mlemanczyk/even-perfect-numbers-scanner
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Most device buffers integrated into PrimeOrderCalculatorAccelerator. PrimeOrderCalculator switched to partial factoring on GPU.

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mlemanczyk committed 2025-11-26 03:16:39 +01:00
1 parent 5b48a89448
commit 13498dc460
17 files changed
+483 -432
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PerfectNumbers.Core/PrimeTester.cs
+10 -14
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@@ -91,10 +91,8 @@ public sealed class PrimeTester
public static bool IsPrimeGpu(PrimeOrderCalculatorAccelerator gpu, ulong n)
{
byte flag = 0;
var input = gpu.Input;
var inputView = input.View;
var output = gpu.OutputByte;
var outputView = output.View;
var inputView = gpu.InputView;
var outputView = gpu.OutputByteView;
int acceleratorIndex = gpu.AcceleratorIndex;
AcceleratorStream stream = AcceleratorStreamPool.Rent(acceleratorIndex);
@@ -156,10 +154,8 @@ public sealed class PrimeTester
int totalLength = values.Length;
int batchSize = GpuBatchSize;
var input = gpu.Input;
var output = gpu.OutputByte;
var inputView = input.View;
var outputView = output.View;
var inputView = gpu.InputView;
var outputView = gpu.OutputByteView;
int pos = 0;
AcceleratorStream stream = AcceleratorStreamPool.Rent(acceleratorIndex);
@@ -235,16 +231,16 @@ public sealed class PrimeTester
int acceleratorIndex = gpu.AcceleratorIndex;
gpu.EnsureCapacity(0, length);
MemoryBuffer1D<ulong, Stride1D.Dense>? inputBuffer = gpu.Input;
var inputBufferView = gpu.InputView;
var resultBufferView = gpu.OutputByteView;
var kernelLauncher = gpu.SharesFactorKernelLauncher;
AcceleratorStream stream = AcceleratorStreamPool.Rent(acceleratorIndex);
inputBuffer.View.CopyFromCPU(stream, values);
inputBufferView.CopyFromCPU(stream, values);
MemoryBuffer1D<byte, Stride1D.Dense>? resultBuffer = gpu.OutputByte;
var kernelLauncher = gpu.SharesFactorKernelLauncher;
kernelLauncher(stream, length, inputBuffer.View, resultBuffer.View);
kernelLauncher(stream, length, inputBufferView, resultBufferView);
resultBuffer.View.CopyToCPU(stream, in results);
resultBufferView.CopyToCPU(stream, in results);
stream.Synchronize();
AcceleratorStreamPool.Return(acceleratorIndex, stream);