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…ghost explicitly, so unnecessary. This reverts commit 3bd488c.
Avoids the need to compile with MPI support
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Avoids the need to compile with MPI support, which I needed to do when running many independent copies of LAMMPS per node in a workflow.
This change does not preclude running LAMMPS with MPI, but you will have to rely on setting
CUDA_VISIBLE_DEVICESfor each rank when launching LAMMPS (which is recommended mode at ALCF).I've marked this as a Draft for you to consider, noting that another PR to lammps-mace alters the GPU pinning in a different direction.