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- Visibility: Public
- Change Control: Stable
- Details:
- A new qsub option “-L” can be used to specify more than one resource specification within one single command. This option is of type string and can be used multiple times while submitting a job.
- For example, users can now submit jobs with multiple resource specifications in following manner:
qsub -qworkq2 -L select=2:ncpus=4:mem=20gb,walltime=10000,place=free -L select=4:ncpus=2,mem=20gb,walltime=8000,place=scatter job.scr - Implementation wise, qsub command internally will submit jobs one after another for each “resource request” specified in the command. It will also make sure that after submitting the first job it will use that job-id with “-s” Wjob_set” option (making the first job as job_set leader) for every subsequent “resource request” specified with the command.
- “-L” option and “-s” Wjob_set” options can not be used together. Using them together will make qsub throw following error on console. “qsub: -s Wjob_set option can not be used with -L option".
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qsub –A “abcd” -L select=1:ncpus=16:mem=2gb,nfilter=“resources_available[‘os_ver’]>=rhel6 and resources_available[‘color’]==‘blue’ ”,walltime=02:00:00 -L select=2:ncpus=8:mem=2gb,nfilter=“resources_available[‘os_ver’]!=rhel7 and resources_available[‘color’]!=‘black’ ”,walltime=01:45:00 job.scr
using #PBS directive -
#PBS –A “abcd”#PBS –L select=1:ncpus=16:mem=2gb,nfilter=“resources_available[‘os_ver’]>=rhel6 and resources_available[‘color’]==‘blue’ ”,walltime=02:00:00#PBS –L select=2:ncpus=8:mem=2gb,nfilter=“resources_available[‘os_ver’]!=rhel7 and resources_available[‘color’]!=‘black’ ”,walltime=01:45:00
using qsub "-W job_set" option:
- If user already knows that there is a job_set that exists in server then he/she can submit another job to the same job_set by specifying it's name using "-W job_set" option.
- Every resource request specified by “-L” option will get queued as a separate job and will get it’s own job id.
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