Difference between revisions of "Batch-Scheduler"
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== Usage == | == Usage == | ||
| − | If you want to execute a program in the batch system, you need to submit | + | If you want to execute a program in the batch system, you need to submit a [[Jobscript]] you have written for the Scheduler used on the batch system. In this Jobscript, the Scheduler needs to learn: |
* how many resources your program needs (e.g. time and memory) | * how many resources your program needs (e.g. time and memory) | ||
* how you want to parallelize your program | * how you want to parallelize your program | ||
Revision as of 14:48, 14 November 2018
This page gives an overview of what a Batch-Scheduler can do and what pitfalls may exist. A more general description of why Batch-Schedulers are needed can be found here. There are different Schedulers around, e.g. SLURM, LSF and Torque. Click here to figure out which one you need.
Usage
If you want to execute a program in the batch system, you need to submit a Jobscript you have written for the Scheduler used on the batch system. In this Jobscript, the Scheduler needs to learn:
- how many resources your program needs (e.g. time and memory)
- how you want to parallelize your program
There are in general four types of parallelization:
- serial (no parallelization)
- shared memory only (e.g. OpenMP)
- distributed memory only (e.g. MPI)
- hybrid parallelisation
Serial Jobs
Distributed Memory Parallelization
Hybrid Parallelization
Advanced Usage
Here is stuff about
- brief mentioning of non-mpi-multi-noding
- that you should split long-runners (aka Chain Jobs) and why
- a brief mentioning of array jobs