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| doku:sge [2015/04/09 14:38] – ir | doku:sge [2016/06/21 11:31] (current) – ir |
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| ===== Sun grid engine (SGE) ===== | ===== Sun grid engine (SGE) ===== |
| ==== The job script ==== | ==== The job script ==== |
| | It is recommended to write the job script using a [[doku:win2vsc&#the_job_filetext_editors_on_the_cluster|text editors]] on the VSC //Linux// cluster. |
| | Editors in //Windows// may add additional invisible characters to the job file which render it unreadable and, thus, it is not executed. |
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| === A - the header of the job script === | === A - the header of the job script === |
| <code>#$ -N <job_name> | <code>#$ -N <job_name> |
| #$ -m beas # all job events sent via email </code> | #$ -m beas # all job events sent via email </code> |
| - "<job_name>" is a freely chosen descriptive name, | - "<job_name>" is a freely chosen descriptive name, |
| - "<slots>" is the number of processor cores that you want to use for the calculation. To ensure exclusive reservation of the compute nodes for your job, the value for "<slots>" has to be a multiple of 8. | - "<slots>" is the number of processor cores that you want to use for the calculation. The compute nodes are always reserved for your job, exclusively. If the value for "<slots>" is no integral multiple of 16, it is corrected to the next larger integral multiple of 16. |
| - "-V" declares that all environment variables in the qsub command's environment are to be exported to the batch job. | - "-V" declares that all environment variables in the qsub command's environment are to be exported to the batch job. |
| - "-l" specifies the job's runtime. This explicit specification is in particular advisable for jobs with short run times, i.e., several hours or even minutes. In order to **reduce the time in the queue**, see also the section on [[doku:runtime|maximum runtime specification.]] | - "-l" specifies the job's runtime. This explicit specification is in particular advisable for jobs with short run times, i.e., several hours or even minutes. In order to **reduce the time in the queue**, see also the section on [[doku:runtime|maximum runtime specification.]] |
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| ==== example ==== | ==== Example ==== |
| Here is an example job-script, requesting 32 processor cores, which will run for a maximum of 3 hours and sends emails at the beginning and at the end of the job: <code> | Here is an example job-script, requesting 32 processor cores, which will run for a maximum of 3 hours and sends emails at the beginning and at the end of the job: <code> |
| #$ -N hitchhiker | #$ -N hitchhiker |
| - View all jobs in the queue: <code>$ qstat -u \*</code> | - View all jobs in the queue: <code>$ qstat -u \*</code> |
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| For advanced topics see also [[doku:advanced_topics|Sun grid engine (SGE)]]. | ==== Advanced topics ==== |
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| | *[[doku:runtime|Faster job execution by runtime specification]] |
| | *[[doku:epilog|Epilog scripts: copying back data after job termination ]] |
| | *[[doku:job_chains|Job chains]] |
| | *[[doku:job_arrays|Job arrays]] |
| | *[[doku:ompmpi|Hybrid OpenMP/MPI jobs ]] |
| | *[[doku:memory_running_jobs|Find out memory usage of running jobs]] |
| | *[[doku:copy|Start copying process]] |
| | *[[doku:tight_integration|Tight integration]] |
| | *[[doku:foreingprojectjob|Using Resources of foreign Projects]] |
| | *[[doku:chge_parameters|Changing job parameters of already submitted jobs (qalter)]] |
| | *[[doku:miscellaneous|Miscellaneous]] |
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