[OpenFOAM] Unable to run SLURM partitioned simulation

Yes, this is something you need to take care of yourself. What would be the best way depends a lot on how you install preCICE in Spack. In the packages.yaml you could set default settings for packages to be built and also external packages like your existing OpenMPI installation.

You can also pass options to dependencies directly in the command line, i.e. something like

spack install precice ^openmpi +legacylaunchers schedulers=slurm

see, for example, the Spack tutorial. Note that I did not check whether the command here actually makes sense and would lead to a useful installation.

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