79 строки
2.5 KiB
Groff
79 строки
2.5 KiB
Groff
.\"Copyright 2006, Sun Microsystems, Inc.
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.\" Copyright (c) 1996 Thinking Machines Corporation
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.TH MPI_Comm_create_errhandler 3OpenMPI "September 2006" "Open MPI 1.2" " "
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.SH NAME
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\fBMPI_Comm_create_errhandler \fP \- Creates an error handler that can be attached to communicators.
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.SH SYNTAX
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.ft R
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.SH C Syntax
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.nf
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#include <mpi.h>
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int MPI_Comm_create_errhandler(MPI_Comm_errhandler_fn \fI*function\fP,
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MPI_Errhandler *\fIerrhandler\fP)
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.SH Fortran Syntax
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.nf
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INCLUDE 'mpif.h'
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MPI_COMM_CREATE_ERRHANDLER(\fIFUNCTION, ERRHANDLER, IERROR\fP)
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EXTERNAL \fIFUNCTION\fP
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INTEGER \fIERRHANDLER, IERROR\fP
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.SH C++ Syntax
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.nf
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#include <mpi.h>
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static MPI::Errhandler
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MPI::Comm::Create_errhandler(MPI::Comm::Errhandler_fn*
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\fIfunction\fP)
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.SH INPUT PARAMETER
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.ft R
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.TP 1i
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function
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User-defined error handling procedure (function).
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.SH OUTPUT PARAMETERS
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.ft R
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.TP 1i
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errhandler
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MPI error handler (handle).
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.ft R
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.TP 1i
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IERROR
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Fortran only: Error status (integer).
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.SH DESCRIPTION
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.ft R
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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.
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.sp
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In C, the user routine should be a function of type MPI_Comm_errhandler_fn, which is defined as
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.sp
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.nf
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typedef void MPI_Comm_errhandler_fn(MPI_Comm *, int *, \&...);
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.fi
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.sp
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The first argument is the communicator in use. The second is the error code
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to be returned by the MPI routine that raised the error. This typedef replaces MPI_Handler_function, the use of which is deprecated.
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.sp
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In Fortran, the user routine should be of this form:
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.sp
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.nf
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SUBROUTINE COMM_ERRHANDLER_FN(COMM, ERROR_CODE, \&...)
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INTEGER COMM, ERROR_CODE
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.fi
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.sp
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In C++, the user routine should be of this form:
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.sp
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.nf
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typedef void MPI::Comm::Errhandler_fn(MPI_Comm &, int *, \&...);
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.fi
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.SH ERRORS
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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.
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.sp
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Before the error value is returned, the current MPI error handler is
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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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