DQS on the AIT Alpha farm is configured to provide seven groups of queues:
Group Name Group Maximum CPU Max memory $TMPDIR # of queues max disk in group SMALL FARM-S 8 hours CPU 40 MB 255 MB 1 SMALL128 FARM-S128 8 hours CPU 100 MB 255 MB 1 SHORT FARM-T 10 min CPU 512 MB 800 MB 1 MEDIUM FARM-M 4 hours CPU * 256 MB 8000 MB ** 2 LONG-SMALL FARM-LS 72 hours CPU * 256 MB 8000 MB ** 2 LARGE FARM-L 48 hours CPU * 512 MB 8000 MB ** 2 HUGE FARM-H 48 hours CPU 1500 MB 30000 MB 1
designed to support the execution of jobs requiring various combinations of CPU time and memory.
*) One queue in each group exists on a DEC XP-1000 which has 2 Gbytes of main memory. 1 additional queue for MEDIUM, LONG-SMALL and LARGE is on a loaner XP-900. The allowed memory use per queue is the same, but the Max CPU is 50% higher than that listed here to compensate for the speed differential between the XP-900 and the XP-1000
**) The 8 GB disk space for $TMPDIR is shared between the MEDIUM and LONG-SMALL queues on the DEC XP-1000. The 8 GB disk space for $TMPDIR is shared bewteen the MEDIUM, LONG-SMALL, and LARGE queues on the loaner XP-900.
Access to queues in the FARM-L, FARM-LS, and FARM-H groups is limited to users who have applied for and been awarded grants for usage of these resources.An application form is available from this page.
The DQS command qstat shows the current queue configurations:
QUEUE GROUP ARCHITECTURE STATUS OWNER REQUEST JOB_ID medium-01 FARM-M AXP Idle short-01 FARM-T AXP Idle long-small-01 FARM-LS AXP Idle huge-01 FARM-H AXP Idle large-01 FARM-L AXP Idle medium-02 FARM-M AXP Idle long-small-02 FARM-LS AXP Idle large-02 FARM-L AXP Idle small-01 FARM-L AXP Idle ...By default, a DQS job will be sent to a queue in the FARM-M group. Submittal of a job to the FARM-L group, for example, requires either adding this line:
#$ -G FARM-L 1to the job submittal file, or using the -G command-line option to qsub:
Vincent% qsub -G FARM-L 1 submittal_script_name
The 1 on this command refers to the number of queues within the group to reserve for your job. This will always be 1.