20c772e733
MPI-4 is finally cleaning up its language: an MPI "exception" does not actually exist. The only thing that exists is an MPI "error" (and associated handlers). This commit replaces all relevant uses of the word "exception" with "error". Note that this is still applicable in versions of the MPI standard less than MPI-4.0 (indeed, nearly all the cases fixed in this commit are just changes to comments, anyway). One exception to this is the Java bindings, where there's an MPIException class. In hindsight, it probably should have been named MPIError, but changing it now would break anyone who is using the Java bindings. Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
80 строки
2.9 KiB
Plaintext
80 строки
2.9 KiB
Plaintext
.\" -*- nroff -*-
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.\" Copyright 2010 Cisco Systems, Inc. All rights reserved.
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.\" Copyright 2006-2008 Sun Microsystems, Inc.
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.\" Copyright (c) 1996 Thinking Machines Corporation
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.\" Copyright (c) 2020 Google, LLC. All rights reserved.
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.\" $COPYRIGHT$
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.TH MPI_Errhandler_create 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
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.SH NAME
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\fBMPI_Errhandler_create \fP \- Creates an MPI-style error handler -- use of this routine is deprecated.
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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_Errhandler_create(MPI_Handler_function *\fIfunction\fP,
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MPI_Errhandler *\fIerrhandler\fP)
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.fi
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.SH Fortran Syntax
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.nf
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INCLUDE 'mpif.h'
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MPI_ERRHANDLER_CREATE(\fIFUNCTION, ERRHANDLER, IERROR\fP)
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EXTERNAL \fIFUNCTION\fP
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INTEGER \fIERRHANDLER, IERROR\fP
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.fi
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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.
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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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Note that use of this routine is \fIdeprecated\fP as of MPI-2. Please use MPI_Comm_create_errhandler instead.
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.sp
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Registers the user routine function for use as an MPI error handler. Returns in errhandler a handle to the registered error handler.
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.sp
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In the C language, the user routine should be a C function of type MPI_Handler_function, which is defined as
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.sp
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.nf
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typedef void (MPI_Handler_function)(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. If the routine would have returned MPI_ERR_IN_STATUS, it is the error code returned in the status for the request that caused the error handler to be invoked. The remaining arguments are stdargs arguments whose number and meaning is implementation-dependent. An implementation should clearly document these arguments. Addresses are used so that the handler may be written in Fortran.
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.SH NOTE
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.ft R
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The MPI-1 Standard states that an implementation may make the output value (errhandler) simply the address of the function. However, the action of MPI_Errhandler_ free makes this impossible, since it is required to set the value of the argument to MPI_ERRHANDLER_NULL. In addition, the actual error handler must remain until all communicators that use it are freed.
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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.
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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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.SH SEE ALSO
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.br
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MPI_Comm_create_errhandler
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.br
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MPI_Comm_get_errhandler
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.br
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MPI_Comm_set_errhandler
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