/// <summary>
/// Processes the go command.
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
private Task <GameEngineSearchResultCeres> ProcessGo(string command)
{
return(Task.Run(() =>
{
try
{
SearchLimit searchLimit;
// Parse the search limit
searchLimit = GetSearchLimit(command);
GameEngineSearchResultCeres result = null;
if (searchLimit != null)
{
if (searchLimit.Value > 0)
{
// Run the actual search
result = RunSearch(searchLimit);
}
}
taskSearchCurrentlyExecuting = null;
return result;
}
catch (Exception exc)
{
Console.WriteLine("Exception in Ceres engine execution:");
Console.WriteLine(exc);
Console.WriteLine(exc.StackTrace);
System.Environment.Exit(3);
return null;
}
}));
}
/// <summary>
/// Actually runs a search with specified limits.
/// </summary>
/// <param name="searchLimit"></param>
/// <returns></returns>
private GameEngineSearchResultCeres RunSearch(SearchLimit searchLimit)
{
DateTime lastInfoUpdate = DateTime.Now;
int numUpdatesSent = 0;
MCTSManager.MCTSProgressCallback callback =
(manager) =>
{
curManager = manager;
DateTime now = DateTime.Now;
float timeSinceLastUpdate = (float)(now - lastInfoUpdate).TotalSeconds;
bool isFirstUpdate = numUpdatesSent == 0;
float UPDATE_INTERVAL_SECONDS = isFirstUpdate ? 0.1f : 0.5f;
if (curManager != null && timeSinceLastUpdate > UPDATE_INTERVAL_SECONDS && curManager.Root.N > 0)
{
Send(UCIInfoString(curManager));
numUpdatesSent++;
lastInfoUpdate = now;
}
};
GameEngineCeresInProcess.ProgressCallback callbackPlain = obj => callback((MCTSManager)obj);
// use this? movesSinceNewGame
// Search from this position (possibly with tree reuse)
GameEngineSearchResultCeres result = CeresEngine.Search(curPositionAndMoves, searchLimit, gameMoveHistory, callbackPlain) as GameEngineSearchResultCeres;
GameMoveStat moveStat = new GameMoveStat(gameMoveHistory.Count,
curPositionAndMoves.FinalPosition.MiscInfo.SideToMove,
result.ScoreQ, result.ScoreCentipawns,
float.NaN, //engine1.CumulativeSearchTimeSeconds,
curPositionAndMoves.FinalPosition.PieceCount,
result.MAvg, result.FinalN, result.FinalN - result.StartingN,
searchLimit,
(float)result.TimingStats.ElapsedTimeSecs);
gameMoveHistory.Add(moveStat);
if (SearchFinishedEvent != null)
{
SearchFinishedEvent(result.Search.Manager);
}
// Send the final info string (unless this was an instamove).
Send(UCIInfoString(result.Search.Manager, result.Search.BestMoveRoot));
// Send the best move
Send("bestmove " + result.Search.BestMove.MoveStr(MGMoveNotationStyle.LC0Coordinate));
if (debug)
{
Send("info string " + result.Search.BestMoveRoot.BestMoveInfo(false));
}
return(result);
}
