17.4. Deprecated since MPI-4.1

• The use of the mpif.h include file has been deprecated. Information supporting the transition to USE mpi or USE mpi_f08 is provided in Section Fortran Support Through the mpif.h Include File.

• The predefined attribute key MPI_HOST for MPI_COMM_WORLD when using the World Model is deprecated.

  MPI_HOST:

  Host process rank, if such exists, MPI_PROC_NULL, otherwise.

  
  

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  Host Rank

  
  Up: Deprecated since MPI-4.1 Next: Removed Interfaces Previous: Deprecated since MPI-4.1

  The value returned for MPI_HOST gets the rank of the HOST process in the group associated with communicator MPI_COMM_WORLD, if there is such. MPI_PROC_NULL is returned if there is no host. MPI does not specify what it means for a process to be a HOST, nor does it requires that a HOST exists.

  The attribute MPI_HOST has the same value on all processes of MPI_COMM_WORLD.

  	Environmental inquiry keys
  C type: const int (or unnamed enum)
  Fortran type: INTEGER
  MPI_HOST

• All MPI_ XXX_X procedures have been deprecated and may be removed in a future version of the MPI specification. In the case of their C binding and their Fortran binding through the mpi_f08 module, they are superseded by the large count and large byte displacement bindings of their counterpart in the form of MPI_ XXX.

  MPI_TYPE_SIZE_X(datatype, size)
  IN datatype	datatype to get information on (handle)
  OUT size	datatype size (integer)

  C binding
  int MPI_Type_size_x(MPI_Datatype datatype, MPI_Count *size)
  Fortran 2008 binding
  MPI_Type_size_x(datatype, size, ierror)
  
  TYPE(MPI_Datatype), INTENT(IN) :: datatype
  INTEGER(KIND=MPI_COUNT_KIND), INTENT(OUT) :: size
  INTEGER, OPTIONAL, INTENT(OUT) :: ierror
  Fortran binding
  MPI_TYPE_SIZE_X(DATATYPE, SIZE, IERROR)
  
  INTEGER DATATYPE, IERROR
  INTEGER(KIND=MPI_COUNT_KIND) SIZE
  

  The description of MPI_TYPE_SIZE is applicable to this deprecated MPI_TYPE_SIZE_X accordingly, see Section Address and Size Procedures.

  MPI_TYPE_GET_EXTENT_X(datatype, lb, extent)
  IN datatype	datatype to get information on (handle)
  OUT lb	lower bound of datatype (integer)
  OUT extent	extent of datatype (integer)

  C binding
  int MPI_Type_get_extent_x(MPI_Datatype datatype, MPI_Count *lb, MPI_Count *extent)
  Fortran 2008 binding
  MPI_Type_get_extent_x(datatype, lb, extent, ierror)
  
  TYPE(MPI_Datatype), INTENT(IN) :: datatype
  INTEGER(KIND=MPI_COUNT_KIND), INTENT(OUT) :: lb, extent
  INTEGER, OPTIONAL, INTENT(OUT) :: ierror
  Fortran binding
  MPI_TYPE_GET_EXTENT_X(DATATYPE, LB, EXTENT, IERROR)
  
  INTEGER DATATYPE, IERROR
  INTEGER(KIND=MPI_COUNT_KIND) LB, EXTENT
  

  The description of MPI_TYPE_GET_EXTENT is applicable to this deprecated MPI_TYPE_GET_EXTENT_X accordingly, see Section Extent and Bounds of Datatypes.

  MPI_TYPE_GET_TRUE_EXTENT_X(datatype, true_lb, true_extent)
  IN datatype	datatype to get information on (handle)
  OUT true_lb	true lower bound of datatype (integer)
  OUT true_extent	true extent of datatype (integer)

  C binding
  int MPI_Type_get_true_extent_x(MPI_Datatype datatype, MPI_Count *true_lb, MPI_Count *true_extent)
  Fortran 2008 binding
  MPI_Type_get_true_extent_x(datatype, true_lb, true_extent, ierror)
  
  TYPE(MPI_Datatype), INTENT(IN) :: datatype
  INTEGER(KIND=MPI_COUNT_KIND), INTENT(OUT) :: true_lb, true_extent
  INTEGER, OPTIONAL, INTENT(OUT) :: ierror
  Fortran binding
  MPI_TYPE_GET_TRUE_EXTENT_X(DATATYPE, TRUE_LB, TRUE_EXTENT, IERROR)
  
  INTEGER DATATYPE, IERROR
  INTEGER(KIND=MPI_COUNT_KIND) TRUE_LB, TRUE_EXTENT
  

  The description of MPI_TYPE_GET_TRUE_EXTENT is applicable to this deprecated MPI_TYPE_GET_TRUE_EXTENT_X accordingly, see Section True Extent of Datatypes.

  MPI_GET_ELEMENTS_X(status, datatype, count)
  IN status	return status of receive operation (status)
  IN datatype	datatype used by receive operation (handle)
  OUT count	number of received basic elements (integer)

  C binding
  int MPI_Get_elements_x(const MPI_Status *status, MPI_Datatype datatype, MPI_Count *count)
  Fortran 2008 binding
  MPI_Get_elements_x(status, datatype, count, ierror)
  
  TYPE(MPI_Status), INTENT(IN) :: status
  TYPE(MPI_Datatype), INTENT(IN) :: datatype
  INTEGER(KIND=MPI_COUNT_KIND), INTENT(OUT) :: count
  INTEGER, OPTIONAL, INTENT(OUT) :: ierror
  Fortran binding
  MPI_GET_ELEMENTS_X(STATUS, DATATYPE, COUNT, IERROR)
  
  INTEGER STATUS(MPI_STATUS_SIZE), DATATYPE, IERROR
  INTEGER(KIND=MPI_COUNT_KIND) COUNT
  

  The description of MPI_GET_ELEMENTS is applicable to this deprecated MPI_GET_ELEMENTS_X accordingly, see Section Use of General Datatypes in Communication.

  MPI_STATUS_SET_ELEMENTS_X(status, datatype, count)
  INOUT status	status with which to associate count (status)
  IN datatype	datatype associated with count (handle)
  IN count	number of elements to associate with status (integer)

  C binding
  int MPI_Status_set_elements_x(MPI_Status *status, MPI_Datatype datatype, MPI_Count count)
  Fortran 2008 binding
  MPI_Status_set_elements_x(status, datatype, count, ierror)
  
  TYPE(MPI_Status), INTENT(INOUT) :: status
  TYPE(MPI_Datatype), INTENT(IN) :: datatype
  INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN) :: count
  INTEGER, OPTIONAL, INTENT(OUT) :: ierror
  Fortran binding
  MPI_STATUS_SET_ELEMENTS_X(STATUS, DATATYPE, COUNT, IERROR)
  
  INTEGER STATUS(MPI_STATUS_SIZE), DATATYPE, IERROR
  INTEGER(KIND=MPI_COUNT_KIND) COUNT
  

  The description of MPI_STATUS_SET_ELEMENTS is applicable to this deprecated MPI_STATUS_SET_ELEMENTS_X accordingly, see Section Associating Information with Status.