This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revisionBoth sides next revision |
| abstract:farber:runjobs:schedule_jobs [2019-02-19 10:32] – [Array jobs] anita | abstract:farber:runjobs:schedule_jobs [2019-02-19 10:35] – [Parallel environments] anita |
|---|
| </code> | </code> |
| |
| This will submit 30 jobs to the queue, with the SGE_TASK_ID variable set for use in the ''myjobs.qs'' script (an [[general:userguide:06_runtime_environ?&#array-jobs|array job]].) | This will submit 30 jobs to the queue, with the SGE_TASK_ID variable set for use in the ''myjobs.qs'' script (an [[:abstract:farber:runjobs:schedule_jobs#array-jobs|array job]].) |
| The ''mem_free'' resource will cause Grid Engine to find a node (or wait until one is available) with 20 Gbytes of memory free. | The ''mem_free'' resource will cause Grid Engine to find a node (or wait until one is available) with 20 Gbytes of memory free. |
| The ''m_mem_free'' resource will tell Grid Engine to not schedule a job on a node unless the specified amount of memory is available to consume on that node. | The ''m_mem_free'' resource will tell Grid Engine to not schedule a job on a node unless the specified amount of memory is available to consume on that node. |
| === The threads parallel environment === | === The threads parallel environment === |
| |
| Jobs such as those having openMP directives use the **//threads//** parallel environment, an implementation of the [[:general:userguide:05_development#programming-models|shared-memory programming model]]. These SMP jobs can only use the cores on a **single** node. | Jobs such as those having openMP directives use the **//threads//** parallel environment, an implementation of the [[:abstract:farber:app_dev:prog_env#programming-models|shared-memory programming model]]. These SMP jobs can only use the cores on a **single** node. |
| |
| For example, if your group only owns nodes with 24 cores, then your ''–pe threads'' request may only ask for 24 or fewer slots. Use Grid Engine's **qconf** command to determine the names and characteristics of the queues and compute nodes available to your investing-entity group on a cluster. | For example, if your group only owns nodes with 24 cores, then your ''–pe threads'' request may only ask for 24 or fewer slots. Use Grid Engine's **qconf** command to determine the names and characteristics of the queues and compute nodes available to your investing-entity group on a cluster. |