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openmpi/orte/mca/rml/base/base.h
Ralph Castain d70e2e8c2b Merge the ORTE devel branch into the main trunk. Details of what this means will be circulated separately.
Remains to be tested to ensure everything came over cleanly, so please continue to withhold commits a little longer

This commit was SVN r17632.
2008-02-28 01:57:57 +00:00

166 строки
4.8 KiB
C

/*
* Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2007 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*
* RML Framework maintenence interface
*
* Interface for starting / stopping / controlling the RML framework,
* as well as support for modifying RML datatypes.
*
* @note The only RML datatype exposed to the user is the RML tag.
* This will always be an integral value, so the only datatype support
* really required is the internal DSS functions for packing /
* unpacking / comparing tags. The user should never need to deal
* with these.
*/
#ifndef MCA_RML_BASE_H
#define MCA_RML_BASE_H
#include "orte_config.h"
#include "opal/mca/mca.h"
#include "orte/mca/rml/rml.h"
#include "opal/dss/dss_types.h"
BEGIN_C_DECLS
/* ******************************************************************** */
/**
* Open the RML framework
*
* Open the RML framework. Loads all available RML components and
* runs their open functions.
*
* @retval ORTE_SUCCESS Components successfully loaded
* @retval ORTE_ERROR An unknown error occurred
*/
ORTE_DECLSPEC int orte_rml_base_open(void);
/**
* Select an active RML component
*
* Select an RML component from the list of frameworks that were
* opened during orte_rml_base_open(). The orte_rml_base_select()
* function will fill in the orte_rml structure so that all functions
* in the interface exist. Note that there are still calling
* restrictions at that point (see the documentation for
* orte_rml_component_init_fn_t).
*
* All components that are not selected will be closed during this
* call.
*
* @retval ORTE_SUCCESS Components successfully selected
* @retval ORTE_ERROR An unknown error occurred
*/
ORTE_DECLSPEC int orte_rml_base_select(void);
/**
* Close the RML framework
*
* Close the RML framework, releasing all resources associated with
* the framework interface. Also closes the active component used
* during the application.
*
* @retval ORTE_SUCCESS Framework successfully shut down
*/
ORTE_DECLSPEC int orte_rml_base_close(void);
/**
* Post receive to get updates regarding contact information
*
* Post a non-blocking receive (likely during orte_init()) to receive
* updated contact information from the HNP when it becomes available.
* This should be called in any process that needs such updates, and
* the receive will continue to get update callbacks until
* orte_rml_base_comm_stop() is called.
*
* @retval ORTE_SUCCESS Receive successfully started
* @retval ORTE_ERROR An unknown error occurred
*/
ORTE_DECLSPEC int orte_rml_base_comm_start(void);
/**
* Stop receiving contact information updates
*
* Shut down the receive posted during orte_rml_base_comm_start(),
* likely during orte_finalize().
*
* @retval ORTE_SUCCESS Receive succesffully cancelled.
*/
ORTE_DECLSPEC int orte_rml_base_comm_stop(void);
/**
* Output stream for RML debugging
*
* Output stream for the opal_output() code intended for RML output.
* It will be have its verbosity set according to the MCA parameter
* rml_base_verbose. Useable between call to orte_rml_base_open() and
* orte_rml_base_close().
*/
ORTE_DECLSPEC extern int orte_rml_base_output;
/**
* List of components that are available to the RML
*
* List of components that are currently available to the RML
* framework. Useable between calls to orte_rml_base_open() and
* orte_rml_base_close().
*
* @note This list should not be used by code outside the RML base.
*/
ORTE_DECLSPEC extern opal_list_t orte_rml_base_components;
/**
* Component structure for the selected RML component
*
* Component structure pointer for the currently selected RML
* component. Useable between calls to orte_rml_base_select() and
* orte_rml_base_close().
*
* @note This pointer should not be used outside the RML base. It is
* available outside the RML base only for the F/T component.
*/
ORTE_DECLSPEC extern orte_rml_component_t *orte_rml_component;
/*
* This is the base priority for a RML wrapper component
* If there exists more than one wrapper, then the one with
* the lowest priority wins.
*/
#define RML_SELECT_WRAPPER_PRIORITY -128
END_C_DECLS
#endif /* MCA_RML_BASE_H */