// better than the second best move.
const Value EasyMoveMargin = Value(0x150);
+ // This is the minimum interval in msec between two check_time() calls
+ const int TimerResolution = 5;
+
/// Namespace variables
// Set best timer interval to avoid lagging under time pressure. Timer is
// used to check for remaining available thinking time.
- if (TimeMgr.available_time())
- Threads.set_timer(std::min(100, std::max(TimeMgr.available_time() / 8, 20)));
+ if (Limits.use_time_management())
+ Threads.set_timer(std::min(100, std::max(TimeMgr.available_time() / 16, TimerResolution)));
else
Threads.set_timer(100);
bestMoveNeverChanged = false;
// Do we have time for the next iteration? Can we stop searching now?
- if (!Signals.stop && !Signals.stopOnPonderhit && Limits.useTimeManagement())
+ if (!Signals.stop && !Signals.stopOnPonderhit && Limits.use_time_management())
{
bool stop = false; // Local variable, not the volatile Signals.stop
// Loop through all pseudo-legal moves until no moves remain or a beta cutoff occurs
while ( bestValue < beta
&& (move = mp.next_move()) != MOVE_NONE
- && !thread.cutoff_occurred())
+ && !thread.cutoff_occurred()
+ && !Signals.stop)
{
assert(is_ok(move));
}
-/// do_timer_event() is called by the timer thread when the timer triggers. It
-/// is used to print debug info and, more important, to detect when we are out of
+/// check_time() is called by the timer thread when the timer triggers. It is
+/// used to print debug info and, more important, to detect when we are out of
/// available time and so stop the search.
-void do_timer_event() {
+void check_time() {
static int lastInfoTime;
int e = elapsed_time();
&& !Signals.failedLowAtRoot
&& e > TimeMgr.available_time();
- bool noMoreTime = e > TimeMgr.maximum_time()
+ bool noMoreTime = e > TimeMgr.maximum_time() - TimerResolution
|| stillAtFirstMove;
- if ( (Limits.useTimeManagement() && noMoreTime)
+ if ( (Limits.use_time_management() && noMoreTime)
|| (Limits.maxTime && e >= Limits.maxTime)
/* missing nodes limit */ ) // FIXME
Signals.stop = true;