Analysis hardware at UIUC

Computers

MuCap disks

As of 12/12/03 /data/25 contains mostly run5 data, /data/26 mostly run 6 data. Once the robot arrives, we will tape backup this data and clean /data/25 and /data/26. The space of 280 GB should be shared between MuCap users for the storage of root and analysis files.
The /data/mucap_stage will be the dedicated staging area for relevant raw data runs. We should foresee a large storage area where we store the most interesting runs of run7 for an extended time (stor7). These run should only deleted when agreed upon by the parties involved. A second smaller area (stage) is devoted for real temporary staging, when copying a run sequence from the robot. Files in this area can be deleted after 10 hours. We will establish these directories with goup read/write priviledge. The files there should be created with the same priviledge, which would simplify the administration of the TByte staging disk. The created root files should be kept on individual user directories or on special directories according to different production cycles. The root files should be located on data/25 and data/26.

Berkeley tape robot

  • Robot manual
  • SCSI card manual
  • General instructions
  • Tom's log history

    • Be nice

    Fri, 21 Mar 2003 12:39:40 -0600 (CST)
"L. A. Linden Levy" 

Dear NPL Linux Community
Due to the recent increase of users on the non-interactive nodes
we would like to remind you of the niceness utility in
Linux. The current paradigm is:

Usage            length (hr)        niceness
=====            ==========         ========
CPU              0-4                0
CPU              4-10               10
CPU              10+                19
Disk IO          any                10  (i.e. looping over data on ide drives)

For information on the nice utility try "man nice".  A simple example
would be to run the code "monte_carlo" that will take approximately 10
hours with the following command:
nice -10 monte_carlo
This will set the niceness for monte_carlo to ten. But if you have
already started a program and wish to change the niceness level you
are in luck...try:
renice +5 your_program_pid