Hopper Featured Announcements
Workshop on Cray XE6 User Experiences September 27-28
June 20, 2011 by Helen He | 0 Comments
Sandia National Laboratory and Cray Inc are hosting a Workshop on Cray XE6 User Experiences in Albuquerque, New Mexico, on September 27 -28, 2011. The workshop will focus on:
Hopper batch queue boundary changes and 25% discount for reg_med
June 17, 2011 by Francesca Verdier | 0 Comments
Effective immediately, the following changes to the Hopper batch queue boundaries (affecting reg_med, reg_short, reg_small, and low queues only) have been made, and a 25% charging discount to reg_med queue is now applied.
Reformatting $SCRATCH2 this Thursday -- Files DELETED
June 14, 2011 by Helen He | 0 Comments
As announced last week, $SCRATCH2 file system on Hopper will be reformatted starting 6am Pacific time this Thursday, June 16. ALL files will be DELETED. The file system is expected to be unavailable throughout the weekend. There will be a short period of time for dedicated IO testing, when the batch queues will be stopped. The login nodes will be available continuously.
We will send out another notice when $SCRATCH2 file system is available to use again.
Reformatting $SCRATCH2 file system next Thursday June 16th -- Files DELETED
June 10, 2011 by Helen He | 0 Comments
Next Thursday, June 16th, we will be reformatting the $SCRATCH2 file system on Hopper and all files will be DELETED. Thank you to the many users who have already moved files out of $SCRATCH2. If you haven't moved your data, please make sure to back up it up to HPSS or move it to the $SCRATCH file system.
Because the reformat will occur in less than a week and we want to make sure important user data is not lost, NERSC will take a snapshot (backup) of the remaining data in $SCRATCH2 between now and Thursday. If you write to the $SCRATCH2 file system after we take the snapshot though, your data will not be saved. We suggest you not use the $SCRATCH2 file system until after the reformatting June 16th.
Request to move $SCRATCH2 data and I/O testing Thursday (tomorrow) night
June 8, 2011 by Helen He | 0 Comments
We will me doing some dedicated I/O testing on the $SCRATCH2 file system for a few hours late on Thursday (tomorrow, June 9) night from 10pm-1am Pacific Time. This is to test a software patch intended to improve I/O performance on Hopper. We'd like to do the testing on as clean a file system as possible and would like to request your help and ask you to move data from $SCRATCH2 to $SCRATCH and launch jobs from $SCRATCH until further notice.
