mpi_info_get(3openmpi) [osx man page]

MPI_Info_get(3OpenMPI)													    MPI_Info_get(3OpenMPI)

NAME

       MPI_Info_get - Retrieves the value associated with a key in an info object.

SYNTAX

C Syntax
       #include <mpi.h>
       int MPI_Info_get(MPI_Info info, char *key, int valuelen, char *value, int *flag)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_INFO_GET(INFO, KEY, VALUELEN, VALUE, FLAG, IERROR)
	    INTEGER   INFO, VALUELEN, IERROR
	    CHARACTER*(*) KEY, VALUE
	    LOGICAL FLAG

C++ Syntax
       #include <mpi.h>
       bool MPI::Info::Get(const char* key, int valuelen,
	    char* value) const

INPUT PARAMETERS

       info	 Info object (handle).

       key	 Key (string).

       valuelen  Length of value arg (integer).

OUTPUT PARAMETER

       value	 Value (string).

       flag	 Returns true if key defined, false if not (boolean).

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION

       MPI_Info_get  retrieves	the  value  associated with key in a previous call to MPI_Info_set. If such a key exists, it sets flag to true and
       returns the value in value; otherwise it sets flag to false and leaves value unchanged. valuelen is the number of characters  available	in
       value.  If it is less than the actual size of the value, the returned value is truncated. In C, valuelen should be one less than the amount
       of allocated space to allow for the null terminator.

       If key is larger than MPI_MAX_INFO_KEY, the call is erroneous.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ func-
       tions  do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except  for
       I/O  function  errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be
       used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

SEE ALSO

       MPI_Info_create
       MPI_Info_delete
       MPI_Info_dup
       MPI_Info_free
       MPI_Info_get_valuelen
       MPI_Info_get_nkeys
       MPI_Info_get_nthkey
       MPI_Info_set

Open MPI 1.2							  September 2006					    MPI_Info_get(3OpenMPI)

Check Out this Related Man Page

MPI_Lookup_name(3OpenMPI)												 MPI_Lookup_name(3OpenMPI)

NAME

       MPI_Lookup_name - Finds port associated with a service name

SYNTAX

C Syntax
       #include <mpi.h>
       int MPI_Lookup_name(char *service_name, MPI_Info info,
	    char *port_name)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_LOOKUP_NAME(SERVICE_NAME, INFO, PORT_NAME, IERROR)
	    CHARACTER*(*)  SERVICE_NAME, PORT_NAME
	    INTEGER	   INFO, IERROR

C++ Syntax
       #include <mpi.h>
       void MPI::Lookup_name(const char *service_name, const MPI::Info& info,
	    char* port_name)

INPUT PARAMETERS

       service_name  A service name (string).

       info	     Options to the name service functions (handle). No options currently supported.

OUTPUT PARAMETERS

       port_name     a port name (string).

       IERROR	     Fortran only: Error status (integer).

DESCRIPTION

       This  function retrieves a port_name published under service_name by a previous invocation of MPI_Publish_name. The application must supply
       a port_name buffer large enough to hold the largest possible port name (i.e., MPI_MAX_PORT_NAME bytes).

       The info parameter should be MPI_INFO_NULL, as this routine does not parse any MPI Info arguments.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ func-
       tions  do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except  for
       I/O  function  errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be
       used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

       See the MPI man page for a full list of MPI error codes.

SEE ALSO

       MPI_Publish_name
       MPI_Open_port

Open MPI 1.2							    March 2007						 MPI_Lookup_name(3OpenMPI)

Linux and UNIX Man Pages

mpi_info_get(3openmpi) [osx man page]

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