What is the difference between this volcano project and volcano plugin in huawei cloud CCE product?

[cauwulixuan]

What is the difference between this volcano project and volcano plugin in huawei cloud CCE product?

In huawei cloud CCE product, after installing volcano plugin, several plugin configs were found in volcano-scheduler-configmap, like:

apiVersion: v1
data:
  volcano-scheduler.conf: |
    actions: "enqueue, allocate, backfill"
    tiers:
    - plugins:
      - name: priority
      - name: gang
      - name: conformance
    - plugins:
      - name: overcommit
      - name: drf
      - name: predicates
      - name: proportion
      - name: nodeorder
      - name: binpack
    - plugins:
      - cce-gpu-topology-predicate
      - cce-gpu-topology-priority
      - cce-gpu
kind: ConfigMap

What confused me was the plugins (cce-gpu-topology-predicate, cce-gpu-topology-priority, cce-gpu) that were not in the volcano project. So how do these plugins with prefix cce- work?