GPU stabilization improvements to prevent calculation crashes
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@@ -2,7 +2,6 @@ using Open.Numeric.Primes;
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using ILGPU.Runtime;
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using System.Runtime.CompilerServices;
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using PerfectNumbers.Core.Gpu;
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using System.Runtime.InteropServices;
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namespace PerfectNumbers.Core;
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@@ -41,7 +40,6 @@ public sealed class HeuristicCombinedPrimeTester
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CombinedDivisorsEnding9Squares = CombinedDivisorsEnding9OneAOneBSquares;
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}
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public static void EnsureInitialized()
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{
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// Intentionally left blank. Accessing this method forces the static constructor to run.
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@@ -229,7 +227,7 @@ public sealed class HeuristicCombinedPrimeTester
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var gpu = PrimeTester.PrimeTesterGpuContextPool.Rent(1);
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var accelerator = gpu.Accelerator;
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var stream = gpu.Stream;
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var kernel = PrimeTester.PrimeTesterGpuContextPool.PrimeTesterGpuContextLease.HeuristicTrialDivisionKernel;
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var kernel = PrimeTester.PrimeTesterGpuContextPool.PrimeTesterGpuContextLease.GetHeuristicTrialDivisionKernel(accelerator);
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var flagView1D = gpu.HeuristicFlag.View;
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var flagView = flagView1D.AsContiguous();
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@@ -267,109 +265,97 @@ public sealed class HeuristicCombinedPrimeTester
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return n;
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}
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private static ReadOnlySpan<ulong> GetCombinedDivisors(byte nMod10)
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private static ReadOnlySpan<ulong> GetCombinedDivisors(byte nMod10) => nMod10 switch
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{
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return nMod10 switch
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1 => CombinedDivisorsEnding1,
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3 => CombinedDivisorsEnding3,
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7 => CombinedDivisorsEnding7,
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9 => CombinedDivisorsEnding9,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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};
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private static ReadOnlySpan<ulong> GetCombinedDivisorSquares(byte nMod10) => nMod10 switch
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{
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1 => CombinedDivisorsEnding1Squares,
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3 => CombinedDivisorsEnding3Squares,
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7 => CombinedDivisorsEnding7Squares,
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9 => CombinedDivisorsEnding9Squares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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};
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internal static ReadOnlySpan<ulong> GetCombinedDivisors(byte nMod10, CombinedDivisorPattern pattern) => pattern switch
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{
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CombinedDivisorPattern.TwoAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1,
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3 => CombinedDivisorsEnding3,
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7 => CombinedDivisorsEnding7,
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9 => CombinedDivisorsEnding9,
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1 => CombinedDivisorsEnding1TwoAOneB,
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3 => CombinedDivisorsEnding3TwoAOneB,
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7 => CombinedDivisorsEnding7TwoAOneB,
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9 => CombinedDivisorsEnding9TwoAOneB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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};
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}
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private static ReadOnlySpan<ulong> GetCombinedDivisorSquares(byte nMod10)
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{
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return nMod10 switch
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},
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CombinedDivisorPattern.OneAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1Squares,
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3 => CombinedDivisorsEnding3Squares,
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7 => CombinedDivisorsEnding7Squares,
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9 => CombinedDivisorsEnding9Squares,
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1 => CombinedDivisorsEnding1OneAOneB,
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3 => CombinedDivisorsEnding3OneAOneB,
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7 => CombinedDivisorsEnding7OneAOneB,
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9 => CombinedDivisorsEnding9OneAOneB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeAOneB,
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3 => CombinedDivisorsEnding3ThreeAOneB,
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7 => CombinedDivisorsEnding7ThreeAOneB,
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9 => CombinedDivisorsEnding9ThreeAOneB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeATwoB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeATwoB,
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3 => CombinedDivisorsEnding3ThreeATwoB,
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7 => CombinedDivisorsEnding7ThreeATwoB,
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9 => CombinedDivisorsEnding9ThreeATwoB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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_ => throw new InvalidOperationException($"Unsupported combined divisor pattern: {pattern}."),
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};
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internal static ReadOnlySpan<ulong> GetCombinedDivisorSquares(byte nMod10, CombinedDivisorPattern pattern) => pattern switch
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{
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CombinedDivisorPattern.TwoAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1TwoAOneBSquares,
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3 => CombinedDivisorsEnding3TwoAOneBSquares,
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7 => CombinedDivisorsEnding7TwoAOneBSquares,
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9 => CombinedDivisorsEnding9TwoAOneBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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};
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}
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internal static ReadOnlySpan<ulong> GetCombinedDivisors(byte nMod10, CombinedDivisorPattern pattern)
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{
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return pattern switch
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},
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CombinedDivisorPattern.OneAOneB => nMod10 switch
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{
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CombinedDivisorPattern.TwoAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1TwoAOneB,
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3 => CombinedDivisorsEnding3TwoAOneB,
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7 => CombinedDivisorsEnding7TwoAOneB,
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9 => CombinedDivisorsEnding9TwoAOneB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.OneAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1OneAOneB,
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3 => CombinedDivisorsEnding3OneAOneB,
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7 => CombinedDivisorsEnding7OneAOneB,
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9 => CombinedDivisorsEnding9OneAOneB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeAOneB,
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3 => CombinedDivisorsEnding3ThreeAOneB,
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7 => CombinedDivisorsEnding7ThreeAOneB,
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9 => CombinedDivisorsEnding9ThreeAOneB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeATwoB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeATwoB,
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3 => CombinedDivisorsEnding3ThreeATwoB,
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7 => CombinedDivisorsEnding7ThreeATwoB,
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9 => CombinedDivisorsEnding9ThreeATwoB,
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_ => throw new InvalidOperationException($"Unsupported combined divisor selector for digit {nMod10}."),
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},
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_ => throw new InvalidOperationException($"Unsupported combined divisor pattern: {pattern}."),
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};
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}
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internal static ReadOnlySpan<ulong> GetCombinedDivisorSquares(byte nMod10, CombinedDivisorPattern pattern)
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{
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return pattern switch
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1 => CombinedDivisorsEnding1OneAOneBSquares,
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3 => CombinedDivisorsEnding3OneAOneBSquares,
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7 => CombinedDivisorsEnding7OneAOneBSquares,
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9 => CombinedDivisorsEnding9OneAOneBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeAOneB => nMod10 switch
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{
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CombinedDivisorPattern.TwoAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1TwoAOneBSquares,
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3 => CombinedDivisorsEnding3TwoAOneBSquares,
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7 => CombinedDivisorsEnding7TwoAOneBSquares,
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9 => CombinedDivisorsEnding9TwoAOneBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.OneAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1OneAOneBSquares,
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3 => CombinedDivisorsEnding3OneAOneBSquares,
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7 => CombinedDivisorsEnding7OneAOneBSquares,
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9 => CombinedDivisorsEnding9OneAOneBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeAOneB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeAOneBSquares,
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3 => CombinedDivisorsEnding3ThreeAOneBSquares,
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7 => CombinedDivisorsEnding7ThreeAOneBSquares,
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9 => CombinedDivisorsEnding9ThreeAOneBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeATwoB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeATwoBSquares,
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3 => CombinedDivisorsEnding3ThreeATwoBSquares,
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7 => CombinedDivisorsEnding7ThreeATwoBSquares,
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9 => CombinedDivisorsEnding9ThreeATwoBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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_ => throw new InvalidOperationException($"Unsupported combined divisor pattern for squares: {pattern}."),
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};
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}
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1 => CombinedDivisorsEnding1ThreeAOneBSquares,
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3 => CombinedDivisorsEnding3ThreeAOneBSquares,
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7 => CombinedDivisorsEnding7ThreeAOneBSquares,
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9 => CombinedDivisorsEnding9ThreeAOneBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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CombinedDivisorPattern.ThreeATwoB => nMod10 switch
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{
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1 => CombinedDivisorsEnding1ThreeATwoBSquares,
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3 => CombinedDivisorsEnding3ThreeATwoBSquares,
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7 => CombinedDivisorsEnding7ThreeATwoBSquares,
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9 => CombinedDivisorsEnding9ThreeATwoBSquares,
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_ => throw new InvalidOperationException($"Unsupported combined divisor square selector for digit {nMod10}."),
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},
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_ => throw new InvalidOperationException($"Unsupported combined divisor pattern for squares: {pattern}."),
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};
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private static ulong[] BuildCombinedDivisors(byte nMod10, CombinedDivisorPattern pattern, out ulong[] squares)
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{
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@@ -443,8 +429,6 @@ public sealed class HeuristicCombinedPrimeTester
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return result;
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}
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private static int GetGroupBStartIndex(ReadOnlySpan<uint> divisors)
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{
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int index = 0;
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