The Daily Bulletin

The regular registration deadline is coming up May 31 for PEARC17, the Practice & Experience in Advanced Research Computing conference July 9-13 in New Orleans. It’s also the deadline for locking in the conference hotel room rate. (These deadlines will not be extended.) Late registration fees take effect June 1.

PEARC17 will include a robust schedule of tutorials, a special student program, and a technical program that includes four paper tracks, posters, a Visualization Showcase, and Birds of a Feather (BoF) sessions. Keynote speakers will be Paula Stephan, Georgia State University professor of economics and research associate with the National Bureau of Economic Research, and Paul Morin, founder and director of the Polar Geospatial Center, an NSF science and logistics support center at the University of Minnesota.

See the PEARC17 website for details.

The CISL User Services Section will present an in-person and online tutorial at 1:30 p.m. MDT on Thursday, May 25, at the NCAR Mesa Lab in Boulder to help users prepare to work with the new Cheyenne HPC system. The 60-minute tutorial will cover typical workflows in the Cheyenne environment as well as performance and operational differences between the Yellowstone and Cheyenne systems.

Topics to be covered include:

  • Technical specifications for Cheyenne and the expanded GLADE file systems

  • The Cheyenne computing environment

  • Accessing software, including compilers and MPI libraries

  • Submitting batch jobs using the PBS scheduler

The tutorial will conclude with a Q&A session, so please bring other general questions and concerns not covered above. Register to attend in person—at the VisLab in NCAR’s Mesa Lab (ML4) in Boulder—or via webcast by selecting a link below:

Yellowstone users have just a few weeks left to copy files that they want to keep from /glade/scratch_old to /glade/scratch. The old space is available in read-only mode until June 1, at which point it will be removed so it can be repurposed.

Users who work with numerous small files may see a difference in how much space their files occupy on the new system because of its larger block size and sub-block allocations. See this Best practice section of our GLADE documentation for guidance.

CISL will resume enforcing the 45-day /glade/scratch purge policy on June 1. The policy was suspended during the recent transition to the new, larger GLADE scratch system. Users’ files that are not accessed (for example: modified, read, or copied) within the 45 days following June 1 will be deleted automatically on July 15.

Also on June 1, as announced previously, the read-only /glade/scratch_old file space will be removed so it can be repurposed. Yellowstone users who have not already done so should copy any scratch files that they want to keep from /glade/scratch_old to /glade/scratch before that date.

Please see GLADE File Spaces for more information about using the GLADE centralized file service.