0c25f7be09
* Fix a counter roll-over issue that could result from a large (but
not excessive) number of outstanding put/get/accumulate calls
during a single synchronization issues (Refs trac:506)
* Fix epoch issue with rdma component that would effect PWSC
synchronization (Refs trac:507)
This commit was SVN r12673.
The following Trac tickets were found above:
Ticket 506 --> https://svn.open-mpi.org/trac/ompi/ticket/506
Ticket 507 --> https://svn.open-mpi.org/trac/ompi/ticket/507
268 строки
9.0 KiB
C
268 строки
9.0 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2006 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OMPI_OSC_RDMA_H
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#define OMPI_OSC_RDMA_H
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_free_list.h"
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#include "opal/class/opal_hash_table.h"
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#include "ompi/mca/osc/osc.h"
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#include "ompi/mca/btl/btl.h"
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#include "ompi/win/win.h"
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#include "ompi/communicator/communicator.h"
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struct ompi_osc_rdma_component_t {
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/** Extend the basic osc component interface */
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ompi_osc_base_component_t super;
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/** store the state of progress threads for this instance of OMPI */
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bool p2p_c_have_progress_threads;
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/** lock access to datastructures in the component structure */
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opal_mutex_t p2p_c_lock;
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/** List of ompi_osc_rdma_module_ts currently in existance.
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Needed so that received fragments can be dispatched to the
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correct module */
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opal_hash_table_t p2p_c_modules;
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/** free list of ompi_osc_rdma_sendreq_t structures */
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opal_free_list_t p2p_c_sendreqs;
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/** free list of ompi_osc_rdma_replyreq_t structures */
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opal_free_list_t p2p_c_replyreqs;
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/** free list of ompi_osc_rdma_longreq_t structures */
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opal_free_list_t p2p_c_longreqs;
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};
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typedef struct ompi_osc_rdma_component_t ompi_osc_rdma_component_t;
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struct ompi_osc_rdma_module_t {
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/** Extend the basic osc module interface */
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ompi_osc_base_module_t super;
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/** lock access to data structures in the current module */
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opal_mutex_t p2p_lock;
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/** lock for "atomic" window updates from reductions */
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opal_mutex_t p2p_acc_lock;
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/** pointer back to window */
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ompi_win_t *p2p_win;
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/** communicator created with this window */
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ompi_communicator_t *p2p_comm;
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/** list of ompi_osc_rdma_sendreq_t structures, and includes all
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requests for this access epoch that have not already been
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started. p2p_lock must be held when modifying this field. */
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opal_list_t p2p_pending_sendreqs;
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/** list of unsigned int counters for the number of requests to a
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particular rank in p2p_comm for this access epoc. p2p_lock
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must be held when modifying this field */
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unsigned int *p2p_num_pending_sendreqs;
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/** For MPI_Fence synchronization, the number of messages to send
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in epoch. For Start/Complete, the number of updates for this
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Complete. For lock, the number of
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messages waiting for completion on on the origin side. Not
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protected by p2p_lock - must use atomic counter operations. */
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volatile int32_t p2p_num_pending_out;
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/** For MPI_Fence synchronization, the number of expected incoming
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messages. For Post/Wait, the number of expected updates from
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complete. For lock, the number of messages on the passive side
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we are waiting for. Not protected by p2p_lock - must use
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atomic counter operations. */
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volatile int32_t p2p_num_pending_in;
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/** Number of "ping" messages from the remote post group we've
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received */
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volatile int32_t p2p_num_post_msgs;
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/** Number of "count" messages from the remote complete group
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we've received */
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volatile int32_t p2p_num_complete_msgs;
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/** cyclic counter for a unique tage for long messages. Not
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protected by the p2p_lock - must use create_send_tag() to
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create a send tag */
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volatile int32_t p2p_tag_counter;
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/** list of outstanding long messages that must be processes
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(ompi_osc_rdma_request_long). Protected by p2p_lock. */
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opal_list_t p2p_long_msgs;
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opal_list_t p2p_copy_pending_sendreqs;
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unsigned int *p2p_copy_num_pending_sendreqs;
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bool p2p_eager_send;
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/* ********************* FENCE data ************************ */
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/* an array of <sizeof(p2p_comm)> ints, each containing the value
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1. */
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int *p2p_fence_coll_counts;
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/* an array of <sizeof(p2p_comm)> unsigned ints, for use in experimenting
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with different synchronization costs */
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unsigned int *p2p_fence_coll_results;
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mca_osc_fence_sync_t p2p_fence_sync_type;
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/* ********************* PWSC data ************************ */
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struct ompi_group_t *p2p_pw_group;
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struct ompi_group_t *p2p_sc_group;
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bool *p2p_sc_remote_active_ranks;
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int *p2p_sc_remote_ranks;
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/* ********************* LOCK data ************************ */
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int32_t p2p_lock_status; /* one of 0, MPI_LOCK_EXCLUSIVE, MPI_LOCK_SHARED */
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int32_t p2p_shared_count;
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opal_list_t p2p_locks_pending;
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int32_t p2p_lock_received_ack;
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};
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typedef struct ompi_osc_rdma_module_t ompi_osc_rdma_module_t;
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/*
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* Helper macro for grabbing the module structure from a window instance
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*/
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#if OMPI_ENABLE_DEBUG
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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OMPI_MODULE_DECLSPEC extern ompi_osc_rdma_component_t mca_osc_rdma_component;
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static inline ompi_osc_rdma_module_t* P2P_MODULE(struct ompi_win_t* win)
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{
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ompi_osc_rdma_module_t *module =
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(ompi_osc_rdma_module_t*) win->w_osc_module;
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assert(module->p2p_win == win);
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return module;
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}
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#else
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#define P2P_MODULE(win) ((ompi_osc_rdma_module_t*) win->w_osc_module)
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#endif
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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OMPI_MODULE_DECLSPEC extern ompi_osc_rdma_component_t mca_osc_rdma_component;
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/*
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* Component functions
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*/
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int ompi_osc_rdma_component_init(bool enable_progress_threads,
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bool enable_mpi_threads);
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int ompi_osc_rdma_component_finalize(void);
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int ompi_osc_rdma_component_query(struct ompi_win_t *win,
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struct ompi_info_t *info,
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struct ompi_communicator_t *comm);
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int ompi_osc_rdma_component_select(struct ompi_win_t *win,
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struct ompi_info_t *info,
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struct ompi_communicator_t *comm);
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/*
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* Module interface function types
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*/
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int ompi_osc_rdma_module_free(struct ompi_win_t *win);
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int ompi_osc_rdma_module_put(void *origin_addr,
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int origin_count,
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struct ompi_datatype_t *origin_dt,
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int target,
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int target_disp,
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int target_count,
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struct ompi_datatype_t *target_dt,
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struct ompi_win_t *win);
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int ompi_osc_rdma_module_accumulate(void *origin_addr,
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int origin_count,
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struct ompi_datatype_t *origin_dt,
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int target,
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int target_disp,
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int target_count,
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struct ompi_datatype_t *target_dt,
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struct ompi_op_t *op,
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struct ompi_win_t *win);
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int ompi_osc_rdma_module_get(void *origin_addr,
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int origin_count,
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struct ompi_datatype_t *origin_dt,
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int target,
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int target_disp,
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int target_count,
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struct ompi_datatype_t *target_dt,
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struct ompi_win_t *win);
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int ompi_osc_rdma_module_fence(int assert, struct ompi_win_t *win);
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int ompi_osc_rdma_module_start(struct ompi_group_t *group,
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int assert,
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struct ompi_win_t *win);
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int ompi_osc_rdma_module_complete(struct ompi_win_t *win);
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int ompi_osc_rdma_module_post(struct ompi_group_t *group,
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int assert,
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struct ompi_win_t *win);
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int ompi_osc_rdma_module_wait(struct ompi_win_t *win);
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int ompi_osc_rdma_module_test(struct ompi_win_t *win,
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int *flag);
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int ompi_osc_rdma_module_lock(int lock_type,
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int target,
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int assert,
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struct ompi_win_t *win);
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int ompi_osc_rdma_module_unlock(int target,
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struct ompi_win_t *win);
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/*
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* passive side sync interface functions
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*/
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int ompi_osc_rdma_passive_lock(ompi_osc_rdma_module_t *module,
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int32_t origin,
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int32_t lock_type);
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int ompi_osc_rdma_passive_unlock(ompi_osc_rdma_module_t *module,
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int32_t origin,
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int32_t count);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif /* OMPI_OSC_RDMA_H */
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