Red Hat OpenShift Container Platform

Label GPU machine sets for the cluster autoscaler

Label your machine sets to indicate which machines the cluster autoscaler can use for GPU-enabled nodes. Applying the accelerator label helps ensure that the autoscaler deploys the correct resources for your GPU workloads.

Prerequisites

Your cluster uses a cluster autoscaler.

Procedure

On the machine set that you want to create machines for the cluster autoscaler to use to deploy GPU-enabled nodes, add a cluster-api/accelerator label:
apiVersion: machine.openshift.io/v1beta1 kind: MachineSet metadata: name: machine-set-name spec: template: spec: metadata: labels: cluster-api/accelerator: <accelerator_name>
where:

<accelerator_name>

Specifies a label of your choice that consists of alphanumeric characters, -, _, or . and starts and ends with an alphanumeric character. For example, you might use nvidia-t4 to represent Nvidia T4 GPUs, or nvidia-a10g for A10G GPUs.

You must specify the value of this label for the spec.resourceLimits.gpus.type parameter in your ClusterAutoscaler CR. For more information, see "Cluster autoscaler resource definition".