Support for external openmpi libraries

conda-forge / openmpi-feedstock

A conda-smithy repository for openmpi.

BSD 3-Clause "New" or "Revised" License

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Support for external openmpi libraries #90

Closed heather999 closed 2 years ago

heather999 commented 2 years ago

[x] I read the conda-forge documentation and could not find the solution for my problem there.

Issue:

I am a happy user of conda install mpich=3=*_external so I can utilize the mpich libraries available at NERSC (HPC). I'd like to do the same with openmpi. Looking at the doc which mentions similar openmpi support is not yet available, I'm wondering if things have improved with ABI compatibility so that this could be considered?

dalcinl commented 2 years ago

You should really ask upstream to Open MPI developers. Or you could try to implement the feature anyway and see whether it works. Without commitment from upstream, it is a risky move: who is going to take responsibility of the mess if the thing ever breaks?

leofang commented 2 years ago

If you open an issue upstream, please link it here so that we can follow, thanks 🙂

beckermr commented 2 years ago

Hi everyone. We should be fine to implement this. If it breaks, nobody is responsible.

The Abi lab page for openmpi is pretty benign and we pin globally at 4 in conda forge anyways.

https://abi-laboratory.pro/?view=timeline&l=openmpi

Cc @conda-forge/core for viz