mlemanczyk/even-perfect-numbers-scanner
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Prime testing using divisor tables depending on the last digit separated to its own class. PrimeTester switched back to standard endings.

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mlemanczyk committed 2025-11-27 16:45:02 +01:00
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commit c311b27dcc
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+526 -215
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PerfectNumbers.Core/PerfectNumberConstants.cs
+3 -3
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@@ -8,14 +8,14 @@ public static class PerfectNumberConstants
public const int DefaultSmallPrimeFactorSlotCount = 64;
public const int DefaultSpecialMaxFactorCapacity = 1024;
public const ulong ExtraDivisorCycleSearchLimit = 64UL;
public const int GpuFrequency = 256 - 1;
public const int GpuFrequency = 192 - 1;
public const int MaxQForDivisorCycles = 4_000_000;
public static readonly uint PrimesLimit = 1_000_000; //(ulong)Array.MaxLength;// 1_000_000;
public const int MaxOddPowersCount = 128;
public const int PooledArrayThreshold = 64;
public const int Pow2WindowSize = 8;
public static readonly int RollingAccelerators = 298; //SharedGpuContext.Device.MaxNumThreadsPerGroup;
public const int ThreadsByAccelerator = 1;
public static int RollingAccelerators = 298; //SharedGpuContext.Device.MaxNumThreadsPerGroup;
public const int ThreadsByAccelerator = 16;
// TODO: Load these limits from the benchmark-driven configuration so CPU and GPU scans stay aligned with the optimal
// divisor-cycle datasets we generate offline.
// TODO: Promote these magic numbers into a runtime profile derived from EvenPerfectBitScanner.Benchmarks so we can retune