PrimeTesterByLastDigitAccelerator integrated into Pow2MontgomeryGpuCalculator for better performance.

PerfectNumbers.Core/Gpu/AcceleratorPool.cs

@@ -28,7 +28,7 @@ namespace PerfectNumbers.Core.Gpu
 			// Intentionally left empty - there's nothing to do here. We're not really renting anything.
 		}
 
-		public static readonly AcceleratorPool Shared = new(PerfectNumberConstants.RollingAccelerators);
+		public static readonly AcceleratorPool Shared = new(1);
 		private readonly int Capacity;
 
 		public AcceleratorPool(int capacity)
@@ -38,7 +38,20 @@ namespace PerfectNumbers.Core.Gpu
 			var device = context.GetPreferredDevice(false);
 			Context = context;
 			Device = device;
-			Accelerators = [.. Enumerable.Range(0, capacity).Select(_ => device.CreateAccelerator(context))];
+			int acceleratorsInContext = 0;
+			Accelerators = [.. Enumerable.Range(0, capacity).Select(_ =>
+			{
+				Accelerator accelerator = device.CreateAccelerator(context);
+				acceleratorsInContext++;
+				if (acceleratorsInContext >= 128)
+				{
+					context = Context.CreateDefault();
+					device = context.GetPreferredDevice(false);
+					acceleratorsInContext = 0;
+				}
+
+				return accelerator;
+			})];
 		}
 	}
 }