Specifying log file location using .json runner

[dhamilt6uvm]

Hello,

Is there a way to specify where you want log files generated by a HELICS co-simulation to be stored? In particular, I am interested in setting this up using the .json runner and federate configuration files.

Thanks!

[trevorhardy]

Looking at the code in "cli.py" in PyHELICS, it doesn't look like there's a way to configure the location of the logging file.

BUT, I decided to add it as a feature since it seemed within my programming ability to achieve. I've added the feature in the "add_runner_logging_path" branch and have a PR in place now.

To use it just add "logging_path" at the root of the JSON and specify the location of where you'd like the logging files (relative the runner.json) to land. The path has to already exist; that is, this feature won't make folders for you, you have to get them in place yourself.

Here's an example of a modified runner for the "fundamental_default" example that puts the logs in a folder called "logs" that is at the same point in the file hierarchy as the runner.json:

{
  "name": "fundamental_default",
  "broker": true,
  "logging_path": "./logs",
  "federates": [
    {
      "directory": ".",
      "exec": "python -u Charger.py 1",
      "host": "localhost",
      "name": "Charger"
    },
    {
      "directory": ".",
      "exec": "python -u Battery.py 1",
      "host": "localhost",
      "name": "Battery"
    }
  ]
}