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       MPI_Publish_name -  Publish a service name for dynamic process control


       #include <mpi.h>
       MPI_Publish_name(char *service_name, MPI_Info info, char *port_name)


              - a service name to associate with the port
       info   - implementation-specific information
              - a port name from MPI_Open_port


       Currently,  LAM/MPI  ignores  any  info  keys  that  are passed to this
       function.  As such, info keys specific to  a  different  implementation
       can  safely be passed to this function.  Additionally, the MPI constant
       MPI_INFO_NULL can also be used.

       The scope of the published name is the LAM universe  --  MPI  processes
       running  on  any  node included from the initial lamboot are capable of
       retrieving a name published by MPI_Publish_name .  Service  names  stay
       in   existence   until   they   are   either   manually   removed  with
       MPI_Unpublish_name or cleaned with  the  lamclean  command.   It  is  a
       common mistake to forget to MPI_Unpublish_name at the end of a run, and
       therefore leave published names in the LAM runtime environment.


       All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK )  have
       an  additional  argument ierr at the end of the argument list.  ierr is
       an integer and has the same meaning as the return value of the  routine
       in  C.   In Fortran, MPI routines are subroutines, and are invoked with
       the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in


       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
       values  to  be  returned  (in C and Fortran; this error handler is less
       useful in with the C++ MPI  bindings.   The  predefined  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++  bindings  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.
              - No error; MPI routine completed successfully.
              - 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.
              - This error  class  is  associated  with  an  error  code  that
              indicates  that  there  was a problem with the service name that
              was used.  Depending on the context, this can indicate that  the
              service  name was already published or that the service name was
              not yet published.


       MPI_Lookup_name, MPI_Unpublish_name


       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 information about each MPI function (most of
       which is not duplicated in these man pages).