[mpich-discuss] MPI_Comm_spawn(), dynamic distribution and hydra

[Pavan Balaji]

On 03/03/2011 08:54 AM, Roberto Fichera wrote:
> This is really nice!!! It might solve my problem once I'll implement
> dynamic resource allocation. How can I provide my own node's list to
> hydra?

It's an info argument to comm_spawn. You can either use "host" for a 
single host or "hostfile" for a host list. Note that the MPI standard 
only specifies "host" option. The "hostfile" option is specific to Hydra.

  -- Pavan

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji