MPI_Get man page on Cygwin

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MPI_Get(3)			   Open MPI			    MPI_Get(3)

NAME
       MPI_Get - Copies data from the target memory to the origin.

SYNTAX
C Syntax
       #include <mpi.h>
       MPI_Get(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)

Fortran Syntax (see FORTRAN 77 NOTES)
       INCLUDE 'mpif.h'
       MPI_GET(ORIGIN_ADDR, ORIGIN_COUNT, ORIGIN_DATATYPE, TARGET_RANK,
	    TARGET_DISP, TARGET_COUNT, TARGET_DATATYPE, WIN, IERROR)
	    <type> ORIGIN_ADDR(*)
	    INTEGER(KIND=MPI_ADDRESS_KIND) TARGET_DISP
	    INTEGER ORIGIN_COUNT, ORIGIN_DATATYPE, TARGET_RANK,
	    TARGET_COUNT, TARGET_DATATYPE, WIN, IERROR

C++ Syntax
       #include <mpi.h>
       void MPI::Win::Get(const void *origin_addr, int origin_count,
	    const MPI::Datatype& origin_datatype, int target_rank,
	    MPI::Aint target_disp, int target_count,
	    const MPI::Datatype& target_datatype) const

INPUT PARAMETERS
       origin_addr
		 Initial address of origin buffer (choice).

       origin_count
		 Number of entries in origin buffer (nonnegative integer).

       origin_datatype
		 Data type of each entry in origin buffer (handle).

       target_rank
		 Rank of target (nonnegative integer).

       target_disp
		 Displacement from window start to the beginning of the target
		 buffer (nonnegative integer).

       target_count
		 Number of entries in target buffer (nonnegative integer).

       target datatype
		 datatype of each entry in target buffer (handle)

       win	 window object used for communication (handle)

OUTPUT PARAMETER
       IERROR	 Fortran only: Error status (integer).

DESCRIPTION
       MPI_Get copies data from the target memory to the  origin,  similar  to
       MPI_Put,	 except	 that  the direction of data transfer is reversed. The
       origin_datatype may not specify overlapping entries in the origin  buf‐
       fer.  The target buffer must be contained within the target window, and
       the copied data must fit, without truncation,  in  the  origin  buffer.
       Only processes within the same node can access the target window.

FORTRAN 77 NOTES
       The MPI standard prescribes portable Fortran syntax for the TARGET_DISP
       argument only for Fortran 90. FORTRAN 77 users may use the non-portable
       syntax

	    INTEGER*MPI_ADDRESS_KIND TARGET_DISP

       where  MPI_ADDRESS_KIND	is  a constant defined in mpif.h and gives the
       length of the declared integer in bytes.

ERRORS
       Almost all MPI routines return an error value; C routines as the	 value
       of  the	function  and Fortran routines in the last argument. C++ func‐
       tions do not return errors. If the default  error  handler  is  set  to
       MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI::Exception object.

       Before the error value is returned, the current MPI  error  handler  is
       called.	By  default, this error handler aborts the MPI job, except for
       I/O  function  errors.  The  error  handler   may   be	changed	  with
       MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN
       may be used to cause error values to be returned. Note  that  MPI  does
       not guarantee that an MPI program can continue past an error.

SEE ALSO
       MPI_Put

1.7.4				 Feb 04, 2014			    MPI_Get(3)
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