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>
79 строки
2.7 KiB
Plaintext
79 строки
2.7 KiB
Plaintext
.\" -*- nroff -*-
|
|
.\" Copyright 2010 Cisco Systems, Inc. All rights reserved.
|
|
.\" Copyright 2006-2008 Sun Microsystems, Inc.
|
|
.\" Copyright (c) 1996 Thinking Machines Corporation
|
|
.\" Copyright (c) 2020 Google, LLC. All rights reserved.
|
|
.\" $COPYRIGHT$
|
|
.TH MPI_Start 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
|
|
.SH NAME
|
|
\fBMPI_Start\fP \- Initiates a communication using a persistent request handle.
|
|
|
|
.SH SYNTAX
|
|
.ft R
|
|
.SH C Syntax
|
|
.nf
|
|
#include <mpi.h>
|
|
int MPI_Start(MPI_Request *\fIrequest\fP)
|
|
|
|
.fi
|
|
.SH Fortran Syntax
|
|
.nf
|
|
USE MPI
|
|
! or the older form: INCLUDE 'mpif.h'
|
|
MPI_START(\fIREQUEST, IERROR\fP)
|
|
INTEGER \fIREQUEST, IERROR\fP
|
|
|
|
.fi
|
|
.SH Fortran 2008 Syntax
|
|
.nf
|
|
USE mpi_f08
|
|
MPI_Start(\fIrequest\fP, \fIierror\fP)
|
|
TYPE(MPI_Request), INTENT(INOUT) :: \fIrequest\fP
|
|
INTEGER, OPTIONAL, INTENT(OUT) :: \fIierror\fP
|
|
|
|
.fi
|
|
.SH INPUT PARAMETER
|
|
.ft R
|
|
.TP 1i
|
|
request
|
|
Communication request (handle).
|
|
|
|
.SH OUTPUT PARAMETER
|
|
.ft R
|
|
.TP 1i
|
|
IERROR
|
|
Fortran only: Error status (integer).
|
|
|
|
.SH DESCRIPTION
|
|
.ft R
|
|
A communication (send or receive) that uses a persistent request is initiated by the function MPI_Start.
|
|
.sp
|
|
The argument, request, is a handle returned by one of the persistent communication-request initialization functions (MPI_Send_init, MPI_Bsend_init, MPI_Ssend_init, MPI_Rsend_init, MPI_Recv_init). The associated request should be inactive and becomes active once the call is made.
|
|
.sp
|
|
If the request is for a send with ready mode, then a matching receive should be posted before the call is made. From the time the call is made until after the operation completes, the communication buffer should not be accessed.
|
|
.sp
|
|
The call is local, with semantics similar to the nonblocking communication operations (see Section 3.7 in the MPI-1 Standard, "Nonblocking Communication.") That is, a call to MPI_Start with a request created by MPI_Send_init starts a communication in the same manner as a call to MPI_Isend; a call to MPI_Start with a request created by MPI_Bsend_init starts a communication in the same manner as a call to MPI_Ibsend; and so on.
|
|
|
|
.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.
|
|
.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.
|
|
|
|
.SH SEE ALSO
|
|
.ft R
|
|
.sp
|
|
MPI_Bsend_init
|
|
.br
|
|
MPI_Rsend_init
|
|
.br
|
|
MPI_Send_init
|
|
.br
|
|
MPI_Sssend_init
|
|
.br
|
|
MPI_Recv_init
|
|
.br
|
|
MPI_Startall
|
|
|
|
|