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Current File : //etc/alternatives/mpi/openmpi/ompi/runtime/mpiruntime.h
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2014 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) 2006-2018 Cisco Systems, Inc. All rights reserved
* Copyright (c) 2007 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2008 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2009 University of Houston. All rights reserved.
* Copyright (c) 2014 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*
* Interface into the MPI portion of the Open MPI Run Time Environment
*/
#ifndef OMPI_MPI_MPIRUNTIME_H
#define OMPI_MPI_MPIRUNTIME_H
#include "ompi_config.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_hash_table.h"
#include "opal/threads/mutex.h"
BEGIN_C_DECLS
/** forward type declaration */
struct ompi_communicator_t;
/** forward type declaration */
struct opal_thread_t;
/** forward type declaration */
struct ompi_predefined_datatype_t;
/* Global variables and symbols for the MPI layer */
/** Mutex to protect all the _init and _finalize variables */
OMPI_DECLSPEC extern opal_mutex_t ompi_mpi_bootstrap_mutex;
/** Did MPI start to initialize? */
OMPI_DECLSPEC extern volatile int32_t ompi_mpi_state;
/** Has the RTE been initialized? */
OMPI_DECLSPEC extern volatile bool ompi_rte_initialized;
/** Do we have multiple threads? */
OMPI_DECLSPEC extern bool ompi_mpi_thread_multiple;
/** Thread level requested to \c MPI_Init_thread() */
OMPI_DECLSPEC extern int ompi_mpi_thread_requested;
/** Thread level provided by Open MPI */
OMPI_DECLSPEC extern int ompi_mpi_thread_provided;
/** Identifier of the main thread */
OMPI_DECLSPEC extern struct opal_thread_t *ompi_mpi_main_thread;
/*
* State of the MPI runtime.
*
* Atomically set/read in the ompi_mpi_state global variable (for
* functions such as MPI_INITIALIZED and MPI_FINALIZED).
*/
typedef enum {
OMPI_MPI_STATE_NOT_INITIALIZED = 0,
OMPI_MPI_STATE_INIT_STARTED,
OMPI_MPI_STATE_INIT_COMPLETED,
/* The PAST_COMM_SELF_DESTRUCT state is needed because attribute
callbacks that are invoked during the very beginning of
MPI_FINALIZE are supposed to return FALSE if they call
MPI_FINALIZED. Hence, we need to distinguish between "We've
started MPI_FINALIZE" and "We're far enough in MPI_FINALIZE
that we now need to return TRUE from MPI_FINALIZED." */
OMPI_MPI_STATE_FINALIZE_STARTED,
OMPI_MPI_STATE_FINALIZE_PAST_COMM_SELF_DESTRUCT,
OMPI_MPI_STATE_FINALIZE_COMPLETED
} ompi_mpi_state_t;
/*
* These variables are for the MPI F03 bindings (F03 must bind Fortran
* varaiables to symbols; it cannot bind Fortran variables to the
* address of a C variable).
*/
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_character_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_logical_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_logical1_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_logical2_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_logical4_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_logical8_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_integer_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_integer1_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_integer2_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_integer4_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_integer8_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_integer16_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_real_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_real4_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_real8_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_real16_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_dblprec_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_cplex_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_complex8_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_complex16_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_complex32_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_dblcplex_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_2real_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_2dblprec_addr;
OMPI_DECLSPEC extern struct ompi_predefined_datatype_t *ompi_mpi_2integer_addr;
OMPI_DECLSPEC extern struct ompi_status_public_t *ompi_mpi_status_ignore_addr;
OMPI_DECLSPEC extern struct ompi_status_public_t *ompi_mpi_statuses_ignore_addr;
/** Bitflags to be used for the modex exchange for the various thread
* levels. Required to support heterogeneous environments */
#define OMPI_THREADLEVEL_SINGLE_BF 0x00000001
#define OMPI_THREADLEVEL_FUNNELED_BF 0x00000002
#define OMPI_THREADLEVEL_SERIALIZED_BF 0x00000004
#define OMPI_THREADLEVEL_MULTIPLE_BF 0x00000008
#define OMPI_THREADLEVEL_SET_BITFLAG(threadlevelin,threadlevelout) { \
if ( MPI_THREAD_SINGLE == threadlevelin ) { \
threadlevelout |= OMPI_THREADLEVEL_SINGLE_BF; \
} else if ( MPI_THREAD_FUNNELED == threadlevelin ) { \
threadlevelout |= OMPI_THREADLEVEL_FUNNELED_BF; \
} else if ( MPI_THREAD_SERIALIZED == threadlevelin ) { \
threadlevelout |= OMPI_THREADLEVEL_SERIALIZED_BF; \
} else if ( MPI_THREAD_MULTIPLE == threadlevelin ) { \
threadlevelout |= OMPI_THREADLEVEL_MULTIPLE_BF; \
}}
#define OMPI_THREADLEVEL_IS_MULTIPLE(threadlevel) (threadlevel & OMPI_THREADLEVEL_MULTIPLE_BF)
/** In ompi_mpi_init: a list of all memory associated with calling
MPI_REGISTER_DATAREP so that we can free it during
MPI_FINALIZE. */
OMPI_DECLSPEC extern opal_list_t ompi_registered_datareps;
/** In ompi_mpi_init: the lists of Fortran 90 mathing datatypes.
* We need these lists and hashtables in order to satisfy the new
* requirements introduced in MPI 2-1 Sect. 10.2.5,
* MPI_TYPE_CREATE_F90_xxxx, page 295, line 47.
*/
extern opal_hash_table_t ompi_mpi_f90_integer_hashtable;
extern opal_hash_table_t ompi_mpi_f90_real_hashtable;
extern opal_hash_table_t ompi_mpi_f90_complex_hashtable;
/** version string of ompi */
OMPI_DECLSPEC extern const char ompi_version_string[];
/**
* Determine the thread level
*
* @param requested Thread support that is requested (IN)
* @param provided Thread support that is provided (OUT)
*/
void ompi_mpi_thread_level(int requested, int *provided);
/**
* Initialize the Open MPI MPI environment
*
* @param argc argc, typically from main() (IN)
* @param argv argv, typically from main() (IN)
* @param requested Thread support that is requested (IN)
* @param provided Thread support that is provided (OUT)
* @param reinit_ok Return successfully (with no error) if someone has
* already called ompi_mpi_init().
*
* @returns MPI_SUCCESS if successful
* @returns Error code if unsuccessful
*
* Intialize all support code needed for MPI applications. This
* function should only be called by MPI applications (including
* singletons). If this function is called, ompi_init() and
* ompi_rte_init() should *not* be called.
*
* It is permissable to pass in (0, NULL) for (argc, argv).
*/
int ompi_mpi_init(int argc, char **argv, int requested, int *provided,
bool reinit_ok);
/**
* Finalize the Open MPI MPI environment
*
* @returns MPI_SUCCESS if successful
* @returns Error code if unsuccessful
*
* Should be called after all MPI functionality is complete (usually
* during MPI_FINALIZE).
*/
int ompi_mpi_finalize(void);
/**
* Abort the processes of comm
*/
OMPI_DECLSPEC int ompi_mpi_abort(struct ompi_communicator_t* comm,
int errcode);
/**
* Do a preconnect of MPI connections (i.e., force connections to
* be made if they will be made).
*/
int ompi_init_preconnect_mpi(void);
/**
* Called to disable MPI dynamic process support. It should be called
* by transports and/or environments where MPI dynamic process
* functionality cannot be supported, and provide a string indicating
* why the functionality is disabled (because it will be shown in a
* user help message). For example, "<TRANSPORT> does not support MPI
* dynamic process functionality."
*
* This first-order functionality is fairly coarse-grained and simple:
* it presents a friendly show-help message to tell users why their
* MPI dynamic process functionality failed (vs. a potentially-cryptic
* network or hardware failure message).
*
* Someone may choose to implement a more fine-grained approach in the
* future.
*/
void ompi_mpi_dynamics_disable(const char *msg);
/**
* Called by the MPI dynamic process functions (e.g., MPI_Comm_spawn)
* to see if MPI dynamic process support is enabled. If it's not,
* this function will opal_show_help() a message and return false.
*/
bool ompi_mpi_dynamics_is_enabled(const char *function);
/**
* Clean up memory / resources by the MPI dynamics process
* functionality checker
*/
void ompi_mpi_dynamics_finalize(void);
END_C_DECLS
#endif /* OMPI_MPI_MPIRUNTIME_H */
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