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Heuristic tables split into 2 groups

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mlemanczyk committed 2025-11-17 16:04:27 +01:00
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commit 183b147135
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PerfectNumbers.Core/Gpu/HeuristicGpuCombinedDivisorTables.cs
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using System.Runtime.CompilerServices;
using ILGPU;
using ILGPU.Runtime;
namespace PerfectNumbers.Core.Gpu;
public readonly struct HeuristicGpuCombinedDivisorTables(
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorsEnding1,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorsEnding3,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorsEnding7,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorsEnding9,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorSquaresEnding1,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorSquaresEnding3,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorSquaresEnding7,
ArrayView1D<ulong, Stride1D.Dense> combinedDivisorSquaresEnding9)
{
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorsEnding1 = combinedDivisorsEnding1;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorsEnding3 = combinedDivisorsEnding3;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorsEnding7 = combinedDivisorsEnding7;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorsEnding9 = combinedDivisorsEnding9;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorSquaresEnding1 = combinedDivisorSquaresEnding1;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorSquaresEnding3 = combinedDivisorSquaresEnding3;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorSquaresEnding7 = combinedDivisorSquaresEnding7;
public readonly ArrayView1D<ulong, Stride1D.Dense> CombinedDivisorSquaresEnding9 = combinedDivisorSquaresEnding9;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ArrayView1D<ulong, Stride1D.Dense> SelectDivisors(byte ending) => ending switch
{
1 => CombinedDivisorsEnding1,
3 => CombinedDivisorsEnding3,
7 => CombinedDivisorsEnding7,
9 => CombinedDivisorsEnding9,
_ => ArrayView1D<ulong, Stride1D.Dense>.Empty,
};
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ArrayView1D<ulong, Stride1D.Dense> SelectDivisorSquares(byte ending) => ending switch
{
1 => CombinedDivisorSquaresEnding1,
3 => CombinedDivisorSquaresEnding3,
7 => CombinedDivisorSquaresEnding7,
9 => CombinedDivisorSquaresEnding9,
_ => ArrayView1D<ulong, Stride1D.Dense>.Empty,
};
}