Version dependant slowing down of Gaussian Mixture sampling in Ubuntu 20.04

[iavicenna]

Apologies my mistake, I indeed meant 5.9.0 vs 5.9.1. You can look at the attached file logp-dlogp (file names automatically derive from pm.version to prevent any possible confusion). The difference I displayed above is 5.9.0 vs 5.9.1. Most of the difference comes from just ID differences but in some cases it seems like a structural difference as above.