mpi_attr_put(3openmpi) [osx man page]
MPI_Attr_put(3OpenMPI) MPI_Attr_put(3OpenMPI) NAME
MPI_Attr_put - Stores attribute value associated with a key -- use of this routine is deprecated. SYNTAX
C Syntax #include <mpi.h> int MPI_Attr_put(MPI_Comm comm, int keyval, void *attribute_val) Fortran Syntax INCLUDE 'mpif.h' MPI_ATTR_PUT(COMM, KEYVAL, ATTRIBUTE_VAL, IERROR) INTEGER COMM, KEYVAL, ATTRIBUTE_VAL, IERROR INPUT PARAMETERS
comm Communicator to which attribute will be attached (handle). keyval Key value, as returned by MPI_KEYVAL_CREATE (integer). attribute_val Attribute value. OUTPUT PARAMETER
IERROR Fortran only: Error status (integer). DESCRIPTION
Note that use of this routine is deprecated as of MPI-2. Please use MPI_Comm_set_attr instead. This deprecated routine is not available in C++. MPI_Attr_put stores the stipulated attribute value attribute_val for subsequent retrieval by MPI_Attr_get. If the value is already present, then the outcome is as if MPI_Attr_delete was first called to delete the previous value (and the callback function delete_fn was executed), and a new value was next stored. The call is erroneous if there is no key with value keyval; in particular MPI_KEYVAL_INVALID is an erro- neous key value. The call will fail if the delete_fn function returned an error code other than MPI_SUCCESS. NOTES
Values of the permanent attributes MPI_TAG_UB, MPI_HOST, MPI_IO, and MPI_WTIME_IS_GLOBAL may not be changed. The type of the attribute value depends on whether C or Fortran is being used. In C, an attribute value is a pointer (void *); in Fortran, it is a single integer (not a pointer, since Fortran has no pointers and there are systems for which a pointer does not fit in an integer, e.g., any 32-bit address system that uses 64 bits for Fortran DOUBLE PRECISION). If an attribute is already present, the delete function (specified when the corresponding keyval was created) will be called. 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_Comm_set_attr Open MPI 1.2 September 2006 MPI_Attr_put(3OpenMPI)
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MPI_Attr_put(3) MPI MPI_Attr_put(3) NAME
MPI_Attr_put - Stores attribute value associated with a key SYNOPSIS
int MPI_Attr_put(MPI_Comm comm, int keyval, void *attr_value) INPUT PARAMETERS
comm - communicator to which attribute will be attached (handle) keyval - key value, as returned by MPI_KEYVAL_CREATE (integer) attribute_val - attribute value NOTES
Values of the permanent attributes MPI_TAG_UB , MPI_HOST , MPI_IO , MPI_WTIME_IS_GLOBAL , MPI_UNIVERSE_SIZE , MPI_LASTUSEDCODE , and MPI_APPNUM may not be changed. The type of the attribute value depends on whether C, C++, or Fortran is being used. In C and C++, an attribute value is a pointer ( void * ); in Fortran, it is a single integer ( not a pointer, since Fortran has no pointers and there are systems for which a pointer does not fit in an integer (e.g., any > 32 bit address system that uses 64 bits for Fortran DOUBLE PRECISION ). If an attribute is already present, the delete function (specified when the corresponding keyval was created) will be called. THREAD AND INTERRUPT SAFETY
This routine is thread-safe. This means that this routine may be safely used by multiple threads without the need for any user-provided thread locks. However, the routine is not interrupt safe. Typically, this is due to the use of memory allocation routines such as malloc or other non-MPICH runtime routines that are themselves not interrupt-safe. DEPRECATED FUNCTION
The MPI-2 standard deprecated a number of routines because MPI-2 provides better versions. This routine is one of those that was depre- cated. The routine may continue to be used, but new code should use the replacement routine. The replacement for this routine is MPI_Comm_set_attr . NOTES FOR FORTRAN
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list. ierr is an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call statement. All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran. ERRORS
All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of the function and Fortran routines in the last argument. Before the value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job. The error handler may be changed with MPI_Comm_set_errhandler (for communicators), MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler (for RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but its use is deprecated. The predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarentee that an MPI program can continue past an error; however, MPI implementations will attempt to continue whenever possible. MPI_SUCCESS - No error; MPI routine completed successfully. MPI_ERR_COMM - Invalid communicator. A common error is to use a null communicator in a call (not even allowed in MPI_Comm_rank ). MPI_ERR_KEYVAL - Invalid keyval MPI_ERR_ARG - This error class is associated with an error code that indicates that an attempt was made to free one of the permanent keys. SEE ALSO
MPI_Attr_get, MPI_Keyval_create, MPI_Attr_delete, MPI_Comm_set_attr LOCATION
attr_put.c 8/23/2010 MPI_Attr_put(3)