Try MPI_Get_processor_name.

Jeff 

On Thursday, March 12, 2015, YANG Fan <iddmbr@gmail.com> wrote:
Hi,

To run an MPI program on a cluster I need to pass the host file as a parameter. However, how can I know that what host name does a specific rank correspond to? Or how can I access the host file inside my MPI program? Thanks!

Best Regards,
Fan


--
Jeff Hammond
jeff.science@gmail.com
http://jeffhammond.github.io/