The way intercomm merge is implemented in the prototype doesn't work for PML's that don't understand extended CID. Since its unlikely that all PML's will support exCID at some point need to handle this correctly. Probably better not to go straight to mpi_comm_create_from_group here.
hppritcha
commented
3 years ago
The way intercomm merge is implemented in the prototype doesn't work for PML's that don't understand extended CID. Since its unlikely that all PML's will support exCID at some point need to handle this correctly. Probably better not to go straight to mpi_comm_create_from_group here.