Allocate device memory

Allocate a percentage size of device memory by specifying resources such as hygon.com/dcumem. Optional, each unit of hygon.com/dcumem equals 1 MiB of device memory.

      resources:
        limits:
          hygon.com/dcunum: 1 # requesting 1 DCU
          hygon.com/dcumem: 2000 # Each DCU contains 2000M device memory