The two files have a slightly different format and completely different meaning. The hostfile specifies how many slots are on a node. The rankfile specifies a rank and what node/slot it is to be mapped onto. Rankfiles can use relative node indexing and refer to nodes received from a resource manager - i.e., without any hostfile.
So the files are intentionally quite different. Trying to combine them would be rather ugly. Ralph On Thu, Jun 18, 2009 at 1:52 PM, Eugene Loh <eugene....@sun.com> wrote: > In order to use "mpirun --rankfile", I also need to specify hosts/hostlist. > But that information is redundant with what I provide in the rankfile. So, > from a user's point of view, this strikes me as broken. Yes? Should I file > a ticket, or am I missing something here about this functionality? > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel >
