Parallel execution of subprocesses

HeikoPaulheim

Hi RapidMiners,

I have written an operator that executes a subprocess with different subsets of the data (like Bagging does, just a bit trickier, since the metadata also changes between the runs - but I eventually got it to work).

Now, my question is: can I execute multiple instances of the subprocess in parallel? If yes, how do I do that? The problem is that there seems to be only one instance of the nested process and its ports, so if I try something like that

innerExampleSource.deliver(DATA_FOR_THIS_RUN);
getSubprocess(0).execute();
PredictionModel model = (PredictionModel) innerModelSink.getData(PredictionModel.class);

in a multithreaded fashion, it breaks.

Any hints and/or templates?

Thank you,
Heiko

HeikoPaulheim

Hi RapidMiners,

I found a way around by calling "cloneOperator". However, I am not exactly sure what is happening here (despite the documentation of said method saying "Use this method only if you sure what you are doing."  ), so I still appreciate your feedback.

Cheers,
Heiko