Parametric Preprocessor

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The ParametricPreprocessor can be used independently but is most often used with EP-Launch. In EP-Launch, just select the file containing parametric objects and run it. If that does not work make sure that Run ParametricPreprocessor checkbox is checked in Option..Miscellaneous.

I do not know if OpenStudio supports that utility but it includes other ways of doing parametric analyses.

To run ParametricPreprocessor independently, you need to open a command line in the EnergyPlusV8-5-0\Preprocess\ParametricPreProcessor directory and type:

parametricpreprocessor.exe "<filename>"

Where filename is the name of the file including the path in double quotes. For example:

C:\EnergyPlusV8-5-0\PreProcess\ParametricPreProcessor>parametricpreprocessor.exe "c:\EnergyPlusV8-5-0\ExampleFiles\LBuildingAppGRotPar.idf"

You should then get the various files generated in the directory with the original IDF file.