Factoring switched to PrimeTester.IsPrime for the best performance. PrimeOrderCalculator.PartialFactor switched to GPU factorization. Every so often it will send work to GPU instead of CPU. BatchedResources renamed to MersenneNumberDivisorByDivisorAccelerator for consistency and moved to its own file. It now uses array instead of dictionary for lookup free performance.

PerfectNumbers.Core/PrimeOrderCalculator.Gpu.cs

@@ -42,8 +42,9 @@ internal static partial class PrimeOrderCalculator
 		AcceleratorStream stream = AcceleratorStreamPool.Rent(acceleratorIndex);
 		gpu.Pow2ModEntriesToTestOnDevice.View.CopyFromCPU(stream, entries);
 
-		var kernelLauncher = gpu.CheckFactorsKernelLauncher;		
-		kernelLauncher(stream, entryCount, phi, gpu.Pow2ModEntriesToTestOnDevice.View, divisorData, gpu.OutputUlong.View);
+		// var kernelLauncher = gpu.CheckFactorsKernelLauncher;		
+		var kernel = gpu.CheckFactorsKernel;
+		kernel.Launch(stream, 1, entryCount, phi, gpu.Pow2ModEntriesToTestOnDevice.View, divisorData, gpu.OutputUlong.View);
 
 		gpu.OutputUlong.View.CopyToCPU(stream, ref order, 1);
 		stream.Synchronize();
@@ -170,9 +171,9 @@ internal static partial class PrimeOrderCalculator
 		AcceleratorStream stream = AcceleratorStreamPool.Rent(acceleratorIndex);
 		gpu.Input.View.CopyFromCPU(stream, randomStateSpan);
 
-		var kernelLauncher = gpu.PollardRhoKernelLauncher;
+		var kernel = gpu.PollardRhoKernel;
 
-		kernelLauncher(stream, n, 1, gpu.Input.View, gpu.OutputByte.View, gpu.OutputUlong.View);
+		kernel.Launch(stream, 1, n, 1, gpu.Input.View, gpu.OutputByte.View, gpu.OutputUlong.View);
 
 		gpu.OutputByte.View.CopyToCPU(stream, factoredSpan);
 		gpu.OutputUlong.View.CopyToCPU(stream, factorSpan);