Table of Contents
Sesame cluster
 | Sesame is a 3584-processor beowulf cluster that can support applications requiring up to 3GB of memory per processor. | |
Production runs
to setup special events, mark your event in this calendar:
login: sesame.cluster@gmail.com pwd: sesame4you
Group schedule
default time slots for production runs:
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
 |  | |  | | |  |
|
| Daniel | Hejun | Daniel | Ebru | Ebru | Hejun | Yang | |
Queues
| risk | interruptible | default queue | 3584 cores | risk jobs can get killed by higher priority jobs. it should be used for non-critical jobs and testing | |
|---|---|---|---|---|---|
| test | non-interruptible | test queue | 3584 cores | jobs can't get killed but have a run-time limit of 15 min. it should be used for testing and debugging purposes. | |
| tromp | non-interruptible | priority queue | 2118 / 1734 soft limit | jobs have higher priority and can't get killed. it should be used for production runs | |
special: Quake for movie runs only (384 cores)
Tips
Job priorities are calculated on:
- Group (tromp vs. the rest of the world)
- User usage of the last 15/5 days
- User wait time
- number of cores job requests
To show priorities of your idle jobs:
diagnose -p
or
showq -i
To see total cores used in tromp queue:
make an alias
alias showq-totaltromp='showq -r | grep TR | awk "BEGIN{sum=0}{sum+=\$10}END{print \"tromp cores used:\",sum,\"of (2118 / 1734)\"}" '
then
showq-totaltromp
To see total usage of cluster:
pbstop
