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MPI_File_iwrite function

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Nonblocking write using individual file pointer.

Syntax

int MPIAPI MPI_File_iwrite(
        MPI_File     file,
  _In_  void         *buf,
        int          count,
        MPI_Datatype datatype,
  _Out_ MPI_Request  *request
);

Parameters

  • file
    File handle.

  • buf [in]
    Initial address of buffer.

  • count
    Number of elements in buffer.

  • datatype
    Datatype of each buffer element.

  • request [out]
    Request 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_FILE_IWRITE(FH, BUF, COUNT, DATATYPE, REQUEST, IERROR)
        <type> BUF(*)
        INTEGER FH, COUNT, DATATYPE, REQUEST, 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 File Functions