Default k8s scheduler support

Organization Name:
Advantech

Short summary about the issue/question:
Does the default k8s scheduler support in opnepai v1.5.0?
How to run CPU and GPU tasks on single GPU worker?(E.g. https://github.com/microsoft/pai/issues/5044)

Brief what process you are following:
In v1.0.1, we can use the k8s default scheduler based on https://github.com/microsoft/pai/issues/5044#issuecomment-720410187. When I change the k8s default scheduler, the SKU based scheduling seems incorrect. Does the default k8s scheduler support in opnepai v1.5.0 or in the future release?

How to reproduce it:

1. Deploy openpai v1.5.0
2. Change the scheduler as follows

hivedscheduler:
  config: |

3. Apply the configuration
   ./paictl.py service stop -n rest-server hivedscheduler
   ./paictl.py config push -p -m service
   ./paictl.py service start -n hivedscheduler rest-server
4. The SKU on the job submission seems incorrect
   

OpenPAI Environment:

• OpenPAI version:
  v1.5.0
• OS (e.g. from /etc/os-release):
  Ubuntu 18.04.3 LTS