GPU IDs should be automatically filled or at least have a message saying that needs to be filled instead of showing a cryptic error message in the console

[codecomputation]

GPU IDs in the Accelerate Launch section of the UI should be automatically filled with the number of the primary GPU. Currently it shows the following error message in the dev console if it's not filled:

Default process group has not been initialized, please make sure to call init_process_group

The error message is user-unfriendly and doesn't explain what is missing.