X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Ftimeman.cpp;h=70d35929d77cd326386d4473401deb6505ed6269;hb=c9b24c3358a26afdec5e33e369b6192039562971;hp=86e6729cd1fcf087ce6faf1402240b7364eeb80f;hpb=bacb645939397c8f4f070e46093ae764df20e34c;p=stockfish diff --git a/src/timeman.cpp b/src/timeman.cpp index 86e6729c..70d35929 100644 --- a/src/timeman.cpp +++ b/src/timeman.cpp @@ -17,21 +17,13 @@ along with this program. If not, see . */ - -//// -//// Includes -//// - #include #include "misc.h" +#include "search.h" #include "timeman.h" #include "ucioption.h" -//// -//// Local definitions -//// - namespace { /// Constants @@ -80,35 +72,32 @@ namespace { enum TimeType { OptimumTime, MaxTime }; template - int remaining(int myTime, int movesToGo, int currentPly); + int remaining(int myTime, int movesToGo, int fullMoveNumber); } -//// -//// Functions -//// - void TimeManager::pv_instability(int curChanges, int prevChanges) { unstablePVExtraTime = curChanges * (optimumSearchTime / 2) + prevChanges * (optimumSearchTime / 3); } -void TimeManager::init(int myTime, int myInc, int movesToGo, int currentPly) + +void TimeManager::init(const SearchLimits& limits, int fullMoveNumber) { /* We support four different kind of time controls: - Inc == 0 && movesToGo == 0 means: x basetime [sudden death!] - Inc == 0 && movesToGo != 0 means: (x moves) / (y minutes) - Inc > 0 && movesToGo == 0 means: x basetime + z inc. - Inc > 0 && movesToGo != 0 means: (x moves) / (y minutes) + z inc + increment == 0 && movesToGo == 0 means: x basetime [sudden death!] + increment == 0 && movesToGo != 0 means: x moves in y minutes + increment > 0 && movesToGo == 0 means: x basetime + z increment + increment > 0 && movesToGo != 0 means: x moves in y minutes + z increment Time management is adjusted by following UCI parameters: - emergencyMoveHorizon :Be prepared to always play at least this many moves - emergencyBaseTime :Always attempt to keep at least this much time (in ms) at clock - emergencyMoveTime :Plus attempt to keep at least this much time for each remaining emergency move - minThinkingTime :No matter what, use at least this much thinking before doing the move + emergencyMoveHorizon: Be prepared to always play at least this many moves + emergencyBaseTime : Always attempt to keep at least this much time (in ms) at clock + emergencyMoveTime : Plus attempt to keep at least this much time for each remaining emergency move + minThinkingTime : No matter what, use at least this much thinking before doing the move */ int hypMTG, hypMyTime, t1, t2; @@ -121,17 +110,22 @@ void TimeManager::init(int myTime, int myInc, int movesToGo, int currentPly) // Initialize to maximum values but unstablePVExtraTime that is reset unstablePVExtraTime = 0; - optimumSearchTime = maximumSearchTime = myTime; + optimumSearchTime = maximumSearchTime = limits.time; // We calculate optimum time usage for different hypothetic "moves to go"-values and choose the // minimum of calculated search time values. Usually the greatest hypMTG gives the minimum values. - for (hypMTG = 1; hypMTG <= (movesToGo ? Min(movesToGo, MoveHorizon) : MoveHorizon); hypMTG++) + for (hypMTG = 1; hypMTG <= (limits.movesToGo ? Min(limits.movesToGo, MoveHorizon) : MoveHorizon); hypMTG++) { // Calculate thinking time for hypothetic "moves to go"-value - hypMyTime = Max(myTime + (hypMTG - 1) * myInc - emergencyBaseTime - Min(hypMTG, emergencyMoveHorizon) * emergencyMoveTime, 0); + hypMyTime = limits.time + + limits.increment * (hypMTG - 1) + - emergencyBaseTime + - emergencyMoveTime * Min(hypMTG, emergencyMoveHorizon); + + hypMyTime = Max(hypMyTime, 0); - t1 = minThinkingTime + remaining(hypMyTime, hypMTG, currentPly); - t2 = minThinkingTime + remaining(hypMyTime, hypMTG, currentPly); + t1 = minThinkingTime + remaining(hypMyTime, hypMTG, fullMoveNumber); + t2 = minThinkingTime + remaining(hypMyTime, hypMTG, fullMoveNumber); optimumSearchTime = Min(optimumSearchTime, t1); maximumSearchTime = Min(maximumSearchTime, t2); @@ -144,18 +138,16 @@ void TimeManager::init(int myTime, int myInc, int movesToGo, int currentPly) optimumSearchTime = Min(optimumSearchTime, maximumSearchTime); } -//// -//// Local functions -//// namespace { template - int remaining(int myTime, int movesToGo, int currentPly) + int remaining(int myTime, int movesToGo, int fullMoveNumber) { const float TMaxRatio = (T == OptimumTime ? 1 : MaxRatio); const float TStealRatio = (T == OptimumTime ? 0 : StealRatio); + int currentPly = 2 * fullMoveNumber; int thisMoveImportance = move_importance(currentPly); int otherMovesImportance = 0;