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yap-6.3/OPTYap/or.threadengine.c

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experiment in or-parallel threads.
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/**********************************************************************
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: or.threadengine.c
version: $Id: or.engine.c,v 1.11 2008-03-25 16:45:53 vsc Exp $
**********************************************************************/
/* ------------------ **
** Includes **
** ------------------ */
#include "Yap.h"
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#if defined(THREADS) && defined(YAPOR)
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#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#include "Yatom.h"
#include "YapHeap.h"
#include "or.macros.h"
#ifdef TABLING
#include "tab.macros.h"
#else
#include "opt.mavar.h"
#endif /* TABLING */
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#define INCREMENTAL_COPYING 1
#define COMPUTE_SEGMENTS_TO_COPY_TO(Q) \
REMOTE_start_global_copy(Q) = (CELL) (REMOTE_top_cp(Q)->cp_h); \
REMOTE_end_global_copy(Q) = (CELL) (B->cp_h); \
REMOTE_start_local_copy(Q) = (CELL) (B); \
REMOTE_end_local_copy(Q) = (CELL) (REMOTE_top_cp(Q)); \
REMOTE_start_trail_copy(Q) = (CELL) (REMOTE_top_cp(Q)->cp_tr); \
REMOTE_end_trail_copy(Q) = (CELL) (TR)
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/* ------------------------------------- **
** Local functions declaration **
** ------------------------------------- */
static void share_private_nodes(int worker_q);
/* ---------------------- **
** Local macros **
** ---------------------- */
/* -------------------------- **
** Global functions **
** -------------------------- */
void make_root_choice_point(void) {
if (worker_id == 0) {
SetOrFr_node(GLOBAL_root_or_fr, B);
Set_LOCAL_top_cp(B);
Set_GLOBAL_root_cp(B);
} else {
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choiceptr imageB;
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Set_LOCAL_top_cp(Get_GLOBAL_root_cp());
B = Get_GLOBAL_root_cp();
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/*
this is tricky, we need to get the B from some other stack
and convert back to our own stack;
*/
OldLCL0 = LCL0;
LCL0 = ThreadHandle[0].current_yaam_regs->LCL0_;
imageB = Get_GLOBAL_root_cp();
/* we know B */
B->cp_tr = TR =
(tr_fr_ptr)((CELL)(imageB->cp_tr)+((CELL)OldLCL0-(CELL)LCL0));
LCL0 = OldLCL0;
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}
B->cp_h = H0;
B->cp_ap = GETWORK;
B->cp_or_fr = GLOBAL_root_or_fr;
LOCAL_top_or_fr = GLOBAL_root_or_fr;
LOCAL_load = 0;
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Set_LOCAL_prune_request(NULL);
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BRANCH(worker_id, 0) = 0;
#ifdef TABLING_INNER_CUTS
LOCAL_pruning_scope = NULL;
#endif /* TABLING_INNER_CUTS */
#ifdef TABLING
Set_LOCAL_top_cp_on_stack(Get_LOCAL_top_cp());
adjust_freeze_registers();
#endif /* TABLING */
return;
}
void free_root_choice_point(void) {
B = Get_LOCAL_top_cp()->cp_b;
#ifdef TABLING
Set_LOCAL_top_cp_on_stack(B_BASE);
#endif /* TABLING */
Set_GLOBAL_root_cp( B_BASE );
Set_LOCAL_top_cp( B_BASE );
SetOrFr_node(GLOBAL_root_or_fr, B_BASE);
return;
}
int p_share_work(void) {
int worker_q = LOCAL_share_request;
if (! BITMAP_member(OrFr_members(REMOTE_top_or_fr(worker_q)), worker_id) ||
B == REMOTE_top_cp(worker_q) ||
(LOCAL_load <= DELAYED_RELEASE_LOAD && OrFr_nearest_livenode(LOCAL_top_or_fr) == NULL)) {
/* refuse sharing request */
REMOTE_reply_signal(LOCAL_share_request) = no_sharing;
LOCAL_share_request = MAX_WORKERS;
PUT_OUT_REQUESTABLE(worker_id);
return TRUE;
}
/* sharing request accepted */
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COMPUTE_SEGMENTS_TO_COPY_TO(worker_q);
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REMOTE_q_fase_signal(worker_q) = Q_idle;
REMOTE_p_fase_signal(worker_q) = P_idle;
#ifndef TABLING
/* wait for incomplete installations */
small orp fixes.
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while (LOCAL_reply_signal != worker_ready);
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#endif /* TABLING */
LOCAL_reply_signal = sharing;
REMOTE_reply_signal(worker_q) = sharing;
share_private_nodes(worker_q);
REMOTE_reply_signal(worker_q) = nodes_shared;
while (LOCAL_reply_signal == sharing);
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while (REMOTE_reply_signal(worker_q) != worker_ready);
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LOCAL_share_request = MAX_WORKERS;
PUT_IN_REQUESTABLE(worker_id);
return TRUE;
}
int q_share_work(int worker_p) {
LOCK_OR_FRAME(LOCAL_top_or_fr);
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if (Get_REMOTE_prune_request(worker_p)) {
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/* worker p with prune request */
UNLOCK_OR_FRAME(LOCAL_top_or_fr);
return FALSE;
}
#ifdef YAPOR_ERRORS
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if (Get_OrFr_pend_prune_cp(LOCAL_top_or_fr) &&
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BRANCH_LTT(worker_p, OrFr_depth(LOCAL_top_or_fr)) < OrFr_pend_prune_ltt(LOCAL_top_or_fr))
YAPOR_ERROR_MESSAGE("prune ltt > worker_p branch ltt (q_share_work)");
#endif /* YAPOR_ERRORS */
/* there is no pending prune with worker p at right --> safe move to worker p branch */
BRANCH(worker_id, OrFr_depth(LOCAL_top_or_fr)) = BRANCH(worker_p, OrFr_depth(LOCAL_top_or_fr));
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Set_LOCAL_prune_request(NULL);
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UNLOCK_OR_FRAME(LOCAL_top_or_fr);
#ifdef OPTYAP_ERRORS
if (Get_LOCAL_top_cp() != Get_LOCAL_top_cp_on_stack())
OPTYAP_ERROR_MESSAGE("LOCAL_top_cp != LOCAL_top_cp_on_stack (q_share_work)");
if (YOUNGER_CP(B_FZ, Get_LOCAL_top_cp()))
OPTYAP_ERROR_MESSAGE("YOUNGER_CP(B_FZ, LOCAL_top_cp) (q_share_work)");
#endif /* OPTYAP_ERRORS */
#ifdef YAPOR_ERRORS
small orp fixes.
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if (LOCAL_reply_signal != worker_ready)
YAPOR_ERROR_MESSAGE("LOCAL_reply_signal != worker_ready (q_share_work)");
experiment in or-parallel threads.
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#endif /* YAPOR_ERRORS */
/* make sharing request */
LOCK_WORKER(worker_p);
if (BITMAP_member(GLOBAL_bm_idle_workers, worker_p) ||
REMOTE_share_request(worker_p) != MAX_WORKERS) {
/* worker p is idle or has another request */
UNLOCK_WORKER(worker_p);
return FALSE;
}
REMOTE_share_request(worker_p) = worker_id;
UNLOCK_WORKER(worker_p);
/* wait for an answer */
small orp fixes.
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while (LOCAL_reply_signal == worker_ready);
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if (LOCAL_reply_signal == no_sharing) {
/* sharing request refused */
small orp fixes.
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LOCAL_reply_signal = worker_ready;
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return FALSE;
}
while (LOCAL_reply_signal == sharing);
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#if INCREMENTAL_COPYING
Yap_CopyThreadStacks(worker_id, worker_p, TRUE);
#else
Yap_CopyThreadStacks(worker_id, worker_p, FALSE);
#endif
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/* update registers and return */
#ifndef TABLING
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REMOTE_reply_signal(worker_p) = worker_ready;
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#endif /* TABLING */
small orp fixes.
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LOCAL_reply_signal = worker_ready;
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PUT_IN_REQUESTABLE(worker_id);
return TRUE;
}
/* ------------------------- **
** Local functions **
** ------------------------- */
static
void share_private_nodes(int worker_q) {
choiceptr sharing_node = B;
#ifdef OPTYAP_ERRORS
if (YOUNGER_CP(Get_LOCAL_top_cp(), Get_LOCAL_top_cp_on_stack())) {
OPTYAP_ERROR_MESSAGE("YOUNGER_CP(LOCAL_top_cp, LOCAL_top_cp_on_stack) (share_private_nodes)");
} else {
choiceptr aux_cp = B;
while (aux_cp != Get_LOCAL_top_cp()) {
if (YOUNGER_CP(Get_LOCAL_top_cp(), aux_cp)) {
OPTYAP_ERROR_MESSAGE("LOCAL_top_cp not in branch (share_private_nodes)");
break;
}
if (EQUAL_OR_YOUNGER_CP(Get_LOCAL_top_cp_on_stack(), aux_cp)) {
OPTYAP_ERROR_MESSAGE("shared frozen segments in branch (share_private_nodes)");
break;
}
aux_cp = aux_cp->cp_b;
}
}
#endif /* OPTYAP_ERRORS */
#ifdef TABLING
/* check if the branch is already shared */
if (EQUAL_OR_YOUNGER_CP(Get_LOCAL_top_cp_on_stack(), sharing_node)) {
or_fr_ptr or_frame;
sg_fr_ptr sg_frame;
dep_fr_ptr dep_frame;
#ifdef OPTYAP_ERRORS
{ or_fr_ptr aux_or_fr;
aux_or_fr = LOCAL_top_or_fr;
while (aux_or_fr != REMOTE_top_or_fr(worker_q)) {
if (YOUNGER_CP(GetOrFr_node(REMOTE_top_or_fr(worker_q)), GetOrFr_node(aux_or_fr))) {
OPTYAP_ERROR_MESSAGE("YOUNGER_CP(GetOrFr_node(REMOTE_top_or_fr(worker_q)), OrFr_node(aux_or_fr)) (share_private_nodes)");
break;
}
aux_or_fr = OrFr_next_on_stack(aux_or_fr);
}
}
#endif /* OPTYAP_ERRORS */
/* update old shared nodes */
or_frame = LOCAL_top_or_fr;
while (or_frame != REMOTE_top_or_fr(worker_q)) {
LOCK_OR_FRAME(or_frame);
BRANCH(worker_q, OrFr_depth(or_frame)) = BRANCH(worker_id, OrFr_depth(or_frame));
OrFr_owners(or_frame)++;
if (BITMAP_member(OrFr_members(or_frame), worker_id))
BITMAP_insert(OrFr_members(or_frame), worker_q);
UNLOCK_OR_FRAME(or_frame);
or_frame = OrFr_next_on_stack(or_frame);
}
/* update worker Q top subgoal frame */
sg_frame = LOCAL_top_sg_fr;
while (sg_frame && YOUNGER_CP(SgFr_gen_cp(sg_frame), sharing_node)) {
sg_frame = SgFr_next(sg_frame);
}
REMOTE_top_sg_fr(worker_q) = sg_frame;
/* update worker Q top dependency frame */
dep_frame = LOCAL_top_dep_fr;
while (YOUNGER_CP(DepFr_cons_cp(dep_frame), sharing_node)) {
dep_frame = DepFr_next(dep_frame);
}
REMOTE_top_dep_fr(worker_q) = dep_frame;
/* update worker Q top shared nodes */
Set_REMOTE_top_cp_on_stack(worker_q, Get_LOCAL_top_cp());
Set_REMOTE_top_cp(worker_q, Get_LOCAL_top_cp());
REMOTE_top_or_fr(worker_q) = LOCAL_top_or_fr;
} else
#endif /* TABLING */
{
int depth;
bitmap bm_workers;
or_fr_ptr or_frame, previous_or_frame;
#ifdef TABLING
choiceptr consumer_cp, next_node_on_branch;
dep_fr_ptr dep_frame;
sg_fr_ptr sg_frame;
CELL *stack, *stack_base, *stack_limit;
/* find top dependency frame above current choice point */
dep_frame = LOCAL_top_dep_fr;
while (EQUAL_OR_YOUNGER_CP(DepFr_cons_cp(dep_frame), sharing_node)) {
dep_frame = DepFr_next(dep_frame);
}
/* initialize tabling auxiliary variables */
consumer_cp = DepFr_cons_cp(dep_frame);
next_node_on_branch = NULL;
stack_limit = (CELL *)TR;
stack_base = stack = (CELL *)Yap_TrailTop;
#endif /* TABLING */
/* initialize auxiliary variables */
BITMAP_clear(bm_workers);
BITMAP_insert(bm_workers, worker_id);
BITMAP_insert(bm_workers, worker_q);
previous_or_frame = NULL;
depth = OrFr_depth(LOCAL_top_or_fr);
/* sharing loop */
#ifdef TABLING
while (YOUNGER_CP(sharing_node, Get_LOCAL_top_cp_on_stack())) {
#else
while (sharing_node != Get_LOCAL_top_cp()) {
#endif /* TABLING */
#ifdef OPTYAP_ERRORS
if (next_node_on_branch) {
choiceptr aux_cp = B;
while (aux_cp != next_node_on_branch) {
if (sharing_node == aux_cp)
OPTYAP_ERROR_MESSAGE("sharing_node on branch (share_private_nodes)");
if (YOUNGER_CP(next_node_on_branch, aux_cp)) {
OPTYAP_ERROR_MESSAGE("next_node_on_branch not in branch (share_private_nodes)");
break;
}
aux_cp = aux_cp->cp_b;
}
} else {
choiceptr aux_cp = B;
while (aux_cp != sharing_node) {
if (YOUNGER_CP(sharing_node, aux_cp)) {
OPTYAP_ERROR_MESSAGE("sharing_node not in branch (share_private_nodes)");
break;
}
aux_cp = aux_cp->cp_b;
}
}
#endif /* OPTYAP_ERRORS */
ALLOC_OR_FRAME(or_frame);
if (previous_or_frame) {
#ifdef TABLING
OrFr_next_on_stack(previous_or_frame) =
#endif /* TABLING */
OrFr_nearest_livenode(previous_or_frame) = OrFr_next(previous_or_frame) = or_frame;
}
previous_or_frame = or_frame;
depth++;
INIT_LOCK(OrFr_lock(or_frame));
SetOrFr_node(or_frame, sharing_node);
OrFr_alternative(or_frame) = sharing_node->cp_ap;
fix one more CP field to offset.
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Set_OrFr_pend_prune_cp(or_frame, NULL);
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OrFr_nearest_leftnode(or_frame) = LOCAL_top_or_fr;
OrFr_qg_solutions(or_frame) = NULL;
#ifdef TABLING_INNER_CUTS
OrFr_tg_solutions(or_frame) = NULL;
#endif /* TABLING_INNER_CUTS */
#ifdef TABLING
OrFr_suspensions(or_frame) = NULL;
OrFr_nearest_suspnode(or_frame) = or_frame;
OrFr_owners(or_frame) = 2;
if (next_node_on_branch)
BITMAP_clear(OrFr_members(or_frame));
else
#endif /* TABLING */
OrFr_members(or_frame) = bm_workers;
#ifdef YAPOR_ERRORS
if (sharing_node->cp_ap == GETWORK || sharing_node->cp_ap == GETWORK_SEQ)
YAPOR_ERROR_MESSAGE("choicepoint already shared (share_private_nodes)");
#endif /* YAPOR_ERRORS */
if (sharing_node->cp_ap && YAMOP_SEQ(sharing_node->cp_ap)) {
sharing_node->cp_ap = GETWORK_SEQ;
} else {
sharing_node->cp_ap = GETWORK;
}
sharing_node->cp_or_fr = or_frame;
sharing_node = sharing_node->cp_b;
#ifdef TABLING
/* when next_node_on_branch is not NULL the **
** sharing_node belongs to a frozen branch. */
if (YOUNGER_CP(consumer_cp, sharing_node)) {
/* frozen stack segment */
if (! next_node_on_branch)
next_node_on_branch = sharing_node;
STACK_PUSH_UP(or_frame, stack);
STACK_CHECK_EXPAND1(stack, stack_limit, stack_base);
icompile table+orp
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STACK_PUSH_UP(sharing_node, stack); /* vsc: STACK_PUSH -> STACK_PUSH_UP? */
experiment in or-parallel threads.
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STACK_CHECK_EXPAND1(stack, stack_limit, stack_base);
sharing_node = consumer_cp;
dep_frame = DepFr_next(dep_frame);
consumer_cp = DepFr_cons_cp(dep_frame);
} else if (consumer_cp == sharing_node) {
dep_frame = DepFr_next(dep_frame);
consumer_cp = DepFr_cons_cp(dep_frame);
}
if (next_node_on_branch == sharing_node)
next_node_on_branch = NULL;
#endif /* TABLING */
#ifdef OPTYAP_ERRORS
if (next_node_on_branch && YOUNGER_CP(next_node_on_branch, sharing_node))
OPTYAP_ERROR_MESSAGE("frozen node greater than next_node_on_branch (share_private_nodes)");
#endif /* OPTYAP_ERRORS */
}
/* initialize last or-frame pointer */
or_frame = sharing_node->cp_or_fr;
if (previous_or_frame) {
#ifdef TABLING
OrFr_next_on_stack(previous_or_frame) =
#endif /* TABLING */
OrFr_nearest_livenode(previous_or_frame) = OrFr_next(previous_or_frame) = or_frame;
}
#ifdef TABLING
/* update or-frames stored in auxiliary stack */
while (STACK_NOT_EMPTY(stack, stack_base)) {
next_node_on_branch = (choiceptr) STACK_POP_DOWN(stack);
or_frame = (or_fr_ptr) STACK_POP_DOWN(stack);
OrFr_nearest_livenode(or_frame) = OrFr_next(or_frame) = next_node_on_branch->cp_or_fr;
}
#endif /* TABLING */
/* update depth */
if (depth >= MAX_BRANCH_DEPTH)
Yap_Error(INTERNAL_ERROR, TermNil, "maximum depth exceded (share_private_nodes)");
or_frame = B->cp_or_fr;
#ifdef TABLING
previous_or_frame = Get_LOCAL_top_cp_on_stack()->cp_or_fr;
while (or_frame != previous_or_frame) {
#else
while (or_frame != LOCAL_top_or_fr) {
#endif /* TABLING */
unsigned int branch;
if (OrFr_alternative(or_frame)) {
branch = YAMOP_OR_ARG(OrFr_alternative(or_frame)) + 1;
} else {
branch = 1;
}
branch |= YAMOP_CUT_FLAG; /* in doubt, assume cut */
BRANCH(worker_id, depth) = BRANCH(worker_q, depth) = branch;
OrFr_depth(or_frame) = depth--;
or_frame = OrFr_next_on_stack(or_frame);
}
#ifdef YAPOR_ERRORS
if (depth != OrFr_depth(LOCAL_top_or_fr))
YAPOR_ERROR_MESSAGE("incorrect depth value (share_private_nodes)");
#endif /* YAPOR_ERRORS */
#ifdef OPTYAP_ERRORS
{ or_fr_ptr aux_or_fr = B->cp_or_fr;
choiceptr aux_cp;
while (aux_or_fr != Get_LOCAL_top_cp_on_stack()->cp_or_fr) {
aux_cp = GetOrFr_node(aux_or_fr);
if (OrFr_next(aux_or_fr) != aux_cp->cp_b->cp_or_fr)
OPTYAP_ERROR_MESSAGE("OrFr_next not in branch (share_private_nodes)");
if (OrFr_nearest_livenode(aux_or_fr) != aux_cp->cp_b->cp_or_fr)
OPTYAP_ERROR_MESSAGE("OrFr_nearest_livenode not in branch (share_private_nodes)");
aux_or_fr = OrFr_next_on_stack(aux_or_fr);
}
aux_or_fr = B->cp_or_fr;
while (aux_or_fr != Get_LOCAL_top_cp_on_stack()->cp_or_fr) {
or_fr_ptr nearest_leftnode = OrFr_nearest_leftnode(aux_or_fr);
aux_cp = GetOrFr_node(aux_or_fr);
while (GetOrFr_node(nearest_leftnode) != aux_cp) {
if (YOUNGER_CP(GetOrFr_node(nearest_leftnode), aux_cp)) {
OPTYAP_ERROR_MESSAGE("OrFr_nearest_leftnode not in branch (share_private_nodes)");
break;
}
aux_cp = aux_cp->cp_b;
}
aux_or_fr = OrFr_next_on_stack(aux_or_fr);
}
}
#endif /* OPTYAP_ERRORS */
/* update old shared nodes */
while (or_frame != REMOTE_top_or_fr(worker_q)) {
LOCK_OR_FRAME(or_frame);
BRANCH(worker_q, OrFr_depth(or_frame)) = BRANCH(worker_id, OrFr_depth(or_frame));
#ifdef TABLING
OrFr_owners(or_frame)++;
if (BITMAP_member(OrFr_members(or_frame), worker_id))
#endif /* TABLING */
BITMAP_insert(OrFr_members(or_frame), worker_q);
UNLOCK_OR_FRAME(or_frame);
or_frame = OrFr_next_on_stack(or_frame);
}
#ifdef TABLING
/* update subgoal frames in the maintained private branches */
sg_frame = LOCAL_top_sg_fr;
while (sg_frame && YOUNGER_CP(SgFr_gen_cp(sg_frame), B)) {
choiceptr top_cp_on_branch;
top_cp_on_branch = SgFr_gen_cp(sg_frame);
while (YOUNGER_CP(top_cp_on_branch, B)) {
top_cp_on_branch = top_cp_on_branch->cp_b;
}
SgFr_gen_top_or_fr(sg_frame) = top_cp_on_branch->cp_or_fr;
sg_frame = SgFr_next(sg_frame);
}
/* update worker Q top subgoal frame */
REMOTE_top_sg_fr(worker_q) = sg_frame;
/* update subgoal frames in the recently shared branches */
while (sg_frame && YOUNGER_CP(SgFr_gen_cp(sg_frame), Get_LOCAL_top_cp_on_stack())) {
SgFr_gen_worker(sg_frame) = MAX_WORKERS;
SgFr_gen_top_or_fr(sg_frame) = SgFr_gen_cp(sg_frame)->cp_or_fr;
sg_frame = SgFr_next(sg_frame);
}
/* update dependency frames in the maintained private branches */
dep_frame = LOCAL_top_dep_fr;
while (YOUNGER_CP(DepFr_cons_cp(dep_frame), B)) {
choiceptr top_cp_on_branch;
top_cp_on_branch = DepFr_cons_cp(dep_frame);
while (YOUNGER_CP(top_cp_on_branch, B)) {
top_cp_on_branch = top_cp_on_branch->cp_b;
}
DepFr_top_or_fr(dep_frame) = top_cp_on_branch->cp_or_fr;
dep_frame = DepFr_next(dep_frame);
}
/* update worker Q top dependency frame */
REMOTE_top_dep_fr(worker_q) = dep_frame;
/* update dependency frames in the recently shared branches */
while (YOUNGER_CP(DepFr_cons_cp(dep_frame), Get_LOCAL_top_cp_on_stack())) {
DepFr_top_or_fr(dep_frame) = DepFr_cons_cp(dep_frame)->cp_or_fr;
dep_frame = DepFr_next(dep_frame);
}
#endif /* TABLING */
#ifdef OPTYAP_ERRORS
{ dep_fr_ptr aux_dep_fr = LOCAL_top_dep_fr;
while(aux_dep_fr != GLOBAL_root_dep_fr) {
choiceptr top_cp_on_branch;
top_cp_on_branch = DepFr_cons_cp(aux_dep_fr);
while (YOUNGER_CP(top_cp_on_branch, B)) {
top_cp_on_branch = top_cp_on_branch->cp_b;
}
if (top_cp_on_branch->cp_or_fr != DepFr_top_or_fr(aux_dep_fr))
OPTYAP_ERROR_MESSAGE("Error on DepFr_top_or_fr (share_private_nodes)");
aux_dep_fr = DepFr_next(aux_dep_fr);
}
}
#endif /* OPTYAP_ERRORS */
/* update top shared nodes */
#ifdef TABLING
Set_REMOTE_top_cp_on_stack(worker_q,B);
icompile table+orp
2010-01-14 17:38:39 +00:00
Set_LOCAL_top_cp_on_stack( B );
experiment in or-parallel threads.
2010-01-14 15:58:19 +00:00
#endif /* TABLING */
Set_REMOTE_top_cp(worker_q,B);
Set_LOCAL_top_cp(B);
REMOTE_top_or_fr(worker_q) = LOCAL_top_or_fr = Get_LOCAL_top_cp()->cp_or_fr;
}
#ifdef TABLING_INNER_CUTS
/* update worker Q pruning scope */
icompile table+orp
2010-01-14 17:38:39 +00:00
if (LOCAL_pruning_scope && EQUAL_OR_YOUNGER_CP(Get_LOCAL_top_cp(), LOCAL_pruning_scope)) {
experiment in or-parallel threads.
2010-01-14 15:58:19 +00:00
REMOTE_pruning_scope(worker_q) = LOCAL_pruning_scope;
PUT_IN_PRUNING(worker_q);
} else {
PUT_OUT_PRUNING(worker_q);
REMOTE_pruning_scope(worker_q) = NULL;
}
#endif /* TABLING_INNER_CUTS */
/* update worker Q prune request */
fix cut handling with threads do not compile or.threadengine unless yapor on.
2010-01-27 11:01:28 +00:00
if (Get_LOCAL_prune_request()) {
CUT_send_prune_request(worker_q, Get_LOCAL_prune_request());
experiment in or-parallel threads.
2010-01-14 15:58:19 +00:00
}
/* update load and return */
REMOTE_load(worker_q) = LOCAL_load = 0;
return;
}
#endif /* ENV_COPY */