mvapich mpiexec flags & Print invocation #186

Job	Run time
Github \| Docker	58m 54s
Github (ubuntu, mpi, debug, true)	1h 4m 11s
Georgia Tech \| Phoenix (NVHPC) (cpu)	44m 33s
Github (ubuntu, mpi, debug, false)	54m 59s
Georgia Tech \| Phoenix (NVHPC) (gpu)	6h 0m 16s
Github (ubuntu, mpi, no-debug, true)	1h 3m 35s
Github (ubuntu, mpi, no-debug, false)	58m 37s
Github (ubuntu, no-mpi, debug, true)	24m 17s
Github (ubuntu, no-mpi, debug, false)	25m 27s
Github (ubuntu, no-mpi, no-debug, true)	33m 3s
Github (ubuntu, no-mpi, no-debug, false)	19m 23s
Github (macos, mpi, debug, false)	36m 26s
Github (macos, mpi, no-debug, false)	1h 17m 38s
Github (macos, no-mpi, debug, false)	21m 21s
Github (macos, no-mpi, no-debug, false)	25m 53s
	16h 8m 33s

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