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Pow2MontgomeryModWindowedConvertToStandardCpu usages replaced with a comparison to MontgomeryOne avoiding unnecessary conversions. Results updated.

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mlemanczyk committed 2026-01-03 01:37:40 +01:00
1 parent 3f59cdc14b
commit 6b80e31e6c
7 files changed
+57 -34
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PerfectNumbers.Core/Gpu/Kernels/PrimeOrderKernels.cs
+3 -3
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@@ -39,7 +39,7 @@ internal static partial class PrimeOrderKernels
}
// ulong candidate = order / primeFactor;
if (divisorData.Pow2MontgomeryModWindowedGpuConvertToStandard(candidate) == 1UL)
if (divisorData.Pow2MontgomeryModWindowedGpuKeepMontgomery(candidate) == divisorData.MontgomeryOne)
{
order = candidate;
continue;
@@ -395,7 +395,7 @@ internal static partial class PrimeOrderKernels
}
ulong reduced = phi / factor;
if (divisor.Pow2MontgomeryModWindowedGpuConvertToStandard(reduced) == 1UL)
if (divisor.Pow2MontgomeryModWindowedGpuKeepMontgomery(reduced) == divisor.MontgomeryOne)
{
return false;
}
@@ -1179,7 +1179,7 @@ internal static partial class PrimeOrderKernels
private static bool Pow2EqualsOneKernel(ulong exponent, in MontgomeryDivisorDataGpu divisor)
{
return divisor.Pow2MontgomeryModWindowedGpuConvertToStandard(exponent) == 1UL;
return divisor.Pow2MontgomeryModWindowedGpuKeepMontgomery(exponent) == divisor.MontgomeryOne;
}
[MethodImpl(MethodImplOptions.AggressiveOptimization)]