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/*
* 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) 2004-2010 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/** @file:
*
* The OpenRTE Environment-Specific Services
*
*/
#ifndef ORTE_ESS_H
#define ORTE_ESS_H
#include "orte_config.h"
#include "orte/types.h"
#include "opal/mca/mca.h"
#include "orte/util/proc_info.h"
BEGIN_C_DECLS
/*
* API functions
*/
/*
* Initialize the RTE for this environment
*/
typedef int (*orte_ess_base_module_init_fn_t)(void);
/*
* Finalize the RTE for this environment
*/
typedef int (*orte_ess_base_module_finalize_fn_t)(void);
/**
* Abort the current application
*
* Aborts currently running application, NOTE: We do NOT call the
* regular C-library "abort" function, even
* though that would have alerted us to the fact that this is
* an abnormal termination, because it would automatically cause
* a core file to be generated. The "report" flag indicates if the
* function should create an appropriate file to alert the local
* orted that termination was abnormal.
*/
typedef void (*orte_ess_base_module_abort_fn_t)(int status, bool report)
__opal_attribute_noreturn_funcptr__;
/**
* Get the locality flag of the specified process
*
* MPI procs need to know whether a proc shares a common socket,
* board, node, computing unit, or cluster. This function provides
* a means for an MPI proc to query the locality of another proc.
*/
typedef uint8_t (*orte_ess_base_module_get_proc_locality_fn_t)(orte_process_name_t *proc);
/**
* Get the vpid of the daemon who hosts the specified proc
*
* In order to route messages to the correct place, the RML
* and routed modules need to know the vpid of the daemon
* that hosts the intended recipient. This API accesses
* the pidmap/nidmap to retrieve that info
*/
typedef orte_vpid_t (*orte_ess_base_module_proc_get_daemon_fn_t)(orte_process_name_t *proc);
/**
* Get the hostname where a proc resides
*
* MPI procs need to know the hostname where a specified proc resides.
* Different environments provide that info in different ways - e.g., they may
* provide a callable utility to return the answer, or download
* a map of information into each process. This API provides a
* means for each environment to do the "right thing".
*
* NOTE: To avoid memory waste, this function returns a pointer
* to a static storage. IT MUST NOT BE FREED!
*/
typedef char* (*orte_ess_base_module_proc_get_hostname_fn_t)(orte_process_name_t *proc);
/**
* Get the local rank of a remote process
*/
typedef orte_local_rank_t (*orte_ess_base_module_proc_get_local_rank_fn_t)(orte_process_name_t *proc);
/**
* Get the node rank of a remote process
*/
typedef orte_node_rank_t (*orte_ess_base_module_proc_get_node_rank_fn_t)(orte_process_name_t *proc);
/**
* Update thr pidmap
*
* When a job is dynamically launched via comm_spawn, the pre-existing daemons need to
* update their knowledge of the process map within the job so they can properly do
* things like route messages. This API allows daemons - and anyone else who wants to - to
* add a pidmap for a new job
*/
typedef int (*orte_ess_base_module_update_pidmap_fn_t)(opal_byte_object_t *bo);
/**
* Update a nidmap
*
* When a job is dynamically launched via comm_spawn, the pre-existing daemons need to
* update their knowledge of the node map that contains info on what daemon resides
* on which nodes
*/
typedef int (*orte_ess_base_module_update_nidmap_fn_t)(opal_byte_object_t *bo);
/**
* Handle fault tolerance updates
*
* @param[in] state Fault tolerance state update
*
* @retval ORTE_SUCCESS The operation completed successfully
* @retval ORTE_ERROR An unspecifed error occurred
*/
typedef int (*orte_ess_base_module_ft_event_fn_t)(int state);
/*
* the standard module data structure
*/
struct orte_ess_base_module_1_0_0_t {
orte_ess_base_module_init_fn_t init;
orte_ess_base_module_finalize_fn_t finalize;
orte_ess_base_module_abort_fn_t abort;
orte_ess_base_module_get_proc_locality_fn_t proc_get_locality;
orte_ess_base_module_proc_get_daemon_fn_t proc_get_daemon;
orte_ess_base_module_proc_get_hostname_fn_t proc_get_hostname;
orte_ess_base_module_proc_get_local_rank_fn_t get_local_rank;
orte_ess_base_module_proc_get_node_rank_fn_t get_node_rank;
orte_ess_base_module_update_pidmap_fn_t update_pidmap;
orte_ess_base_module_update_nidmap_fn_t update_nidmap;
orte_ess_base_module_ft_event_fn_t ft_event;
};
typedef struct orte_ess_base_module_1_0_0_t orte_ess_base_module_1_0_0_t;
typedef struct orte_ess_base_module_1_0_0_t orte_ess_base_module_t;
/*
* the standard component data structure
*/
struct orte_ess_base_component_2_0_0_t {
mca_base_component_t base_version;
mca_base_component_data_t base_data;
};
typedef struct orte_ess_base_component_2_0_0_t orte_ess_base_component_2_0_0_t;
typedef struct orte_ess_base_component_2_0_0_t orte_ess_base_component_t;
/*
* Macro for use in components that are of type ess
*/
#define ORTE_ESS_BASE_VERSION_2_0_0 \
MCA_BASE_VERSION_2_0_0, \
"ess", 2, 0, 0
/* Global structure for accessing ESS functions */
ORTE_DECLSPEC extern orte_ess_base_module_t orte_ess; /* holds selected module's function pointers */
END_C_DECLS
#endif
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