MPI_Info_dup(3)

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

6       MPI_Info_dup -  Duplicate an MPI_Info object
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SYNOPSIS

9       #include <mpi.h>
10       int MPI_Info_dup(MPI_Info info, MPI_Info *newinfo)
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INPUT PARAMETER

13       info   - source info object (handle)
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OUTPUT PARAMETERS

17       newinfo
18              - destination info object (handle)
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NOTES

22       Not  only  will the (key, value) pairs be duplicated, the order of keys
23       will be the same in newinfo as it is in info .
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26       When an info object is no longer being used, it should  be  freed  with
27       MPI_Info_free .
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NOTES FOR FORTRAN

32       All  MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have
33       an additional argument ierr at the end of the argument list.   ierr  is
34       an  integer and has the same meaning as the return value of the routine
35       in C.  In Fortran, MPI routines are subroutines, and are  invoked  with
36       the call statement.
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38       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in
39       Fortran.
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ERRORS

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

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

85       infodup.c
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89LAM/MPI 7.1.2                      2/23/2006                   MPI_Info_dup(3)