mpi_type_create_hvector(3openmpi) [osx man page]
MPI_Type_create_hvector(3OpenMPI) MPI_Type_create_hvector(3OpenMPI) NAME
MPI_Type_create_hvector - Creates a vector (strided) data type with offset in bytes. SYNTAX
C Syntax #include <mpi.h> int MPI_Type_create_hvector(int count, int blocklength, MPI_Aint stride, MPI_Datatype oldtype, MPI_Datatype *newtype) Fortran Syntax (see FORTRAN 77 NOTES) INCLUDE 'mpif.h' MPI_TYPE_CREATE_HVECTOR(COUNT, BLOCKLENGTH, STRIDE, OLDTYPE, NEWTYPE, IERROR) INTEGER COUNT, BLOCKLENGTH, OLDTYPE, NEWTYPE, IERROR INTEGER(KIND=MPI_ADDRESS_KIND) STRIDE C++ Syntax #include <mpi.h> MPI::Datatype MPI::Datatype::Create_hvector(int count, int blocklength, MPI::Aint stride) const INPUT PARAMETERS
count Number of blocks (nonnegative integer). blocklength Number of elements in each block (nonnegative integer). stride Number of bytes between start of each block (integer). oldtype Old data type (handle). OUTPUT PARAMETERS
newtype New data type (handle). IERROR Fortran only: Error status (integer). DESCRIPTION
MPI_Type_create_hvector creates a vector (strided) data type with offset in bytes. NOTE - This routine replaces MPI_Type_hvector, which is deprecated. See the man page MPI_Type_hvector(3) for information about that rou- tine. FORTRAN 77 NOTES The MPI standard prescribes portable Fortran syntax for the STRIDE argument only for Fortran 90. FORTRAN 77 users may use the non-portable syntax INTEGER*MPI_ADDRESS_KIND STRIDE 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_Type_hvector MPI_Type_vector Open MPI 1.2 September 2006 MPI_Type_create_hvector(3OpenMPI)
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MPI_Type_create_resized(3OpenMPI) MPI_Type_create_resized(3OpenMPI) NAME
MPI_Type_create_resized - Returns a new data type with new extent and upper and lower bounds. SYNTAX
C Syntax #include <mpi.h> int MPI_Type_create_resized(MPI_Datatype oldtype, MPI_Aint lb, MPI_Aint extent, MPI_Datatype *newtype) Fortran Syntax (see FORTRAN 77 NOTES) INCLUDE 'mpif.h' MPI_TYPE_CREATE_RESIZED(OLDTYPE, LB, EXTENT, NEWTYPE, IERROR) INTEGER OLDTYPE, NEWTYPE, IERROR INTEGER(KIND=MPI_ADDRESS_KIND) LB, EXTENT C++ Syntax #include <mpi.h> MPI::Datatype MPI::Datatype::Create_resized(const MPI::Aint lb, const MPI::Aint extent) const INPUT PARAMETERS
oldtype Input data type (handle). lb New lower bound of data type (integer). extent New extent of data type (integer). OUTPUT PARAMETERS
newtype Output data type (handle). IERROR Fortran only: Error status (integer). DESCRIPTION
MPI_Type_create_resized returns in newtype a handle to a new data type that is identical to oldtype, except that the lower bound of this new data type is set to be lb, and its upper bound is set to be lb + extent. Any previous lb and ub markers are erased, and a new pair of lower bound and upper bound markers are put in the positions indicated by the lb and extent arguments. This affects the behavior of the data type when used in communication operations, with count > 1, and when used in the construction of new derived data types. FORTRAN 77 NOTES The MPI standard prescribes portable Fortran syntax for the LB and EXTENT arguments only for Fortran 90. FORTRAN 77 users may use the non- portable syntax INTEGER*MPI_ADDRESS_KIND LB or INTEGER*MPI_ADDRESS_KIND EXTENT where MPI_ADDRESS_KIND is a constant defined in mpif.h and gives the length of the declared integer in bytes. NOTE
Use of MPI_Type_create_resized is strongly recommended over the old MPI-1 functions MPI_Type_extent and MPI_Type_lb. 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_Type_get_extent Open MPI 1.2 September 2006 MPI_Type_create_resized(3OpenMPI)