1MPI_Win_get_group(3)                LAM/MPI               MPI_Win_get_group(3)
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NAME

6       MPI_Win_get_group -  Returns a duplicate of the group of a window
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SYNOPSIS

9       #include <mpi.h>
10       int MPI_Win_get_group(MPI_Win win, MPI_Group *group)
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INPUT PARAMETERS

13       win    - window object (handle)
14       group  - group of processes which share access to the window (handle)
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NOTES

18       MPI_WIN_GET_GROUP  returns a duplicate of the group of the communicator
19       used to create the window. associated with win. The group  is  returned
20       in group.
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NOTES FOR FORTRAN

24       All  MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have
25       an additional argument ierr at the end of the argument list.   ierr  is
26       an  integer and has the same meaning as the return value of the routine
27       in C.  In Fortran, MPI routines are subroutines, and are  invoked  with
28       the call statement.
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30       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in
31       Fortran.
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USAGE WITH IMPI EXTENSIONS

34       The IMPI standard only supports MPI-1 functions.  Hence, this  function
35       is currently not designed to operate within an IMPI job.
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ERRORS

39       If an error occurs in an MPI function, the current MPI error handler is
40       called to handle it.  By default, this error  handler  aborts  the  MPI
41       job.   The  error  handler may be changed with MPI_Errhandler_set ; the
42       predefined error handler MPI_ERRORS_RETURN may be used to  cause  error
43       values  to  be  returned  (in C and Fortran; this error handler is less
44       useful in with the C++ MPI  bindings.   The  predefined  error  handler
45       MPI::ERRORS_THROW_EXCEPTIONS  should  be used in C++ if the error value
46       needs to be recovered).  Note that MPI does not guarantee that  an  MPI
47       program can continue past an error.
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49       All  MPI  routines  (except  MPI_Wtime  and MPI_Wtick ) return an error
50       value; C routines as the value of the function and Fortran routines  in
51       the  last  argument.  The C++ bindings for MPI do not return error val‐
52       ues; instead, error values are communicated by throwing  exceptions  of
53       type  MPI::Exception  (but not by default).  Exceptions are only thrown
54       if the error value is not MPI::SUCCESS .
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57       Note that if the MPI::ERRORS_RETURN handler is set in  C++,  while  MPI
58       functions  will  return  upon an error, there will be no way to recover
59       what the actual error value was.
60       MPI_SUCCESS
61              - No error; MPI routine completed successfully.
62       MPI_ERR_WIN
63              - Invalid window.  A common error is to use a null window  in  a
64              call.
65       MPI_ERR_ARG
66              - Invalid argument.  Some argument is invalid and is not identi‐
67              fied by a specific  error  class.   This  is  typically  a  NULL
68              pointer or other such error.
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SEE ALSO

72       MPI_Put(3),     MPI_Get(3),     MPI_Win_create(3),    MPI_Win_start(3),
73       MPI_Win_complete(3),  MPI_Win_fence(3),  MPI_Win_free(3),   MPI_Accumu‐
74       late(3), MPI_Win_get_group(3), MPI_Win_wait(3)
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MORE INFORMATION

78       For more information, please see the official MPI Forum web site, which
79       contains the text of both the MPI-1 and MPI-2 standards.   These  docu‐
80       ments  contain  detailed  information  about each MPI function (most of
81       which is not duplicated in these man pages).
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83       http://www.mpi-forum.org/
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LOCATION

86       wgroup.c
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90LAM/MPI 7.1.2                      2/23/2006              MPI_Win_get_group(3)
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