Current Monitor API needs to be updated

[elvinhajizada]

Objective of issue: Current Monitor API need to be updated to take into account new design of Monitors

Lava version:

• [x] 0.4.0 (feature release)
• [ ] 0.3.1 (bug fixes)
• [ ] 0.3.0 (current version)
• [ ] 0.2.0
• [ ] 0.1.2

I'm submitting a ...

• [ ] bug report
• [X] feature request
• [ ] documentation request

Current behavior:

• There is only one Monitor class,
• That can monitor only one Var or OutPort of a single Process
• User need to use get_data() function to create a data structure of collected data, which then can only be access by process name and Var/OutPort name combination (string) .e.g. data1 = monitor1.get_data() data2 = monitor2.get_data() volt_data = data1[neuron.name][neuron.v.name] spike_data = data2[neuron.name][neuron.s_out.name]

Expected behavior:

• In the new design we will have multiple classes (e.g. Recorder, Live Streamer, etc.) inherited from an abstract Monitor class.
• get_data() function should accept the Var or OutPort and directly return the data data_v = recorder.get_data(neuron1.v)
• Monitors will be able to probe with some time offset and interval with the following API: recorder.probe(neuron.v, interval=2, offset=0)
• Multiple Var probing should be done by roving list of Vars to the probe() funtion: recorder.probe([neuron1.v, neuron2.v])