| MPI_BCAST_INIT(buffer, count, datatype, root, comm, info, request) | |
| INOUT buffer | starting address of buffer (choice) |
| IN count | number of entries in buffer (non-negative integer) |
| IN datatype | datatype of buffer (handle) |
| IN root | rank of broadcast root (integer) |
| IN comm | communicator (handle) |
| IN info | info argument (handle) |
| OUT request | communication request (handle) |
Creates a persistent collective communication request for the broadcast operation.