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Man Pages


Manual Reference Pages  -  MPI_TYPE_DELETE_ATTR (3)

NAME

MPI_Type_delete_attr - Deletes a datatype-caching attribute value associated with a key.

CONTENTS

Syntax
C Syntax
Fortran Syntax
C++ Syntax
Input/output Parameter
Input Parameter
Output Parameter
Description
Notes
Errors

SYNTAX

C Syntax

#include <mpi.h>
int MPI_Type_delete_attr(MPI_Datatype type, int type_keyval)

Fortran Syntax

INCLUDE ’mpif.h’
MPI_TYPE_DELETE_ATTR(TYPE, TYPE_KEYVAL, IERROR)
        INTEGER TYPE, TYPE_KEYVAL, IERROR 

C++ Syntax

#include <mpi.h>
void MPI::Datatype::Delete_attr(int type_keyval)

INPUT/OUTPUT PARAMETER

type Data type from which the attribute is deleted (handle).n

INPUT PARAMETER

type_keyval
  Key value (integer).

OUTPUT PARAMETER

IERROR Fortran only: Error status (integer).

DESCRIPTION

MPI_Type_delete_attr deletes a datatype-caching attribute value associated with a key. This routines partially replaces MPI_Attr_delete, which is now deprecated.

NOTES

Note that it is not defined by the MPI standard what happens if the delete_fn callback invokes other MPI functions. In Open MPI, it is not valid for delete_fn callbacks (or any of their children) to add or delete attributes on the same object on which the delete_fn callback is being invoked.

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++ 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.

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1.10.2 MPI_TYPE_DELETE_ATTR (3) Jan 21, 2016

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