https://www.ibm.com/docs/en/smpi/10.2?topic=modifiers-map-by-pprnunit-map-by-pprnunitpen-options
–map-by ppr:n:unit and –map-by ppr:n:unit:pe=n options
https://www.ibm.com/docs/en/smpi/10.2?topic=modifiers-map-by-pprnunit-map-by-pprnunitpen-options