63 lines
1.9 KiB
Groff
63 lines
1.9 KiB
Groff
.\" -*- 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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.\" $COPYRIGHT$
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.TH MPI_Info_set 3 "Mar 26, 2019" "4.0.1" "Open MPI"
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.SH NAME
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\fBMPI_Info_set\fP \- Adds a key/value pair to \fIinfo\fP.
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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_Info_set(MPI_Info \fIinfo\fP, char \fI*key\fP, char \fI*value\fP)
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.fi
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.SH INPUT/OUTPUT PARAMETER
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.ft R
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.TP 1i
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info
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Info object (handle).
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.SH INPUT PARAMETERS
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.ft R
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.TP 1i
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key
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Key (string).
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.ft R
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.TP 1i
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value
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Value (string).
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.SH OUTPUT PARAMETER
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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_Info_set adds the (key,value) pair to \fIinfo\fP and overrides the value if a value for the same key was previously set. The \fIkey\fP and \fIvalue\fP parameters are null-terminated strings in C. In Fortran, leading and trailing spaces in \fIkey\fP and \fIvalue\fP are stripped. If either \fIkey\fP or \fIvalue\fP is larger than the allowed maximums, the error MPI_ERR_INFO_KEY or MPI_ERR_INFO_VALUE is raised, respectively.
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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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.SH SEE ALSO
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.ft r
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MPI_Info_create
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.br
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MPI_Info_delete
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.br
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MPI_Info_dup
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.br
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MPI_Info_free
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.br
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MPI_Info_set
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.br
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