[mpich-discuss] Problem with spawning child with same executable name

[Yauheni Zelenko]

Hi!

I'm trying to use MPI_Comm_spawn to run child process and then use MPI_Intercomm_merge. This steps works when spawned children have different executable name then parent process but failed on MPI_Intercomm_merge step if executable names are same.

Attached files could demonstrate a problem. Code is based on spawn_merge example.

If difference in executable names is requirement, will be good idea to include in into  MPI_Comm_spawn documentation. Otherwise it's bug.

Eugene.
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