Johannes Buchner

Did you use version 2.6? I don't recall changing anything recently w.r.t. the multinest calls, but maybe it doesn't like wheel packages. What happens if you run with "mpiexec -np...

I would be glad if someone could help improve the documentation with MacOS. Since I don't own one, it is difficult for me to debug issues. Improving the documentation here...

Delete the entire folder and download MultiNest again.

There should be more output? For some reason xmeans_clstr is damaged? It's always good to clean the entire build/ folder including cmake cache files, whenever something changed. You can also...

so what is happening in xmeans_clstr at line 1826?

Try to recompile multinest (clean the build directory beforehand).

clean the build directory completely and rerun cmake.

Use ldd to identify the libraries needed by libmultinest.so (`ldd libmultinest.so`). check with `which python` (or python3) the python runtime actually used (is it conda?). Then use ldd on it....

there is also a conda pymultinest package, which installs multinest for you.

@grburgess suggests that using sudo is unwise, as it can mix python environments. Try without?