'quniform' has different meaning beween GridSearch and other tuner.

[xuehui1991]

Short summary about the issue/question:

The 'qunform' has different meaning between GridSearch and Other tuner.

Such as these json file:

in GridSearch, the '10' means count, but in other tuner, the '10' means step.

There are some code for parsing 'quniform' in GridSearch.

Brief what process you are following:

How to reproduce it:

nni Environment:

• nni version: N/A
• nni mode(local|pai|remote): N/A
• OS:N/A
• python version: N/A
• is conda or virtualenv used?: N/A
• is running in docker?: N/A

need to update document(yes/no):

Anything else we need to know:

[ultmaster]

Just spent an hour figuring out why my learning rate are all zero, after I switched my tuner from GridSearch to TPE... Even didn't realize this when I read the docs of hyperopt...