User News

Special Maintenance Friday, September 23, for Intrepid and Eureka

On Friday, September 23, Intrepid and Eureka will be offline for a special maintenance period, starting at 14:00 UTC, and ending at approximately 22:00 UTC.

During this time, no jobs will run on the system, scheduler commands (such as qsub and qstat) will be unavailable, and there may be disruptions in filesystem access and in network access to the login nodes. Please watch the "notify" lists for notice that the machines are again available for general use. Please send any comments or questions to support@alcf.anl.gov.

Intrepid Users: Move Your Data to New Directory

As part of the file-system restructuring plan, new directories have been created for each project under /intrepid-fs0. By December 1, 2011, please MOVE the data from your /intrepid-fs0/users directory to your new project directory. Please MOVE (do NOT copy) the data, as copying it will result in space shortages in the file system.

Switch to Challenger Means Procedural Changes for Users

Challenger (the ALCF's new rack of Blue Gene/P) will be online soon. Once Challenger is online, the prod-devel queue on Intrepid will be retired and jobs formerly run there will be run on Challenger. To help smooth the transition to Challenger, please continue to watch for additional information and training opportunities.

Register Now for "Getting Started" at the ALCF: October 4 & 5

The Getting Started workshop at the ALCF provides new users with key information on services and resources, technical details of the Blue Gene/P, as well as hands-on assistance in porting and tuning applications. ALCF computational scientists and performance engineers will provide presentations and guided hands-on exercises. Topics will include Blue Gene/P architecture, ALCF infrastructure, debugging on the Blue Gene, and visualization systems and services. To register or for additional information, go to the event website.

Showcase Your Visualization Movies in the Argonne Booth at SC11

The technical computing community's premier conference, SC11, will be held in Seattle, November 12-18. If you are interested in having your project's visualization movies featured, please contact Chel Heinzel for submission details at chel@alcf.anl.gov. Visualization submissions are due October 7. If you're in Seattle for SC, please stop by and see us at the Argonne booth.

Quantum Chemistry Featured in 9/29 ALCF User Call

This month's ALCF User Call will feature a technical discussion, "Aspects of Quantum Chemistry," given by Graham Fletcher, principle project specialist in computational science. All users are invited and encouraged to call in.

/home Intrepid File System Changes Bring Improvements

The November 28 switch to the new /home file system on Intrepid brings several improvements, including a faster file system with more space and more resiliency to failure. Beginning next week, we will begin a re-sync of the new /home file system from the current one in the background. Once synchronization is verified, we will switch over on November 28. The process should be invisible to users. See BG/P File Systems for more information.

Maintenance Monday: October 17

Routine maintenance kicks off at 9 a.m. CDT (14:00 UTC) on Monday, October 17, for Intrepid, Eureka, Surveyor and Gazooks. The systems will be unavailable during maintenance. Please watch the "notify" lists for projected and actual release times.

Environment Changes for Script Jobs Coming October 17 to Intrepid

An upcoming change to Cobalt will change the environment that script mode jobs on Intrepid receive. Script jobs will start up with the submitting user's non-interactive login environment at the time the job is started. Once the change is live, users should check that the environment variables in their script-mode jobs are set to expected values. This change is expected to go live on Intrepid on October 17. These changes are already live on Surveyor, if you wish to test your scripts.

Switch to Challenger Means Procedural Changes for Users

Challenger (the ALCF's new rack of Blue Gene/P) will be online soon. Once Challenger is online, the prod-devel queue on Intrepid will be retired and jobs formerly run there will be run on Challenger. To help smooth the transition to Challenger, please continue to watch for additional information and training opportunities.

Pages