in CISL-developed software such as VAPOR and NCL but are open to assisting with other applications. They have helped science teams produce numerous visualizations for conferences, publications, and scientific journals as well as science and broadcast news programs.

See Advanced visualization support to learn how to submit a request, what criteria must be met, and other details.

Hurricane Odile simulation, CISL Visualization Gallery
February 10, 2020

The Cheyenne cluster will be unavailable to users in late February to allow CISL staff and HPE engineers to perform critical infrastructure maintenance, repairs, and system software updates. The maintenance period will begin early Tuesday morning, February 25, and the system is expected to be returned to service no later than Saturday evening, February 29. This will be Cheyenne’s last scheduled outage until the third quarter of this year.

The Casper cluster, GLADE and Campaign Storage file systems, data-access nodes, and HPSS will remain available throughout the week except for approximately four hours beginning at 8 p.m. MST on February 25 while a key network infrastructure component is rebooted. Watch for more details and updates in the CISL Daily Bulletin.

February 10, 2020

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

February 3, 2020

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

January 31, 2020

Transferring data quickly and reliably is essential to efficient workflows, storing files, and sharing them with colleagues. That’s why CISL recommends using Globus for most of these tasks. It facilitates fast, robust, simple data movement across storage systems. To help the user community take advantage of the service, Brian Vanderwende of the CISL Consulting Services Group will present a one-hour tutorial at 9 a.m. Thursday, February 20, at the NCAR Mesa Lab in Boulder.

The tutorial will cover the following topics:

  • Using the NCAR endpoints to move data between NCAR systems, external HPC platforms, and personal workstations

  • Introduction to the Globus web and command-line interfaces

  • Integrating Globus into users’ workflows using long-lived certificates and our gci utility

  • Sharing data with external collaborators via the NCAR Data Sharing Service

Participants can attend either in-person or online. Register using one of these links:

January 31, 2020

The National Science Foundation has announced it is seeking candidates for these program management positions in the Division of Atmospheric and Geospace Sciences (AGS).

Program director in AGS NCAR and Facilities Section

NSF seeks qualified candidates for an AGS Interdisciplinary Program Director position. Working closely with program officers in AGS and throughout NSF, the incumbent will participate in the programmatic oversight, management, planning, and evaluation associated with the cooperative agreement under which NCAR is managed and operated. The incumbent will also perform program management activities associated with the section’s other facilities, education, and cross-cutting programs, with a particular emphasis on cyberinfrastructure programs. The deadline is March 23, 2020; details on how to apply can be found here.

IPA rotator in AGS Atmosphere Section

NSF also is looking for an Intergovernmental Personnel Act (IPA) rotator in the Atmosphere Section who, in addition to programmatic responsibilities in the Physical and Dynamic Meteorology program, also manages division-wide education-related efforts. If you are interested in this IPA opportunity, please respond to this Dear Colleague Letter (DCL). As the DCL states, the application needs to be submitted to the Section Head; currently Mr. Bernard Grant is Acting Section Head for the Atmosphere Section; his email address is bgrant@nsf.gov.

January 30, 2020

Users who are migrating files from the High-Performance Storage System (HPSS) to other storage systems have a new tool for comparing files after they are transferred to a GLADE file space or the NCAR Campaign Storage System. The new hpss_verify command confirms the existence of the files in the destination directory, compares the file sizes, and reports any discrepancies.

As documented in this expanded documentation on checking transfer results before deleting files from HPSS, hpss_verify does not do byte-for-byte comparison, as command md5sum or the directory version of diff do.

For additional information about hpss_verify – as well as why and how to migrate your data from HPSS – see Migrating files from HPSS.

January 30, 2020

CISL is now accepting large-scale allocation requests from university-based researchers for the 5.34-petaflops Cheyenne supercomputer and the Casper data analysis and visualization cluster. Submissions are due March 23. Researchers are encouraged to review these allocation instructions before preparing their requests.

In addition to requesting computing allocations, university projects should request long-term space on the NCAR Campaign Storage resource. Campaign Storage has no default minimum amount; users are asked to justify the amount requested. The CISL HPC Allocations Panel (CHAP) continues to closely scrutinize data management plans and storage requests, especially when proposals request a substantial portion of the storage capacity available to allocate.

At the spring meeting, CISL will allocate up to 270 million core-hours on Cheyenne, up to 2 PB of Campaign Storage space, and up to 200 TB of GLADE project space. Large allocations on Cheyenne are those requesting more than 400,000 core-hours. CISL accepts requests from university researchers for these large-scale allocations every six months. Please email us or call  303-497-2400 if you have any questions.

January 29, 2020

The Cheyenne cluster will be unavailable to users in late February to allow CISL staff and HPE engineers to perform critical infrastructure maintenance, repairs, and system software updates. The maintenance period will begin early Tuesday morning, February 25, and the system is expected to be returned to service no later than Saturday evening, February 29. This will be Cheyenne’s last scheduled outage until the 3rd quarter of this year.

The Casper cluster, GLADE and Campaign Storage file systems, data-access nodes, and HPSS will remain available throughout most of the week except for an approximately four-hour window beginning at 8 p.m. MST February 25, while NETS reboots a key component of their network infrastructure. Watch for more details and updates in the CISL Daily Bulletin.

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