If you are participating in this workshop as part of re:Invent, then PCluster Manager will already be deployed for you.
Once your PCluster Manager CloudFormation stack has been deployed, you can follow these steps to connect to it:
Go to the AWS Console and use the search box to search for AWS CloudFormation.
Once CloudFormation appears in your search results, click on it to open the CloudFormation Management Console.
You’ll see a stack named mod-[random hash]. Click on that stack, then click on the Outputs tab, and finally click on the PclusterManagerUrl to connect to PCluster Manager.