MPI_Type_create_f90_real function
Returns a predefined type that matches the specified range.
Syntax
int MPIAPI MPI_Type_create_f90_real(
int p,
int r,
_Out_ MPI_Datatype *newtype
);
Parameters
p
Number of decimal digits in mantissa.r
Decimal exponent range desired.newtype [out]
A predefine MPI Datatype that matches the range.
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_TYPE_CREATE_F90_REAL(P, R, NEWTYPE, IERROR)
INTEGER P, R, NEWTYPE, IERROR
Remark
This function returns a predefined MPI datatype that matches a REAL variable of KIND selected_real_kind(p, r). In the model described above it returns a handle for the element D(p, r). Either p or r may be omitted from calls to selected_real_kind(p, r) (but not both). Analogously, either p or r may be set to MPI_UNDEFINED. In communication, an MPI datatype A returned by MPI_Type_create_f90_real matches a datatype B if and only if B was returned by MPI_Type_create_f90_real called with the same values for p and r or B is a duplicate of such a datatype.
If there is no corresponding type for the specified range, the call is erroneous. This implementation sets newtype to MPI_DATATYPE_NULL and returns an error of class MPI_ERR_ARG.
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 |