Downloading the source and creating the executable Download the current version of the code and data here , and then edit the file path.c to set the path. Last changed 2001 Apr 16. Next compile the code. This explains how to execute the code. You must compile some stellar data files if you want to use the Atlas, CoStar, and Rauch stellar atmosphere continua.
Instructions are here .
Next run the test cases to confirm that all is well. Hot Fixes A set of corrections to the source, which will be incorporated in the next incremental upgrade, are listed in the Hot Fixes page. It is very important that you edit the source to incorporate these Hot Fixes since they correct known problems. The source you obtain here does not have any of these these fixes included. This page shows some examples of calling Cloudy as a subprogram to compute grids of models.