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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2006 The Trustees of the University of Tennessee.
* 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 (c) 2010 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_OSC_PT2PT_H
#define OMPI_OSC_PT2PT_H
#include "ompi_config.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_free_list.h"
#include "opal/class/opal_hash_table.h"
#include "opal/threads/threads.h"
#include "ompi/win/win.h"
#include "ompi/communicator/communicator.h"
#include "ompi/mca/osc/osc.h"
BEGIN_C_DECLS
#define CONTROL_MSG_TAG (-200)
struct ompi_osc_pt2pt_component_t {
/** Extend the basic osc component interface */
ompi_osc_base_component_t super;
/** store the state of progress threads for this instance of OMPI */
bool p2p_c_have_progress_threads;
/** lock access to datastructures in the component structure */
opal_mutex_t p2p_c_lock;
/** List of active modules (windows) */
opal_hash_table_t p2p_c_modules;
/** max size of eager message */
size_t p2p_c_eager_size;
/** Lock for request management */
opal_mutex_t p2p_c_request_lock;
/** Condition variable for request management */
opal_condition_t p2p_c_request_cond;
/** free list of ompi_osc_pt2pt_sendreq_t structures */
opal_free_list_t p2p_c_sendreqs;
/** free list of ompi_osc_pt2pt_replyreq_t structures */
opal_free_list_t p2p_c_replyreqs;
/** free list of ompi_osc_pt2pt_longreq_t structures */
opal_free_list_t p2p_c_longreqs;
/** free list for eager / control meessages */
opal_free_list_t p2p_c_buffers;
/** list of outstanding requests, of type ompi_osc_pt2pt_mpireq_t */
opal_list_t p2p_c_pending_requests;
#if OPAL_ENABLE_PROGRESS_THREADS
opal_thread_t p2p_c_thread;
bool p2p_c_thread_run;
#endif
};
typedef struct ompi_osc_pt2pt_component_t ompi_osc_pt2pt_component_t;
struct ompi_osc_pt2pt_module_t {
/** Extend the basic osc module interface */
ompi_osc_base_module_t super;
/** lock access to data structures in the current module */
opal_mutex_t p2p_lock;
/** condition variable for access to current module */
opal_condition_t p2p_cond;
/** lock for "atomic" window updates from reductions */
opal_mutex_t p2p_acc_lock;
/** pointer back to window */
ompi_win_t *p2p_win;
/** communicator created with this window */
ompi_communicator_t *p2p_comm;
/** list of ompi_osc_pt2pt_sendreq_t structures, and includes all
requests for this access epoch that have not already been
started. p2p_lock must be held when modifying this field. */
opal_list_t p2p_pending_sendreqs;
/** list of unsigned int counters for the number of requests to a
particular rank in p2p_comm for this access epoc. p2p_lock
must be held when modifying this field */
unsigned int *p2p_num_pending_sendreqs;
/** For MPI_Fence synchronization, the number of messages to send
in epoch. For Start/Complete, the number of updates for this
Complete. For lock, the number of
messages waiting for completion on on the origin side. Not
protected by p2p_lock - must use atomic counter operations. */
int32_t p2p_num_pending_out;
/** For MPI_Fence synchronization, the number of expected incoming
messages. For Post/Wait, the number of expected updates from
complete. For lock, the number of messages on the passive side
we are waiting for. Not protected by p2p_lock - must use
atomic counter operations. */
int32_t p2p_num_pending_in;
/** Number of "ping" messages from the remote post group we've
received */
int32_t p2p_num_post_msgs;
/** Number of "count" messages from the remote complete group
we've received */
int32_t p2p_num_complete_msgs;
/** cyclic counter for a unique tag for long messages. Not
protected by the p2p_lock - must use create_send_tag() to
create a send tag */
volatile int32_t p2p_tag_counter;
opal_list_t p2p_copy_pending_sendreqs;
unsigned int *p2p_copy_num_pending_sendreqs;
/* ********************* FENCE data ************************ */
/* an array of <sizeof(p2p_comm)> ints, each containing the value
1. */
int *p2p_fence_coll_counts;
/* ********************* PWSC data ************************ */
struct ompi_group_t *p2p_pw_group;
struct ompi_group_t *p2p_sc_group;
bool *p2p_sc_remote_active_ranks;
int *p2p_sc_remote_ranks;
/* ********************* LOCK data ************************ */
int32_t p2p_lock_status; /* one of 0, MPI_LOCK_EXCLUSIVE, MPI_LOCK_SHARED */
int32_t p2p_shared_count;
opal_list_t p2p_locks_pending;
opal_list_t p2p_unlocks_pending;
int32_t p2p_lock_received_ack;
};
typedef struct ompi_osc_pt2pt_module_t ompi_osc_pt2pt_module_t;
OMPI_MODULE_DECLSPEC extern ompi_osc_pt2pt_component_t mca_osc_pt2pt_component;
/**
* Helper macro for grabbing the module structure from a window instance
*/
#define P2P_MODULE(win) ((ompi_osc_pt2pt_module_t*) win->w_osc_module)
/*
* Component functions
*/
int ompi_osc_pt2pt_component_init(bool enable_progress_threads,
bool enable_mpi_threads);
int ompi_osc_pt2pt_component_finalize(void);
int ompi_osc_pt2pt_component_query(struct ompi_win_t *win,
struct ompi_info_t *info,
struct ompi_communicator_t *comm);
int ompi_osc_pt2pt_component_select(struct ompi_win_t *win,
struct ompi_info_t *info,
struct ompi_communicator_t *comm);
int ompi_osc_pt2pt_component_progress(void);
/*
* Module interface function types
*/
int ompi_osc_pt2pt_module_free(struct ompi_win_t *win);
int ompi_osc_pt2pt_module_put(void *origin_addr,
int origin_count,
struct ompi_datatype_t *origin_dt,
int target,
OPAL_PTRDIFF_TYPE target_disp,
int target_count,
struct ompi_datatype_t *target_dt,
struct ompi_win_t *win);
int ompi_osc_pt2pt_module_accumulate(void *origin_addr,
int origin_count,
struct ompi_datatype_t *origin_dt,
int target,
OPAL_PTRDIFF_TYPE target_disp,
int target_count,
struct ompi_datatype_t *target_dt,
struct ompi_op_t *op,
struct ompi_win_t *win);
int ompi_osc_pt2pt_module_get(void *origin_addr,
int origin_count,
struct ompi_datatype_t *origin_dt,
int target,
OPAL_PTRDIFF_TYPE target_disp,
int target_count,
struct ompi_datatype_t *target_dt,
struct ompi_win_t *win);
int ompi_osc_pt2pt_module_fence(int assert, struct ompi_win_t *win);
int ompi_osc_pt2pt_module_start(struct ompi_group_t *group,
int assert,
struct ompi_win_t *win);
int ompi_osc_pt2pt_module_complete(struct ompi_win_t *win);
int ompi_osc_pt2pt_module_post(struct ompi_group_t *group,
int assert,
struct ompi_win_t *win);
int ompi_osc_pt2pt_module_wait(struct ompi_win_t *win);
int ompi_osc_pt2pt_module_test(struct ompi_win_t *win,
int *flag);
int ompi_osc_pt2pt_module_lock(int lock_type,
int target,
int assert,
struct ompi_win_t *win);
int ompi_osc_pt2pt_module_unlock(int target,
struct ompi_win_t *win);
/*
* passive side sync interface functions
*/
int ompi_osc_pt2pt_passive_lock(ompi_osc_pt2pt_module_t *module,
int32_t origin,
int32_t lock_type);
int ompi_osc_pt2pt_passive_unlock(ompi_osc_pt2pt_module_t *module,
int32_t origin,
int32_t count);
int ompi_osc_pt2pt_passive_unlock_complete(ompi_osc_pt2pt_module_t *module);
END_C_DECLS
#endif /* OMPI_OSC_PT2PT_H */
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