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RedHat 9 (Linux i386) - man page for mpi_lookup_name (redhat section 3)

MPI_Lookup_name(3)			     LAM/MPI			       MPI_Lookup_name(3)

NAME
       MPI_Lookup_name -  Lookup a previously published name

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

INPUT PARAMETERS
       service_name
	      - a service name
       info   - implementation-specific information
       port_name
	      - a port name from MPI_Open_port

NOTES
       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.   Addi-
       tionally, 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_Pub-
       lish_name
	.  Service names stay in existence until they are either manually removed with MPI_Unpub-
       lish_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.

NOTES FOR FORTRAN
       All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argu-
       ment 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 Fortran.

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 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 excep-
       tions 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_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.
       MPI_ERR_SERVICE
	      - 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.

SEE ALSO
       MPI_Lookup_name, MPI_Publish_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 information about
       each MPI function (most of which is not duplicated in these man pages).

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

LOCATION
       nameunpub.c

LAM/MPI 6.5.8				    11/10/2002			       MPI_Lookup_name(3)


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