Pass TT from outside

lynx-chess · Nov 11, 2024 · 5fb483d · 5fb483d
1 parent 3d01404
commit 5fb483d
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/src/Lynx.Cli/Program.cs b/src/Lynx.Cli/Program.cs
@@ -1,5 +1,6 @@
 using Lynx;
 using Lynx.Cli;
+using Lynx.Model;
 using Lynx.UCI.Commands.Engine;
 using Microsoft.Extensions.Configuration;
 using NLog;
@@ -32,7 +33,10 @@
 using CancellationTokenSource source = new();
 CancellationToken cancellationToken = source.Token;
 
-var engine = new Engine(engineChannel);
+var ttLength = TranspositionTableExtensions.CalculateLength(Configuration.EngineSettings.TranspositionTableSize);
+var tt = GC.AllocateArray<TranspositionTableElement>(ttLength, pinned: true);
+
+var engine = new Engine(engineChannel, tt);
 var uciHandler = new UCIHandler(uciChannel, engineChannel, engine);
 
 var tasks = new List<Task>

diff --git a/src/Lynx/Engine.cs b/src/Lynx/Engine.cs
@@ -50,7 +50,7 @@ public sealed partial class Engine
     private CancellationTokenSource _searchCancellationTokenSource;
     private CancellationTokenSource _absoluteSearchCancellationTokenSource;
 
-    public Engine(ChannelWriter<object> engineWriter)
+    public Engine(ChannelWriter<object> engineWriter, TranspositionTable tt)
     {
         AverageDepth = 0;
         Game = new Game(Constants.InitialPositionFEN);
@@ -73,7 +73,7 @@ public Engine(ChannelWriter<object> engineWriter)
             _killerMoves[i] = new Move[3];
         }
 
-        AllocateTT();
+        _tt = tt;
 
 #if !DEBUG
         // Temporary channel so that no output is generated