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MPI_Accumulate function

Accumulate data into the target process using remote memory access

Syntax

int MPIAPI MPI_Accumulate(
  _In_ void         *origin_addr,
       int          origin_count,
       MPI_Datatype origin_datatype,
       int          target_rank,
       MPI_Aint     target_disp,
       int          target_count,
       MPI_Datatype datatype,
       MPI_Op       op,
       MPI_Win      win
);

Parameters

  • origin_addr [in]
    initial address of buffer

  • origin_count
    number of entries in buffer

  • origin_datatype
    datatype of each buffer entry

  • target_rank
    rank of target

  • target_disp
    displacement from start of window to beginning of target buffer

  • target_count
    number of entries in target buffer

  • datatype
    datatype of each entry in target buffer

  • op
    predefined reduce operation

  • win
    window object

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_ACCUMULATE(ORIGIN_ADDR, ORIGIN_COUNT, ORIGIN_DATATYPE, TARGET_RANK,
                TARGET_DISP, TARGET_COUNT, TARGET_DATATYPE, OP, WIN, IERROR)
        <type> ORIGIN_ADDR(*)
        INTEGER(KIND=MPI_ADDRESS_KIND) TARGET_DISP
        INTEGER ORIGIN_COUNT, ORIGIN_DATATYPE,TARGET_RANK, TARGET_COUNT,
        TARGET_DATATYPE, OP, WIN, IERROR

Requirements

Product

HPC Pack 2012 MS-MPI Redistributable Package, HPC Pack 2008 R2 MS-MPI Redistributable Package, HPC Pack 2008 MS-MPI Redistributable Package or HPC Pack 2008 Client Utilities

Header

 Mpi.h; Mpif.h

Library

 Msmpi.lib

DLL

 Msmpi.dll

See also

MPI One-Sided Communications Functions