Hi John, On 03/12/2013 11:32 AM US Central Time, John DelSignore wrote:

If possible, it would be good is MPICH could be changed to share the host and executable name character strings across multiple process descriptor entries.

This is a maintenance hassle with respect to chasing dangling pointers in the future. Also, I'm not sure how much space this saves. We are working with the MPI Forum on a more scalable interface where this information is distributed across various processes. That might be a better model here. -- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji