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Featured Announcements

Edison's move has completed

January 8, 2016 by Richard Gerber

We're pleased to announce that Edison is once again available to all NERSC users. The move from the NERSC Oakland Scientific Facility to the main Berkeley Lab campus was completed one week earlier than expected! Usage will not be charged through the end of the allocation year. Edison is now using the SLURM batch scheduler and job launcher (qsub will not work!). Please see the following web page for more information: The system is believed to be stable, but some testing and configuration is still ongoing. Please report any problems or issues to If you encounter performance issues while running OpenMP (or other) threaded code, please make sure you are setting OMP_NUM_THREADS correctly and using the proper options shown in the "Srun Options" section of the web page mentioned above. We expect demand to be high, so stricter job limits will be in place through the end of the allocation year on Jan. 11, 2016. Please see

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Hopper has retired. NERSC is moving!

December 16, 2015 by Katie Antypas

NERSC's Hopper system has retired and NERSC (people and remaining systems) are moving to our new facility on the hill. We thank all our users for your patience during our move! Regards, Katie Antypas Department Head for Scientific Computing and Data Services

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Edison scratch files will be deleted on 11/30/2015 when Edison moves

November 15, 2015 by Zhengji Zhao

Edison is scheduled to be powered off at 7:00am PST on November 30, 2015 to move to our new CRT building. We expect Edison to be offline for up to six weeks. During the move Edison's scratch file systems will be reformatted and all data will be removed. ALL files on the /scratch1, /scratch2, and /scratch3 file systems WILL BE DELETED! Please save your important files on HPSS, your /project directory, or elsewhere. If you plan to back up many small files to HPSS, please use the htar utility to concatenate those small files into a larger archive. If you need help or advice please contact

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Global Scratch (/global/scratch2 aka $GSCRATCH) will be retired on October 14 at 12:00 PDT

October 9, 2015 by Richard Gerber

This is a reminder that the Global Scratch (/global/scratch2 aka $GSCRATCH)
file system will be retired on next Wednesday, October 14 at 12:00 (noon)
PDT. The file system will be decommissioned and not be accessible after
its retirement. Please make sure to back up your important files to HPSS
or another permanent file systems. Do not wait until the last day since
backup may take longer than expected.

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