/*D
   MPI_Rget - Get data from a memory window on a remote process

Synopsis:
.vb
int MPI_Rget(void *origin_addr, int origin_count, MPI_Datatype origin_datatype,
             int target_rank, MPI_Aint target_disp, int target_count,
             MPI_Datatype target_datatype, MPI_Win win, MPI_Request *request)
.ve
.vb
int MPI_Rget_c(void *origin_addr, MPI_Count origin_count,
               MPI_Datatype origin_datatype, int target_rank,
               MPI_Aint target_disp, MPI_Count target_count,
               MPI_Datatype target_datatype, MPI_Win win, MPI_Request *request)
.ve

Input Parameters:
+ origin_count - number of entries in origin buffer (non-negative integer)
. origin_datatype - datatype of each entry in origin buffer (handle)
. target_rank - rank of target (non-negative integer)
. target_disp - displacement from window start to the beginning of the target buffer (non-negative integer)
. target_count - number of entries in target buffer (non-negative integer)
. target_datatype - datatype of each entry in target buffer (handle)
- win - window object used for communication (handle)

Output Parameters:
+ origin_addr - initial address of origin buffer (choice)
- request - RMA request (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_BUFFER
.N MPI_ERR_COUNT
.N MPI_ERR_DISP
.N MPI_ERR_RANK
.N MPI_ERR_TYPE
.N MPI_ERR_WIN
.N MPI_ERR_OTHER

.seealso: MPI_Get
D*/

