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| Subject: |
Seaborg update : new LL classes and compiler upgrades |
| Author: |
David Skinner <dskinner_at_nersc.gov> |
| Date: |
2003-02-20 21:35:57 |
| Greetings SP User,
* Compiler upgrade: Feb 26 the C and Fortran compilers will be upgraded
to versions 6.0.0.2 and 8.1.0.3 respectively. No outage will be required
for this upgrade. These new versions contain many fixes for bugs
reported to IBM by NERSC.
* In preparation for new hardware being added the following Load
Leveler class structure will go into effect March 3. New in this
structure is the distinction between a submit class and a load leveler
class:
Relative
Submit Class LL Class Nodes WallClock Priority
------------ ----------- ------- --------- --------
interactive ---> interactive 1- 8 00:30:00 1
debug ---------> debug 1- 24 00:30:00 2
premium -----+-> pre_1 1- 31 12:00:00 7
+-> pre_32 32-127 48:00:00 5
+-> pre_128 128-ALL 48:00:00 3
regular -----+-> reg_1 1- 31 12:00:00 8
+-> reg_1l 1- 31 24:00:00 8
+-> reg_32 32-127 48:00:00 6
+-> reg_128 128-ALL 48:00:00 4
low -----------> low 1-128 12:00:00 9
Job scripts should specify one of interactive, debug, regular, premium
or low. At submit time these jobs will be directed into one of various
subclass whose priority is determined by jobs size and wallclock time
requested.
Jobs requesting 12:00 hours or less wallclock will be allowed to
complete prior to scheduled system outages. Please checkpoint
appropriately if you want to use the longer running queues, as jobs
needing more than 12:00 hour may be terminated for scheduled downtimes.
More information on job limits, aging, and charging available at:
http://hpcf.nersc.gov/running_jobs/ibm/batch_new.html
Regards,
David Skinner
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