0b8baa217d
This commit contains the following changes: The C++ bindings were removed from the standard in MPI-3.0. This commit removes the entirety of the C++ bindings as well as the support configury. Removes all references to C++ from the man pages. This includes the bindings themselves, all references to what C++ bindings return, all not-available comments, and differences between C++ and other language bindings. If the user passes --enable-mpi-cxx, --enable-mpi-cxx-seek, or --enable-cxx-exceptions, print a warning message an abort configure. Signed-off-by: Jeff Squyres <jsquyres@cisco.com> Signed-off-by: Nathan Hjelm <hjelmn@google.com>
83 строки
2.8 KiB
Plaintext
83 строки
2.8 KiB
Plaintext
.\" -*- nroff -*-
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.\" Copyright 2013 Los Alamos National Security, LLC. All rights reserved.
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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_Cart_map 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
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.SH NAME
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\fBMPI_Cart_map \fP \- Maps process to Cartesian topology information.
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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_Cart_map(MPI_Comm \fIcomm\fP, int\fI ndims\fP, const int\fI dims\fP[],
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const int\fI periods\fP[], int\fI *newrank\fP)
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.fi
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.SH Fortran Syntax
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.nf
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USE MPI
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! or the older form: INCLUDE 'mpif.h'
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MPI_CART_MAP(\fICOMM, NDIMS, DIMS, PERIODS, NEWRANK, IERROR\fP)
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INTEGER \fICOMM, NDIMS, DIMS(*), NEWRANK, IERROR\fP
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LOGICAL \fIPERIODS\fP(*)
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.fi
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.SH Fortran 2008 Syntax
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.nf
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USE mpi_f08
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MPI_Cart_map(\fIcomm\fP, \fIndims\fP, \fIdims\fP, \fIperiods\fP, \fInewrank\fP, \fIierror\fP)
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TYPE(MPI_Comm), INTENT(IN) :: \fIcomm\fP
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INTEGER, INTENT(IN) :: \fIndims\fP, \fIdims(ndims)\fP
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LOGICAL, INTENT(IN) :: \fIperiods(ndims)\fP
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INTEGER, INTENT(OUT) :: \fInewrank\fP
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INTEGER, OPTIONAL, INTENT(OUT) :: \fIierror\fP
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.fi
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.SH INPUT PARAMETERS
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.ft R
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.TP 1i
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comm
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Input communicator (handle).
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.TP 1i
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ndims
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Number of dimensions of Cartesian structure (integer).
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.TP 1i
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dims
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Integer array of size ndims specifying the number of processes in each
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coordinate direction.
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.TP 1i
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periods
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Logical array of size ndims specifying the periodicity specification in each coordinate direction.
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.SH OUTPUT PARAMETERS
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.ft R
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.TP 1i
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newrank
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Reordered rank of the calling process; MPI_UNDEFINED if calling process does not belong to grid (integer).
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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_Cart_map and MPI_Graph_map can be used to implement all other topology functions. In general they will not be called by the user directly, unless he or she is creating additional virtual topology capability other than that provided by MPI.
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.sp
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MPI_Cart_map computes an "optimal" placement for the calling process on the physical machine. A possible implementation of this function is to always return the rank of the calling process, that is, not to perform any reordering.
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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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.ft R
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.sp
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MPI_Graph_map
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