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openmpi/ompi/mpi/man/man3/MPI_Comm_create_errhandler.3in
Ralph Castain 40a2bfa238 WARNING: Work on the temp branch being merged here encountered problems with bugs in subversion. Considerable effort has gone into validating the branch. However, not all conditions can be checked, so users are cautioned that it may be advisable to not update from the trunk for a few days to allow MTT to identify platform-specific issues.
This merges the branch containing the revamped build system based around converting autogen from a bash script to a Perl program. Jeff has provided emails explaining the features contained in the change.

Please note that configure requirements on components HAVE CHANGED. For example. a configure.params file is no longer required in each component directory. See Jeff's emails for an explanation.

This commit was SVN r23764.
2010-09-17 23:04:06 +00:00

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.\"Copyright 2009-2010 Cisco Systems, Inc. All rights reserved.
.\"Copyright 2006-2008 Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation
.TH MPI_Comm_create_errhandler 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
.SH NAME
\fBMPI_Comm_create_errhandler \fP \- Creates an error handler that can be attached to communicators.
.SH SYNTAX
.ft R
.SH C Syntax
.nf
#include <mpi.h>
int MPI_Comm_create_errhandler(MPI_Comm_errhandler_function \fI*function\fP,
MPI_Errhandler *\fIerrhandler\fP)
.SH Fortran Syntax
.nf
INCLUDE 'mpif.h'
MPI_COMM_CREATE_ERRHANDLER(\fIFUNCTION, ERRHANDLER, IERROR\fP)
EXTERNAL \fIFUNCTION\fP
INTEGER \fIERRHANDLER, IERROR\fP
.SH C++ Syntax
.nf
#include <mpi.h>
static MPI::Errhandler
MPI::Comm::Create_errhandler(MPI::Comm::Errhandler_function*
\fIfunction\fP)
.SH DEPRECATED TYPE NAME NOTE
.ft R
MPI-2.2 deprecated the MPI_Comm_errhandler_fn and
MPI::Comm::Errhandler_fn types in favor of
MPI_Comm_errhandler_function and MPI::Comm::Errhandler_function,
respectively. Open MPI supports both names (indeed, the _fn names are
typedefs to the _function names).
.SH INPUT PARAMETER
.ft R
.TP 1i
function
User-defined error handling procedure (function).
.SH OUTPUT PARAMETERS
.ft R
.TP 1i
errhandler
MPI error handler (handle).
.ft R
.TP 1i
IERROR
Fortran only: Error status (integer).
.SH DESCRIPTION
.ft R
MPI_Comm_create_errhandler creates an error handler that can be attached to communicators. This function is identical to MPI_Errhandler_create, the use of which is deprecated.
.sp
In C, the user routine should be a function of type MPI_Comm_errhandler_function, which is defined as
.sp
.nf
typedef void MPI_Comm_errhandler_function(MPI_Comm *, int *, \&...);
.fi
.sp
The first argument is the communicator in use. The second is the error code
to be returned by the MPI routine that raised the error. This typedef replaces MPI_Handler_function, the use of which is deprecated.
.sp
In Fortran, the user routine should be of this form:
.sp
.nf
SUBROUTINE COMM_ERRHANDLER_FUNCTION(COMM, ERROR_CODE, \&...)
INTEGER COMM, ERROR_CODE
.fi
.sp
In C++, the user routine should be of this form:
.sp
.nf
typedef void MPI::Comm::Errhandler_function(MPI_Comm &, int *, \&...);
.fi
.SH 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.
.sp
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.