Comma-delimited list of one or more files containing PRRTE and PMIx
MCA params for tuning DVM and/or application operations. Parameters in
the file will be treated as generic parameters and subject to the
translation rules/uncertainties. See --help mca for more
information.
Syntax in the file is:
param = value
with one parameter and its associated value per line. Empty lines and
lines beginning with the # character are ignored.