[TRNSYS-users] How to speed-up TRNSYS co-simulation

[Amirreza Heidari]

Hello,

I need to run my TRNSYS simulation from a Python script to give some inputs
and then read back some outputs. At the moment I am using I write values to
the .back  and .b18 files, then the *subprocess *function in Python runs
the simulation for one timestep, and then I read the outputs from the
outputs of printer component. The co-simulation with this method is very
time-consuming. So I am searching for easier methods. I also tried the
following:

*Implementing my Python script in Type 3157**:* This component has a nested
dictionary to receive inputs and give back outputs. But my Python script
includes a Neural Network that should be trained, and it is not clear how
this component can save the neural network. Saving it externally is not
feasible due to some other details.

*Using FMU*: I heard about TRNSYS FMU
<https://sourceforge.net/projects/trnsys-fmu/> for co-simulation but there
is not a clear tutorial or example and I am not sure if it fits to my
purpose.

Any feedback on how to speed up my co-simulation is appreciated.

Thanks
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