Hi, We're trying to track down some curious behavior and decided to take a step back and check a base assumption.
When running within a managed environment (job allocation): Q: Should you be able to use `--hostfile` or `--host` options to operate on a subset of the resources in the allocation? (Example: within 4 node SLURM allocation, run on just 2 nodes in allocation.) Q: Additionally, should this be the same when launching the DVM in order to run on a subset of resources using subsequent 'mpirun --hnp ...' commands? (Only 'orte-dvm' would need to have `--hostfile` or `--host` args.) There are a variety of interactions with ess/ras/rmaps and the resource manager, but the thought was that you "should" be able to use a hostfile to operate on a subset of the allocation. Is that a flawed assumption? Thanks, --tjn _________________________________________________________________________ Thomas Naughton naught...@ornl.gov Research Associate (865) 576-4184 _______________________________________________ devel mailing list devel@lists.open-mpi.org https://rfd.newmexicoconsortium.org/mailman/listinfo/devel