Installation

Dependencies for running the example include:

• tensorflow version 1.15 keras version 2.2.4.
• keras version 2.2.4.
• pyepics
• pcaspy
• h5py
• bokeh

pcaspy requires an EPICS install and has instructions on its website: https://pcaspy.readthedocs.io/en/latest/

conda install tensorflow keras pyepics h5py bokeh pcaspy matplotlib

Run

from the command line execute:

python online_surrogate_model.py

This will start an EPICS server with the model inputs and outputs as normal EPICS pvs: caput smvm:phi(1) 0.1

You can monitor the model output PVs as usual: camonitor smvm:x_95coremit

You'll see that this value has noise added on. The noise parameter are set by additional EPICS records caput OUTPUT_PVNAME:sigma

For the bokeh interactive sliders and striptool, run in a separate command line bokeh serve controls.py striptool.py

Open two webroswer windows. In each one navigate to http://localhost:5006/controls and http://localhost:5006/striptool. This should start the bokeh servers The controls tab has sliders for the surrogate model inputs, and the striptool shows one example of the model outputs, with noise added