/********************************************************************** The OPTYap Prolog system OPTYap extends the Yap Prolog system to support or-parallel tabling Copyright: R. Rocha and NCC - University of Porto, Portugal File: opt.structs.h version: $Id: opt.structs.h,v 1.9 2005-08-04 15:45:55 ricroc Exp $ **********************************************************************/ /* ----------------- ** ** Typedefs ** ** ----------------- */ typedef double realtime; typedef unsigned long bitmap; /* ---------------------------- ** ** Struct page_header ** ** ---------------------------- */ typedef struct page_header { volatile int structs_in_use; void *first_free_struct; struct page_header *previous; struct page_header *next; } *pg_hd_ptr; #define PgHd_str_in_use(X) ((X)->structs_in_use) #define PgHd_free_str(X) ((X)->first_free_struct) #define PgHd_previous(X) ((X)->previous) #define PgHd_next(X) ((X)->next) /* ---------------------- ** ** Struct pages ** ** ---------------------- */ struct pages { #ifdef YAPOR lockvar lock; #endif /* YAPOR */ volatile long pages_allocated; volatile long structs_in_use; int structs_per_page; struct page_header *first_free_page; }; #define Pg_lock(X) ((X).lock) #define Pg_pg_alloc(X) ((X).pages_allocated) #define Pg_str_in_use(X) ((X).structs_in_use) #define Pg_str_per_pg(X) ((X).structs_per_page) #define Pg_free_pg(X) ((X).first_free_page) #define Pg_str_free(X) (Pg_pg_alloc(X) * Pg_str_per_pg(X) - Pg_str_in_use(X)) /* ----------------------------- ** ** Struct global_pages ** ** ----------------------------- */ struct global_pages { #ifdef LIMIT_TABLING int max_pages; #endif /* LIMIT_TABLING */ struct pages void_pages; #ifdef YAPOR struct pages or_frame_pages; struct pages query_goal_solution_frame_pages; struct pages query_goal_answer_frame_pages; #endif /* YAPOR */ #ifdef TABLING_INNER_CUTS struct pages table_subgoal_solution_frame_pages; struct pages table_subgoal_answer_frame_pages; #endif /* TABLING_INNER_CUTS */ #ifdef TABLING struct pages table_entry_pages; struct pages subgoal_frame_pages; struct pages subgoal_trie_node_pages; struct pages answer_trie_node_pages; struct pages subgoal_hash_pages; struct pages answer_hash_pages; struct pages dependency_frame_pages; #endif /* TABLING */ #if defined(YAPOR) && defined(TABLING) struct pages suspension_frame_pages; #endif /* YAPOR && TABLING */ }; /* ----------------------------- ** ** Struct global_locks ** ** ----------------------------- */ #ifdef YAPOR struct global_locks { lockvar bitmap_idle_workers; lockvar bitmap_root_cp_workers; lockvar bitmap_invisible_workers; lockvar bitmap_requestable_workers; lockvar bitmap_executing_workers; lockvar bitmap_finished_workers; #ifdef TABLING_INNER_CUTS lockvar bitmap_pruning_workers; #endif /* TABLING_INNER_CUTS */ lockvar who_locked_heap; lockvar heap_access; lockvar alloc_block; #if defined(YAPOR_ERRORS) || defined(TABLING_ERRORS) lockvar stderr_messages; #endif /* YAPOR_ERRORS || TABLING_ERRORS */ }; #endif /* YAPOR */ /* ---------------------------- ** ** Struct global_data ** ** ---------------------------- */ struct global_data{ /* global data related to memory management */ struct global_pages pages; #ifdef YAPOR /* global static data */ int scheduler_loop; int delayed_release_load; int number_workers; int worker_pid[MAX_WORKERS]; #ifdef ACOW int master_worker; #endif /* ACOW */ /* global data related to or-performance */ realtime execution_time; realtime best_execution_times[MAX_BEST_TIMES]; int number_of_executed_goals; char performance_mode; /* PERFORMANCE_OFF / PERFORMANCE_ON / PERFORMANCE_IN_EXECUTION */ /* global data related to or-parallelism */ choiceptr root_choice_point; struct or_frame *root_or_frame; bitmap present_workers; volatile bitmap idle_workers; volatile bitmap root_cp_workers; volatile bitmap invisible_workers; volatile bitmap requestable_workers; volatile bitmap executing_workers; volatile bitmap finished_workers; #ifdef TABLING_INNER_CUTS volatile bitmap pruning_workers; #endif /* TABLING_INNER_CUTS */ struct global_locks locks; volatile unsigned int branch[MAX_WORKERS][MAX_DEPTH]; volatile char parallel_execution_mode; /* TRUE / FALSE */ volatile int answers; #endif /* YAPOR */ #ifdef TABLING /* global data related to tabling */ struct table_entry *root_table_entry; #ifdef LIMIT_TABLING struct subgoal_frame *first_subgoal_frame; struct subgoal_frame *last_subgoal_frame; struct subgoal_frame *check_subgoal_frame; #endif /* LIMIT_TABLING */ struct dependency_frame *root_dependency_frame; CELL table_var_enumerator[MAX_TABLE_VARS]; #ifdef TABLE_LOCK_AT_WRITE_LEVEL lockvar table_lock[TABLE_LOCK_BUCKETS]; #endif /* TABLE_LOCK_AT_WRITE_LEVEL */ #ifdef TIMESTAMP_CHECK long timestamp; #endif /* TIMESTAMP_CHECK */ #endif /* TABLING */ }; #define GLOBAL_MAX_PAGES (GLOBAL.pages.max_pages) #define GLOBAL_PAGES_void (GLOBAL.pages.void_pages) #define GLOBAL_PAGES_or_fr (GLOBAL.pages.or_frame_pages) #define GLOBAL_PAGES_qg_sol_fr (GLOBAL.pages.query_goal_solution_frame_pages) #define GLOBAL_PAGES_qg_ans_fr (GLOBAL.pages.query_goal_answer_frame_pages) #define GLOBAL_PAGES_tg_sol_fr (GLOBAL.pages.table_subgoal_solution_frame_pages) #define GLOBAL_PAGES_tg_ans_fr (GLOBAL.pages.table_subgoal_answer_frame_pages) #define GLOBAL_PAGES_tab_ent (GLOBAL.pages.table_entry_pages) #define GLOBAL_PAGES_sg_fr (GLOBAL.pages.subgoal_frame_pages) #define GLOBAL_PAGES_sg_node (GLOBAL.pages.subgoal_trie_node_pages) #define GLOBAL_PAGES_ans_node (GLOBAL.pages.answer_trie_node_pages) #define GLOBAL_PAGES_sg_hash (GLOBAL.pages.subgoal_hash_pages) #define GLOBAL_PAGES_ans_hash (GLOBAL.pages.answer_hash_pages) #define GLOBAL_PAGES_dep_fr (GLOBAL.pages.dependency_frame_pages) #define GLOBAL_PAGES_susp_fr (GLOBAL.pages.suspension_frame_pages) #define SCHEDULER_LOOP (GLOBAL.scheduler_loop) #define DELAYED_RELEASE_LOAD (GLOBAL.delayed_release_load) #define number_workers (GLOBAL.number_workers) #define worker_pid(worker) (GLOBAL.worker_pid[worker]) #define GLOBAL_master_worker (GLOBAL.master_worker) #define GLOBAL_execution_time (GLOBAL.execution_time) #define GLOBAL_best_times(time) (GLOBAL.best_execution_times[time]) #define GLOBAL_number_goals (GLOBAL.number_of_executed_goals) #define GLOBAL_performance_mode (GLOBAL.performance_mode) #define GLOBAL_root_cp (GLOBAL.root_choice_point) #define GLOBAL_root_or_fr (GLOBAL.root_or_frame) #define GLOBAL_bm_present_workers (GLOBAL.present_workers) #define GLOBAL_bm_idle_workers (GLOBAL.idle_workers) #define GLOBAL_bm_root_cp_workers (GLOBAL.root_cp_workers) #define GLOBAL_bm_invisible_workers (GLOBAL.invisible_workers) #define GLOBAL_bm_requestable_workers (GLOBAL.requestable_workers) #define GLOBAL_bm_executing_workers (GLOBAL.executing_workers) #define GLOBAL_bm_finished_workers (GLOBAL.finished_workers) #define GLOBAL_bm_pruning_workers (GLOBAL.pruning_workers) #define GLOBAL_LOCKS_bm_idle_workers (GLOBAL.locks.bitmap_idle_workers) #define GLOBAL_LOCKS_bm_root_cp_workers (GLOBAL.locks.bitmap_root_cp_workers) #define GLOBAL_LOCKS_bm_invisible_workers (GLOBAL.locks.bitmap_invisible_workers) #define GLOBAL_LOCKS_bm_requestable_workers (GLOBAL.locks.bitmap_requestable_workers) #define GLOBAL_LOCKS_bm_executing_workers (GLOBAL.locks.bitmap_executing_workers) #define GLOBAL_LOCKS_bm_finished_workers (GLOBAL.locks.bitmap_finished_workers) #define GLOBAL_LOCKS_bm_pruning_workers (GLOBAL.locks.bitmap_pruning_workers) #define GLOBAL_LOCKS_who_locked_heap (GLOBAL.locks.who_locked_heap) #define GLOBAL_LOCKS_heap_access (GLOBAL.locks.heap_access) #define GLOBAL_LOCKS_alloc_block (GLOBAL.locks.alloc_block) #define GLOBAL_LOCKS_stderr_messages (GLOBAL.locks.stderr_messages) #define GLOBAL_branch(worker, depth) (GLOBAL.branch[worker][depth]) #define PARALLEL_EXECUTION_MODE (GLOBAL.parallel_execution_mode) #define GLOBAL_answers (GLOBAL.answers) #define GLOBAL_root_tab_ent (GLOBAL.root_table_entry) #define GLOBAL_first_sg_fr (GLOBAL.first_subgoal_frame) #define GLOBAL_last_sg_fr (GLOBAL.last_subgoal_frame) #define GLOBAL_check_sg_fr (GLOBAL.check_subgoal_frame) #define GLOBAL_root_dep_fr (GLOBAL.root_dependency_frame) #define GLOBAL_table_var_enumerator(index) (GLOBAL.table_var_enumerator[index]) #define GLOBAL_table_lock(index) (GLOBAL.table_lock[index]) #define GLOBAL_timestamp (GLOBAL.timestamp) /* ------------------------------ ** ** Struct local_signals ** ** ------------------------------ */ #ifdef YAPOR struct local_signals{ #ifdef ENV_COPY lockvar lock; volatile enum { Q_idle = 0, trail = 1, global = 2, local = 3, P_idle = 4 } P_fase, Q_fase; #endif /* ENV_COPY */ volatile enum { no_sharing = 0, sharing = 1, nodes_shared = 2, copy_done = 3, ready = 4 } reply; }; #endif /* YAPOR */ /* --------------------------- ** ** Struct local_data ** ** --------------------------- */ struct local_data{ #ifdef YAPOR /* local data related to or-parallelism */ lockvar lock; volatile int load; choiceptr top_choice_point; struct or_frame *top_or_frame; choiceptr prune_request; volatile int share_request; struct local_signals share_signals; volatile struct { CELL start; CELL end; } global_copy, local_copy, trail_copy; #endif /* YAPOR */ #ifdef TABLING /* local data related to tabling */ struct answer_trie_node *next_free_answer_trie_node; struct subgoal_frame *top_subgoal_frame; struct dependency_frame *top_dependency_frame; #ifdef TABLING_INNER_CUTS choiceptr bottom_pruning_scope; #endif /* TABLING_INNER_CUTS */ #ifdef YAPOR choiceptr top_choice_point_on_stack; struct or_frame *top_or_frame_with_suspensions; #endif /* YAPOR */ #endif /* TABLING */ }; extern struct local_data *LOCAL; #define LOCAL_lock (LOCAL->lock) #define LOCAL_load (LOCAL->load) #define LOCAL_top_cp (LOCAL->top_choice_point) #define LOCAL_top_or_fr (LOCAL->top_or_frame) #define LOCAL_prune_request (LOCAL->prune_request) #define LOCAL_share_request (LOCAL->share_request) #define LOCAL_reply_signal (LOCAL->share_signals.reply) #define LOCAL_p_fase_signal (LOCAL->share_signals.P_fase) #define LOCAL_q_fase_signal (LOCAL->share_signals.Q_fase) #define LOCAL_lock_signals (LOCAL->share_signals.lock) #define LOCAL_start_global_copy (LOCAL->global_copy.start) #define LOCAL_end_global_copy (LOCAL->global_copy.end) #define LOCAL_start_local_copy (LOCAL->local_copy.start) #define LOCAL_end_local_copy (LOCAL->local_copy.end) #define LOCAL_start_trail_copy (LOCAL->trail_copy.start) #define LOCAL_end_trail_copy (LOCAL->trail_copy.end) #define LOCAL_next_free_ans_node (LOCAL->next_free_answer_trie_node) #define LOCAL_top_sg_fr (LOCAL->top_subgoal_frame) #define LOCAL_top_dep_fr (LOCAL->top_dependency_frame) #define LOCAL_pruning_scope (LOCAL->bottom_pruning_scope) #define LOCAL_top_cp_on_stack (LOCAL->top_choice_point_on_stack) #define LOCAL_top_susp_or_fr (LOCAL->top_or_frame_with_suspensions) #define REMOTE_lock(worker) (REMOTE[worker].lock) #define REMOTE_load(worker) (REMOTE[worker].load) #define REMOTE_top_cp(worker) (REMOTE[worker].top_choice_point) #define REMOTE_top_or_fr(worker) (REMOTE[worker].top_or_frame) #define REMOTE_prune_request(worker) (REMOTE[worker].prune_request) #define REMOTE_share_request(worker) (REMOTE[worker].share_request) #define REMOTE_reply_signal(worker) (REMOTE[worker].share_signals.reply) #define REMOTE_p_fase_signal(worker) (REMOTE[worker].share_signals.P_fase) #define REMOTE_q_fase_signal(worker) (REMOTE[worker].share_signals.Q_fase) #define REMOTE_lock_signals(worker) (REMOTE[worker].share_signals.lock) #define REMOTE_start_global_copy(worker) (REMOTE[worker].global_copy.start) #define REMOTE_end_global_copy(worker) (REMOTE[worker].global_copy.end) #define REMOTE_start_local_copy(worker) (REMOTE[worker].local_copy.start) #define REMOTE_end_local_copy(worker) (REMOTE[worker].local_copy.end) #define REMOTE_start_trail_copy(worker) (REMOTE[worker].trail_copy.start) #define REMOTE_end_trail_copy(worker) (REMOTE[worker].trail_copy.end) #define REMOTE_next_free_ans_node(worker) (REMOTE[worker].next_free_answer_trie_node) #define REMOTE_top_sg_fr(worker) (REMOTE[worker].top_subgoal_frame) #define REMOTE_top_dep_fr(worker) (REMOTE[worker].top_dependency_frame) #define REMOTE_pruning_scope(worker) (REMOTE[worker].bottom_pruning_scope) #define REMOTE_top_cp_on_stack(worker) (REMOTE[worker].top_choice_point_on_stack) #define REMOTE_top_susp_or_fr(worker) (REMOTE[worker].top_or_frame_with_suspensions) #ifdef YAPOR #include "or.structs.h" #endif /* YAPOR */ #ifdef TABLING #include "tab.structs.h" #endif /* TABLING */