Serge <sk...@ap.smu.ca> writes: > This is exactly what I am doing -- controlling distribution of > processes with mpirun on the SGE-allocated nodes, by supplying the > hostfile. Grid Engine allocates nodes and generates a hostfile, which > I then can modify however I want to, before running the mpirun > command. Moreover, it gives more control, by allowing to create > specific SGE parallel environments, where the process distribution is > predetermined -- one less worry for users playing with mpirun options.
I'm not sure I understand, but if you want control just via the PE without using the allocation_rule (and without having to change the mpirun invocation): As far as I remember from when it was done like that here, if you use the PE starter to mangle SGE's $PE_HOSTFILE, which the tight integration picks up, open-mpi 1.3 does the expected thing with it, as for 1.2. Is that actually not the case, or is it just doing it explicitly on the command line that's the problem?
