Add Htop to the Webui

[MaximilianArnold]

Hi,

since we are doing NN there could be heavy datasets which explode the ram and thus it would be nice to see the current ram load/cpu gpu/load in the webui.

What would you like to be added:
see top
Why is this needed:
It is a comfort feature

Without this feature, how does current nni work：
It does not show it
Components that may involve changes:

Brief description of your proposal if any:
Since its standard html you could easily add it.

[scarlett2018]

Thanks @MaximilianArnold for raising the new feature request.

[scarlett2018]

@Lijiaoa may you suggest how big the effort for prototyping this request? would like to discuss this with team based on the prototype if it is simple one.

[QuanluZhang]

@MaximilianArnold , this is a valid request. There will be a lot of work to support this feature when there are many different training services. For training services like AML, OpenPAI, they have collected such information (CPU/GPU/Mem/Network utilization) and displayed on their WebUI. Following "separate of concern", it is a good design choice for NNI to link each trial job to their corresponding web page in the training service. This has been supported by NNI for training services such as OpenPAI. For the training services (i.e., local, remote) which are implemented by NNI, it might be good to collect those information and display on NNI WebUI. We will put this feature in our backlog, and encourage external contribution on this feature