Using a number of cores larger than the number of chains about exoplanet

[dfm]

Hi - This isn't really an exoplanet issue, all of the sampling is done by PyMC and that package only supports parallelizing across chains. You won't get any benefit from using multiple cores per chain because none of the calculations are parallelized. I'm going to close this as a "won't fix" because that's just how PyMC works!

[JulioHC00]

Ah I see! So there's no way to make the sampling go faster than a single core per chain right?

[dfm]

Unfortunately there isn't! Some elements of the model (e.g. linear algebra) may use multiple threads if you have an accelerated linear algebra library (regardless of the setting for cores), but unfortunately that's it. Sorry!!