MPI_Type_create_struct − Creates a structured data type.
#include
<mpi.h>
int MPI_Type_create_struct(int count, int
array_of_blocklengths[],
const MPI_Aint array_of_displacements[], const MPI_Datatype array_of_types[], | ||
MPI_Datatype *newtype) |
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_TYPE_CREATE_STRUCT(COUNT,
ARRAY_OF_BLOCKLENGTHS,
ARRAY_OF_DISPLACEMENTS, ARRAY_OF_TYPES, NEWTYPE, IERROR) |
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INTEGER |
COUNT, ARRAY_OF_BLOCKLENGTHS(*), ARRAY_OF_TYPES(*), | |||
INTEGER NEWTYPE, IERROR |
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INTEGER(KIND=MPI_ADDRESS_KIND) ARRAY_OF_DISPLACEMENTS(*) |
USE mpi_f08
MPI_Type_create_struct(count,
array_of_blocklengths,
array_of_displacements, array_of_types, newtype, ierror) | |||
INTEGER, INTENT(IN) :: count, array_of_blocklengths(count) |
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INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN) :: |
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array_of_displacements(count) |
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TYPE(MPI_Datatype), INTENT(IN) :: array_of_types(count) |
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TYPE(MPI_Datatype), INTENT(OUT) :: newtype |
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INTEGER, OPTIONAL, INTENT(OUT) :: ierror |
count |
Number of blocks (integer) -- also number of entries in arrays array_of_types, array_of_displacements, and array_of_blocklengths. |
array_of_blocklengths
Number of elements in each block (array of integers).
array_of_displacements
Byte displacement of each block (array of integers).
array_of_types
Type of elements in each block (array of handles to data-type objects).
newtype |
New data type (handle). |
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IERROR |
Fortran only: Error status (integer). |
MPI_Type_create_struct creates a structured data type. This routine replaces MPI_Type_struct, which is now deprecated.
NOTE − This routine replaces MPI_Type_struct, which is deprecated. See the man page MPI_Type_struct(3) for information about that routine.
The MPI standard prescribes portable Fortran syntax for the ARRAY_OF_DISPLACEMENTS(*) argument only for Fortran 90. FORTRAN 77 users may use the non-portable syntax
INTEGER*MPI_ADDRESS_KIND ARRAY_OF_DISPLACEMENTS(*)
where MPI_ADDRESS_KIND is a constant defined in mpif.h and gives the length of the declared integer in bytes.
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions 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.
MPI_Type_struct
MPI_Type_create_hindexed