Various small optimizations

PerfectNumbers.Core/PrimeTester.cs

@@ -95,49 +95,48 @@ public sealed class PrimeTester
 	[MethodImpl(MethodImplOptions.AggressiveInlining)]
 	public bool IsPrimeGpu(ulong n)
 	{
-		bool forceCpu = GpuContextPool.ForceCpu;
-		bool belowGpuRange = n < 31UL;
+		// bool belowGpuRange = n < 31UL;
 
-		if (forceCpu || belowGpuRange)
-		{
+		// if (belowGpuRange)
+		// {
 			return IsPrime(n);
-		}
+		// }
 
-		var limiter = GpuPrimeWorkLimiter.Acquire();
-		var gpu = PrimeTesterGpuContextPool.Rent(1);
-		var accelerator = gpu.Accelerator;
-		var kernel = gpu.Kernel;
+		// var limiter = GpuPrimeWorkLimiter.Acquire();
+		// var gpu = PrimeTesterGpuContextPool.Rent(1);
+		// var accelerator = gpu.Accelerator;
+		// var kernel = gpu.Kernel;
 
-		ulong value = n;
-		byte flag = 0;
+		// ulong value = n;
+		// byte flag = 0;
 
-		var input = gpu.Input;
-		var output = gpu.Output;
-		var inputView = input.View;
-		var outputView = output.View;
+		// var input = gpu.Input;
+		// var output = gpu.Output;
+		// var inputView = input.View;
+		// var outputView = output.View;
 
-		inputView.CopyFromCPU(ref value, 1);
-		kernel(
-						1,
-						inputView,
-						gpu.DevicePrimesDefault.View,
-						gpu.DevicePrimesLastOne.View,
-						gpu.DevicePrimesLastSeven.View,
-						gpu.DevicePrimesLastThree.View,
-						gpu.DevicePrimesLastNine.View,
-						gpu.DevicePrimesPow2Default.View,
-						gpu.DevicePrimesPow2LastOne.View,
-						gpu.DevicePrimesPow2LastSeven.View,
-						gpu.DevicePrimesPow2LastThree.View,
-						gpu.DevicePrimesPow2LastNine.View,
-						outputView);
-		accelerator.Synchronize();
-		outputView.CopyToCPU(ref flag, 1);
+		// inputView.CopyFromCPU(ref value, 1);
+		// kernel(
+		// 				1,
+		// 				inputView,
+		// 				gpu.DevicePrimesDefault.View,
+		// 				gpu.DevicePrimesLastOne.View,
+		// 				gpu.DevicePrimesLastSeven.View,
+		// 				gpu.DevicePrimesLastThree.View,
+		// 				gpu.DevicePrimesLastNine.View,
+		// 				gpu.DevicePrimesPow2Default.View,
+		// 				gpu.DevicePrimesPow2LastOne.View,
+		// 				gpu.DevicePrimesPow2LastSeven.View,
+		// 				gpu.DevicePrimesPow2LastThree.View,
+		// 				gpu.DevicePrimesPow2LastNine.View,
+		// 				outputView);
+		// accelerator.Synchronize();
+		// outputView.CopyToCPU(ref flag, 1);
 
-		gpu.Dispose();
-		limiter.Dispose();
+		// gpu.Dispose();
+		// limiter.Dispose();
 
-		return flag != 0;
+		// return flag != 0;
 	}
 
 	public static int GpuBatchSize { get; set; } = 262_144;
@@ -147,11 +146,6 @@ public sealed class PrimeTester
 
 	public static void WarmUpGpuKernels(int threadCount)
 	{
-		if (GpuContextPool.ForceCpu)
-		{
-			return;
-		}
-
 		int target = threadCount >> 2;
 		if (target == 0)
 		{