diff --git a/StgSharpDebug/Program.cs b/StgSharpDebug/Program.cs
index 1df2f825..81cc177e 100644
--- a/StgSharpDebug/Program.cs
+++ b/StgSharpDebug/Program.cs
@@ -25,6 +25,7 @@
 //     
 // -----------------------------------------------------------------------
 // -----------------------------------------------------------------------
+using StgSharp.HighPerformance.Memory;
 using StgSharp.Internal;
 using StgSharp.Mathematics.Numeric;
 
@@ -47,10 +48,12 @@ namespace StgSharp
                 // TestRender();
                 // TestHlsf();
 
-                HlsfStressTest.Run();
-                /*
-                HybridLayerSegregatedFitAllocator hlsf = new HybridLayerSegregatedFitAllocator((nuint)(64 * (ulong)10000 * 10000));
-
+                // HlsfStressTest.Run();
+                /**/
+                HybridLayerSegregatedFitAllocator hlsf;
+                unchecked {
+                    hlsf = new((nuint)(64 * (ulong)10000 * 10000));
+                }
                 Matrix<float> m = Matrix.FromHlsf<float>(1000, 1000, hlsf);
                 MatrixCompute.Fill(m, 1.0f);
 
@@ -64,7 +67,8 @@ namespace StgSharp
                     for (int j = 0; j < 2; j++)
                     {
                         MatrixCompute.Add(n, m, n);
-                        Console.WriteLine($"{i} {j}");
+
+                        // Console.WriteLine($"{i} {j}");
                     }
                     GC.Collect();
                 }