On Feb 9, 2020, at 10:14 AM, Ralph Castain via devel <devel@lists.open-mpi.org> wrote: > > We are seeing many failures on MTT because of errors on the cmd line. Note > that by request of the OMPI community, PRRTE is strictly enforcing the Posix > "dash" syntax: > > * a single-dash must be used only for single-character options. You can > combine the single-character options like "-abc" as shorthand for "-a -b -c" > * two-dashes must precede ALL multi-character options. For example, "--mca" > as opposed to "-mca". The latter will be rejected with an error
Woo hoo! I'm all for these changes -- even though I may have been the one to write some of the original command-line parsing code, I grew to dislike the ambiguity of single-dash token options (e.g., "-mca" and the like). This is definitely something we're going to have to prominently mention in the OMPI v5 release announcements, though. -- Jeff Squyres jsquy...@cisco.com
