mlemanczyk/even-perfect-numbers-scanner
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Address windowed pow2 review feedback

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Marek Lemańczyk committed 2025-10-20 18:37:29 +02:00
1 parent 481d1010e8
commit da6ea25729
9 files changed
+17 -20
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PerfectNumbers.Core/Gpu/Kernels/IncrementalKernels.cs
+2 -2
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@@ -96,7 +96,7 @@ internal static class IncrementalKernels
}
ulong phi64 = phi.Low;
if (GpuUInt128.Pow2Mod(phi64, in readOnlyQ) != GpuUInt128.One) // Windowed pow2 keeps the totient check fast.
if (GpuUInt128.Pow2Mod(phi64, in readOnlyQ) != GpuUInt128.One)
{
orders[index] = 0UL;
return;
@@ -192,7 +192,7 @@ internal static class IncrementalKernels
}
ulong phi64 = phi.Low;
if (GpuUInt128.Pow2Mod(phi64, in readOnlyQ) != GpuUInt128.One) // Windowed pow2 keeps the order probe aligned with benchmarks.
if (GpuUInt128.Pow2Mod(phi64, in readOnlyQ) != GpuUInt128.One)
{
return;
}