1 | .\"Copyright 2007-2008 Sun Microsystems, Inc. |
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2 | .\" Copyright (c) 1996 Thinking Machines Corporation |
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3 | .TH MPI_Win_wait 3 "Dec 08, 2009" "1.4" "Open MPI" |
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4 | .SH NAME |
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5 | \fBMPI_Win_wait\fP \- Completes an RMA exposure epoch started by a call to MPI_Win_post on \fIwin\fP |
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6 | |
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7 | .SH SYNTAX |
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8 | .ft R |
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9 | .SH C Syntax |
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10 | .nf |
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11 | #include <mpi.h> |
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12 | int MPI_Win_wait(MPI_Win \fIwin\fP) |
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13 | |
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14 | .SH Fortran Syntax |
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15 | .nf |
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16 | INCLUDE 'mpif.h' |
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17 | MPI_WIN_WAIT(\fI WIN, IERROR\fP) |
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18 | INTEGER \fI WIN, IERROR\fP |
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19 | |
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20 | .SH C++ Syntax |
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21 | .nf |
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22 | #include <mpi.h> |
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23 | void MPI::Win::Wait() const |
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24 | |
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25 | .SH INPUT PARAMETERS |
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26 | .ft R |
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27 | .TP 1i |
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28 | win |
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29 | Window object (handle). |
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30 | |
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31 | .SH OUTPUT PARAMETERS |
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32 | .ft R |
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33 | .TP 1i |
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34 | IERROR |
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35 | Fortran only: Error status (integer). |
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36 | |
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37 | .SH DESCRIPTION |
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38 | .ft R |
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39 | MPI_Win_wait is a one-sided MPI communication synchronization call that completes an RMA exposure epoch started by a call to MPI_Win_post on \fIwin\fP. This |
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40 | call matches calls to MPI_Win_complete(\fIwin\fP) issued by each of the processes that |
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41 | were granted access to the window during this epoch. The call to MPI_Win_wait blocks |
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42 | until all matching calls to MPI_Win_complete have occurred. This guarantees that all |
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43 | these origin processes have completed their RMA accesses to the local window. When the |
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44 | call returns, all these RMA accesses will have completed at the target window. |
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45 | |
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46 | |
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47 | .SH ERRORS |
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48 | 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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49 | .sp |
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50 | Before the error value is returned, the current MPI error handler is |
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51 | called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Win_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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52 | |
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53 | .SH SEE ALSO |
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54 | MPI_Win_post |
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55 | .br |
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56 | |
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