Custom Slurm settings for AWS PCS clusters

For more information on CLI Filters in AWS PCS, see Configure Slurm CLI Filter Plugins on an AWS PCS cluster.

For more information on CLI Filters in AWS PCS, see Configure Slurm CLI Filter Plugins on an AWS PCS cluster.

AWS PCS supports the REBOOT_ONLY value, which runs the HealthCheckProgram only after a node reboot, on Slurm version 26.05 and later. REBOOT_ONLY is mutually exclusive with any other value.

For more information on Metrics in AWS PCS, see Slurm metrics in AWS PCS.

AWS PCS supports a minimum value of 5 seconds for MinJobAge.

To use X11 forwarding (that is, when you enable the X11 flag on PrologFlags), the xauth utility must be installed on the compute node group AMI (the worker AMI). Without it, X11 forwarding does not work. On Amazon Linux, xauth is provided by the xorg-x11-xauth package. To install it, use the system package manager, for example sudo yum install xorg-x11-xauth.

AWS PCS supports the CR_Socket and CR_Socket_Memory values on Slurm version 25.11 and later.

AWS PCS supports the enable_stepmgr value. It requires PrologFlags to be unset or to include Contain.