/*D
   MPI_Start - Initiates a communication with a persistent request handle

Synopsis:
.vb
int MPI_Start(MPI_Request *request)
.ve

Input/Output Parameters:
. request - communication request (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_REQUEST
.N MPI_ERR_OTHER

D*/

