MPI_Pack_external function - Message Passing Interface (original) (raw)

Packs a datatype into contiguous memory, using the external32 format.

Syntax

int MPIAPI MPI_Pack_external(
       _In_z_ char                 *datarep,
  _In_ void                        *inbuf,
       int                         incount,
       MPI_Datatype                datatype,
       _Out_bytecap_(outsize) void *outbuf,
       MPI_Aint                    outsize,
       _Inout_ MPI_Aint            *position
);

Parameters

datarep
Data representation.
inbuf [in]
Start address of the input buffer.
incount
Number of input data items.
datatype
Datatype of each input data item.
outbuf
Start address of the output buffer.
outsize
Output buffer size, in bytes.
position
Current position in buffer, in bytes.

Return value

Returns MPI_SUCCESS on success. Otherwise, the return value is an error code.

In Fortran, the return value is stored in the IERROR parameter.

Fortran

    MPI_PACK_EXTERNAL(DATAREP, INBUF, INCOUNT, DATATYPE, OUTBUF, OUTSIZE,
                POSITION, IERROR)
        INTEGER INCOUNT, DATATYPE, IERROR
        INTEGER(KIND=MPI_ADDRESS_KIND) OUTSIZE, POSITION
        CHARACTER*(*) DATAREP
        <type> INBUF(*), OUTBUF(*)

Requirements