v2 config valid fail ('OpenpaiConfig: trial_cpu_number is not set')

[666XD]

Describe the issue:

Using v2 config on pai and get the following error.
ERROR: Config V2 validation failed: ValueError('OpenpaiConfig: trial_cpu_number is not set')
ERROR: 'NoneType' object has no attribute 'get'

But I can't find a way to set the trial CPU number on v2 config.

Environment: ubuntu 18

• NNI version: 2.2
• Training service (local|remote|pai|aml|etc): pai
• Python version: 3.8.2
• Is running in Docker?: yes

Configuration:

searchSpaceFile: searchSpace.json
trialCodeDirectory: .
trialCommand: python3 mnist.py
trialConcurrency: 3
trialGpuNumber: 1
maxTrialNumber: 12
tuner:
  name: TPE
  classArgs:
    optimize_mode: maximize
trainingService:
  platform: "openpai"
  host: "http://172.16.1.16"
  token: 'xxxxxxxxxxx'
  username: 'admin'
  localStorageMountPoint: '~/'
  containerStorageMountPoint: '~/'

[ultmaster]

You can set trialCpuNumber in trainingService. It's missing in docs. We will update soon.

[666XD]

It's worked! Thanks!

And I found that

• localStorageMountPoint
• trial_memory_size
• storage_config_name

are also request for PAI mode or it will fail on the validation part, but it does not appear in the docs too.
And what does localStorageMountPoint used for?

Besides, nniManagerStorageMountPoint seens not working correctly.
I get this message
ERROR: Config V2 validation failed: ValueError('OpenpaiConfig: Unrecognized fields nnimanagerstoragemountpoint')
when I add it to the config.

Here's how my config_v2 looks right now:

searchSpaceFile: searchSpace.json
trialCodeDirectory: .
trialCommand: python3 mnist.py
trialConcurrency: 3
trialGpuNumber: 1
maxTrialNumber: 12
tuner:
  name: TPE
  classArgs:
    optimize_mode: maximize
trainingService:
  platform: "openpai"
  host: "http://172.16.1.16"
  username: "admin"
  token: "xxxxxxxxx"
  # nniManagerStorageMountPoint: '/some/path' # !Error
  localStorageMountPoint: '/some/path' #?? what is this for?
  containerStorageMountPoint: '/some/path'
  trialCpuNumber: 8
  trial_memory_size: 1024
  openpaiConfig:
  storage_config_name: 'some name'

Really looking for the PAI tutorial for v2 config~

[liuzhe-lz]

Sorry the doc is outdated. We are updating it now. For a quick example, trial memory size can be "8gb" or "8192MB" or similar.
localStorageMountPoint is the mount point of NFS storage on local machine. This is the new name of nniManagerMountPoint.