MPI_Type_get_name  -   Get  the  name  associated  with  a
       datatype


SYNOPSIS

       #include <mpi.h>
       int
       MPI_Type_get_name(MPI_Datatype type, char *name, int *length)


INPUT PARAMETERS

       type   - MPI datatype


OUTPUT PARAMETERS

       name   - Name of the datatype
       length - Integer length of the resulting name


NOTES

       This function returns the name of a datatype that was pre­
       viously  set  with  MPI_Type_set_name .  If a name was not
       previously associated with a datatype, the returned string
       will be empty and length will be 0.  The retuned name will
       be a maximum of MPI_MAX_OBJECT_NAME characters long.


ERRORS

       If an error occurs in an MPI  function,  the  current  MPI
       error  handler  is  called to handle it.  By default, this
       error handler aborts the MPI job.  The error  handler  may
       be  changed with MPI_Errhandler_set ; the predefined error
       handler MPI_ERRORS_RETURN may be used to cause error  val­
       ues  to  be returned (in C and Fortran; this error handler
       is less useful in with the C++ MPI bindings.   The  prede­
       fined error handler MPI::ERRORS_THROW_EXCEPTIONS should be
       used in C++ if the error value  needs  to  be  recovered).
       Note  that  MPI does not guarantee that an MPI program can
       continue past an error.

       All MPI routines (except MPI_Wtime and MPI_Wtick )  return
       an  error  value;  C routines as the value of the function
       and Fortran routines in the last argument.  The C++  bind­
       ings  for  MPI  do not return error values; instead, error
       values are communicated by  throwing  exceptions  of  type
       MPI::Exception  (but not by default).  Exceptions are only
       thrown if the error value is not MPI::SUCCESS .

       Note that if the MPI::ERRORS_RETURN handler is set in C++,
       while  MPI functions will return upon an error, there will
       be no way to recover what the actual error value was.
       MPI_SUCCESS
              - No error; MPI routine completed successfully.
       MPI_ERR_COMM
              - Invalid communicator.  A common error is to use a

              MPI_Comm_rank ).
       MPI_ERR_ARG
              - Invalid argument.  Some argument is  invalid  and
              is  not identified by a specific error class.  This
              is typically a NULL pointer or other such error.


SEE ALSO

       MPI_Comm_get_name,  MPI_Comm_set_name,  MPI_Type_set_name,
       MPI_Win_get_name, MPI_Win_set_name


MORE INFORMATION

       For  more  information,  please see the official MPI Forum
       web site, which contains the text of both  the  MPI-1  and
       MPI-2  standards.  These documents contain detailed infor­
       mation about each MPI  function  (most  of  which  is  not
       duplicated in these man pages).

       http://www.mpi-forum.org/


LOCATION

       tgetname.c


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