OpenMPI in 11.4

It’s 1.2.7, which is ridiculous! That was released in October 2008, superseded in March 2009,
and the current release is 1.4.3.

It also doesn’t work together with Python, but that’s a more esoteric issue. Both of them are
too clever by half, and the combination breaks the library loading mechanism. That’s an old
issue, with an old fix - though I haven’t yet checked my rebuild, so there may be more than
one problem.

Yup. The fix works. If you want to use it from Python, you must configure with --disable-dlopen. Don’t ask :frowning: