User`s guide

86 Cray T3E User’s Guide
8.4 Deleting an NQE batch job
Sometimes it is necessary to delete a job before it is finished. For exam-
ple, the input may be erroneous and you do not want to waste any CPU
time. A job is deleted with the command qdel. The most usual way to
use the qdel command is
qdel request-id
You can ensure the deletion of a job by sending a SIGKILL signal to the
running job. Use the option -k of the qdel command:
qdel -k request-id
8.5 Queues
The pipe queue available on the T3E is called prime. This pipe queue
redirects the jobs to the appropriate batch queues.
To see the current batch queues and their limits use the command qstat
-m, which displays the names of batch queues and the time limits. Here
is an extract from the output:
----------------------------------
NQS 3.3.0.4 BATCH QUEUE MPP LIMITS
----------------------------------
QUEUE NAME RUN QUEUE-PE’S R-PE’S R-TIME P-TIME
LIM/CNT LIM/CNT LIMIT LIMIT LIMIT
----------------------- --- --- ------ ------ ------ ------ ------
csc 2/0 224/0 224 14400 14400
fmi 4/0 256/0 128 7200 7200
fmi192 4/0 192/0 192 7200 7200
small 10/2 128/36 64 7200 7200
medium 10/1 160/32 64 43200 43200
large 1/1 **/128 128 43200 43200
----------------------- --- --- ------ ------ ------ ------ ------
sn6309 10/4 **/196
----------------------- --- --- ------ ------ ------ ------ ------
To see which pipe queues are redirected to which batch queues, use the
command qstat. Here is an extract of the command:
------------------------------
NQS 3.3.0.4 PIPE QUEUE SUMMARY
------------------------------
QUEUE NAME LIM TOT ENA STS QUE ROU WAI HLD ARR DESTINATIONS
----------------------- --- --- --- --- --- --- --- --- --- ------------
nqebatch 1 0 yes on 0 0 0 0 0 input
csc_pipe 1 0 yes on 0 0 0 0 0 csc
prime 1 0 yes on 0 0 0 0 0 input
input 1 0 yes on 0 0 0 0 0 small
medium
large
----------------------- --- --- --- --- --- --- --- --- --- ------------