# Slurm Workload Manager (`slurm`)
<a name="schedulers.slurm"></a>

AWS ParallelCluster version 2.11.9 uses Slurm 20.11.9. For information about Slurm, see [https://slurm.schedmd.com/](https://slurm.schedmd.com/). For downloads, see [https://github.com/SchedMD/slurm/tags](https://github.com/SchedMD/slurm/tags). For the source code, see [https://github.com/SchedMD/slurm](https://github.com/SchedMD/slurm).

**Important**  
AWS ParallelCluster is tested with Slurm configuration parameters, which are provided by default. Any changes that you make to these Slurm configuration parameters are done at your own risk. They are supported only on a best-effort basis.


| AWS ParallelCluster version(s) | Supported Slurm version | 
| --- | --- | 
|  2.11.7, 2.11.8, 2.11.9  |  20.11.9  | 
|  2.11.4 to 2.11.6  |  20.11.8  | 
|  2.11.0 to 2.11.3  |  20.11.7  | 
|  2.10.4  |  20.02.7  | 
|  2.9.0 to 2.10.3  |  20.02.4  | 
|  2.6 to 2.8.1  |  19.05.5  | 
|  2.5.0, 2.5.1  |  19.05.3-2  | 
|  2.3.1 to 2.4.1  |  18.08.6-2  | 
|  prior to 2.3.1  |  16.05.3-1  |