The Daily Bulletin

An afternoon workshop at NCAR’s Mesa Lab in Boulder on Wednesday, September 9, will include a presentation on some of the newest capabilities of Allinea’s performance and debugging tools followed by time for hands-on assistance from an Allinea engineer and CISL’s consulting staff.

The 1 p.m. presentation will last about an hour and will be webcast for those who are not able to attend in person. The class will be in the VisLab, which is Mesa Lab Room 4. Space is limited, so please register only if you are certain you can attend. You can register at one of these links: 

The Oklahoma Supercomputing Symposium 2015 will be held Wednesday, Sept. 23, on the University of Oklahoma Norman campus. The symposium introduces researchers, teachers and students to a variety of topics related to high-performance computing.

In 2014, 271 participants attended from 28 academic institutions in eight states, 29 private companies, nine government agencies, and four non-governmental organizations.

The all-day event is free, as are a reception and poster session the evening before. It offers a great opportunity to introduce grad students, undergrads, and community college, career tech, and high school students to conferences. See the symposium site for details.

The University of Colorado Computational Science and Engineering Meetup Group will learn about data management best practices in a meeting at 11:30 a.m. Thursday, September 3. See the Meetup Group for details.

The next deadline for university researchers to request large‐scale Yellowstone allocations is Monday, September 14, 2015.

As announced previously, we are introducing a new allocation request and review system to help us improve our processes. The new online submission forms will be available Tuesday, August 25. Submission instructions are otherwise unchanged and can be found on this CISL HPC Allocations Panel (CHAP) page.

 CISL accepts requests from university researchers for large‐scale allocations every six months. Large allocations on Yellowstone are those for more than 200,000 core‐hours.

This fall, CISL has 87 million core-hours available to allocate to the university community. As context while you prepare your requests, in April 2015 the panel recommended 43 allocations totaling 85.5 million core-hours. The average award was just under 2 million core-hours and the largest award was for 8.1 million core-hours.

Please contact cislhelp@ucar.edu if you have any questions about the opportunity.

High Performance Storage System (HPSS) users have until September 30 to prevent the permanent deletion of any abandoned files that they want to keep.

CISL has permitted a considerable grace period with respect to deletion since the transition to HPSS as we have worked to refine the processes and communication about orphaned files. Starting September 30, CISL will continue to follow the published Use and storage policies and remove abandoned files quarterly to ensure the most efficient use of the system.

HPSS files are considered orphaned when they are no longer associated with an active user and project. Files are sometimes orphaned when a project expires or is otherwise closed, and sometimes when a user leaves or is removed from a project.

Files become abandoned eight months after they were orphaned and the user has received four notifications without resolving the situation. Four months after becoming abandoned, CISL policy permits us to delete those files.

To see if you have orphaned files in HPSS, check the table on this documentation page or log into Yellowstone and run the myorphans command. You can delete orphaned files yourself if you no longer want them, or change their project code to one that is active. Contact cislhelp@ucar.edu if you have large numbers of files to update or want to consider other options for preserving the files.