Shi Jin

This nightly tarball https://download.open-mpi.org/nightly/open-mpi/main/openmpi-main-202208250241-96fadd9.tar.bz2 indicates it's generated on Aug 25 but I can still hit the issue with it.

Thanks for the information. I will add debug printing to the `MPI_FINALIZE` to check if it's called and get back to you later. For the compiler, I am using gcc/gfortran...

I can confirm `MPI_FINALIZE` is called in WRFV by adding debug output before and after this call.

[configure.wrf.txt](https://github.com/wrf-model/WRF/files/4766275/configure.wrf.txt) configure.wrf attached here.

Build log is here: [build.log](https://github.com/wrf-model/WRF/files/4766315/build.log)

@davegill Hi, it's an AWS EC2 instance with ubuntu1604 AMI.

So the error is due to the GNU version (5.4) is too old?

I tried to build Open MPI with `--disable-cuda`. I can see it's an option in hwloc's configure, but using this option still does not fix the issue.

Tested the `--enable-plugin` option introduced in https://github.com/open-mpi/ompi/pull/9921. Verified it fixes the issue we had.