Daily Bulletin Archive

November 25, 2019

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

November 22, 2019

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

November 19, 2019

Video and slides from the November 14 “Introduction to Cheyenne for New Users” tutorial are now available here in the CISL training library. The 50-minute tutorial – presented by Sidd Ghosh of the CISL Consulting Services Group – covers basic usage and typical user workflows.

Topics covered include:

  • The Cheyenne computing environment

  • Accessing software, including compilers and MPI libraries

  • Submitting batch jobs using the PBS scheduler

November 15, 2019

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

November 14, 2019

The CISL User Services Section will present an in-person and online tutorial at 9 a.m. MST on Wednesday, December 4, for users who have data holdings on tape in the High Performance Storage System (HPSS). The tape archive will become read-only on January 20, 2020, and it will reach end of life and be decommissioned in 2021. Users are advised to begin evacuating their holdings from HPSS immediately.

A 30-minute presentation by Brian Vanderwende of the CISL Consulting Services Group will provide attendees with guidance and best practices for moving their files from HPSS. The presentation will be followed by additional time for answering questions and providing one-on-one guidance. Topics to be covered include:

  • Obtaining information about HPSS data holdings

  • Moving files to external storage platforms using Globus and Linux utilities

  • Moving files to Campaign Storage via the data-access nodes

Register to attend in person at NCAR’s Foothills Lab in Boulder (FL2-1001) or attend online by selecting one of these links:

November 14, 2019

The High Performance Storage System (HPSS) tape archive will become read-only for users on January 20, 2020, with exceptions only for curated collections such as the Research Data Archive. This follows the announcement in October that HPSS will reach its end of life and be decommissioned in 2021.

While writing HPSS files will not be possible as of January 20, users will still be able to perform most common meta-data operations on their HPSS holdings, including deleting, renaming, and moving files. Those who have not already done so should begin deleting files that are no longer needed and moving other data to alternative storage systems as soon as possible.

Recently published documentation – Migrating files from HPSS – describes recommended processes for identifying and organizing HPSS holdings, copying files that need to be preserved to another storage resource, and deleting files that are no longer needed. Additional CISL Daily Bulletin announcements will follow as new tools, training, and expanded documentation become available to support the data migration. In the meantime, please contact CISL for advice on individual workflows, accessing data movers, and storage options.

November 8, 2019

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

November 8, 2019

NCAR’s next supercomputer is slated to enter production early in 2022. The procurement process is moving right along, but this next-generation HPC system doesn’t have a name! We need your help (by November 22) coming up with something suitable.

Our goal is to select a name that reflects the value of the computational services we provide in support of our users' work in Earth system science. Our critically important services are among the core activities that enable NCAR to provide knowledge and information for the benefit of society, so it's worth giving some thought to what we will call this new system.

The best name will be easy to spell and pronounce, align with our mission, and inspire some strong visuals/graphics that can become the skins of the computer and even a logo we can use more generally. Suggestions should not conflict with other supercomputer names (e.g., Aurora at ANL, Frontier at ORNL), so you may want to check with Google that they aren't already being used somewhere else.

Submissions are due by Friday, November 22. You can suggest as many as three names. Please use the following form to submit them:

What should we call our next supercomputer?

We look forward to seeing what you come up with. 

November 6, 2019

CISL has released a significant update to the NCAR Package Library (NPL) interface to improve tracking and integration with personal NPL clones. In the new version, you no longer need to have a Python module loaded to access ncar_pylib – simply loading the ncarenv module will give you access to that script. If you then load a Python module, the NPL versions included in the module will become accessible.

Additionally, ncar_pylib can track and activate any new personal clones you create. These clones will be listed alongside any system NPL versions you can access. The ncar_pylib script will record which system you used to create the clone (Cheyenne or Casper) and will only allow you to load a clone on the proper system in order to avoid OS-compatibility errors. See the updated Python documentation page for more information.

Addition: The documentation page has now been updated to include a new section addressing the use of ncar_pylib in batch jobs.

November 5, 2019

The CISL User Services Section will present an online tutorial at 11 a.m. MST on Thursday, November 14, for new users of NCAR’s Cheyenne high-performance computing system. The 60-minute tutorial – presented by Sidd Ghosh of the CISL Consulting Services Group – will cover basic usage and typical user workflows and include time for users to ask questions. Topics will include:

  • The Cheyenne computing environment

  • Accessing software, including compilers and MPI libraries

  • Submitting batch jobs using the PBS scheduler

Please use this link to register for the tutorial: Introduction to Cheyenne.

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