AutoMPI is a boolean setting in ParaView that, when enabled, launches a server process with
mpiexec when the ParaView client runs, then the client connects to that server. It was created as a convenient way to enable parallelism in ParaView back when most VTK algorithms were not multithreaded. These days, many VTK/ParaView filters are multithreaded to run on multiple cores, and this is usually faster than running separate MPI processes for parallelization of serial algorithms.
Should we remove AutoMPI?