public ThreadMaster(ArtemisEngine engine, GameState gameState, TranspositionTable transpositionTable, IEngineConfig config)
{
this.gameState = gameState;
this.transpositionTable = transpositionTable;
this.config = config;
threadsNum = Environment.ProcessorCount;
searchThreads = new SearchThread[threadsNum];
for (int t = 0; t < threadsNum; t++)
{
GameState threadState = new GameState(gameState.PregeneratedAttacks, gameState.ZobristHashUtils);
searchThreads[t] = new SearchThread(engine, this, threadState, transpositionTable, searchedNodes, config);
}
}
public async Task <PVList> Search(CancellationToken ct)
{
Stopwatch watch = new Stopwatch();
watch.Start();
List <Task <PVList> > tasks = new List <Task <PVList> >();
int currentThreadsNum = config.Multithreading ? threadsNum : 1;
for (int t = 0; t < currentThreadsNum; t++)
{
SearchThread thread = searchThreads[t];
thread.LoadState(gameState);
Task <PVList> engineTask = Task.Run(() => thread.Search(1, ct));
tasks.Add(engineTask);
}
PVList[] foundPV = await Task.WhenAll(tasks);
PVList bestPV = new PVList();
SearchThread bestThread = null;
for (int i = 0; i < foundPV.Length; i++)
{
if (foundPV[i] != null && foundPV[i].First != null && foundPV[i] > bestPV)
{
bestPV = foundPV[i];
bestThread = searchThreads[i];
}
}
watch.Stop();
bestThread.SearchStats.Time = watch.ElapsedMilliseconds;
string statsJson = JsonConvert.SerializeObject(bestThread.SearchStats);
Console.WriteLine(statsJson);
Console.WriteLine(bestPV);
searchedNodes.Clear();
return(bestPV);
}
