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Refine GPU residue prime tables

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Marek Lemańczyk committed 2025-09-17 17:35:26 +02:00
1 parent 88d0c9c271
commit 34cc0b0fdd
5 files changed
+209 -99
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PerfectNumbers.Core/Gpu/MersenneNumberIncrementalGpuTester.cs
+3 -4
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@@ -27,11 +27,10 @@ public class MersenneNumberIncrementalGpuTester(GpuKernelType kernelType, bool u
ulong step5 = ((exponent % 5UL) << 1) % 5UL;
GpuUInt128 twoPGpu = (GpuUInt128)twoP;
var smallCyclesView = GpuKernelPool.EnsureSmallCyclesOnDevice(accelerator);
ArrayView1D<uint, Stride1D.Dense> smallPrimesView = default;
ArrayView1D<ulong, Stride1D.Dense> smallPrimesPow2View = default;
ResiduePrimeViews primeViews = default;
if (_kernelType == GpuKernelType.Pow2Mod)
{
(smallPrimesView, smallPrimesPow2View) = GpuKernelPool.EnsureSmallPrimesOnDevice(accelerator);
primeViews = GpuKernelPool.EnsureSmallPrimesOnDevice(accelerator);
}
var orderBuffer = accelerator.Allocate1D<ulong>(batchSize);
@@ -56,7 +55,7 @@ public class MersenneNumberIncrementalGpuTester(GpuKernelType kernelType, bool u
q0.Mod10_8_5_3(out ulong q0m10, out ulong q0m8, out ulong q0m5, out ulong q0m3);
var ra = new ResidueAutomatonArgs(q0m10, step10, q0m8, step8, q0m3, step3, q0m5, step5);
pow2Kernel(currentSize, exponent, twoPGpu, (GpuUInt128)kStart, last, divMul,
ra, orderBuffer.View, smallCyclesView, smallPrimesView, smallPrimesPow2View);
ra, orderBuffer.View, smallCyclesView, primeViews.LastOne, primeViews.LastSeven, primeViews.LastOnePow2, primeViews.LastSevenPow2);
}
else
{