mlemanczyk/even-perfect-numbers-scanner
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PrimeOrderCalculator.PartialFactorCpu simplified to work only with spans and throw exception if the number of factors is exceeded. PrimeOrderMode removed in favor of bool flag.

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mlemanczyk committed 2025-12-10 12:47:25 +01:00
1 parent 72890bf343
commit 7a242b3bfa
15 files changed
+337 -302
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PerfectNumbers.Core/PrimeOrderCalculator.Gpu.cs
+8 -8
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@@ -15,7 +15,7 @@ internal static partial class PrimeOrderCalculator
ulong prime,
ulong? previousOrder,
in MontgomeryDivisorData divisorData,
in PrimeOrderSearchConfig config)
in PrimeOrderCalculatorConfig config)
{
// TODO: Is this condition ever met on EvenPerfectBitScanner's execution path? If not, we can add a clarification comment and comment out the entire block. We want to support p candidates at least greater or equal to 31.
if (prime <= 3UL)
@@ -50,7 +50,7 @@ internal static partial class PrimeOrderCalculator
PrimeOrderCalculatorAccelerator gpu,
in UInt128 prime,
in UInt128? previousOrder,
in PrimeOrderSearchConfig config)
in PrimeOrderCalculatorConfig config)
{
MontgomeryDivisorData divisorData;
UInt128 result;
@@ -86,7 +86,7 @@ internal static partial class PrimeOrderCalculator
return result;
}
private static UInt128 CalculateWideInternalGpu(PrimeOrderCalculatorAccelerator gpu, in UInt128 prime, in UInt128? previousOrder, in MontgomeryDivisorData? divisorData, in PrimeOrderSearchConfig config)
private static UInt128 CalculateWideInternalGpu(PrimeOrderCalculatorAccelerator gpu, in UInt128 prime, in UInt128? previousOrder, in MontgomeryDivisorData? divisorData, in PrimeOrderCalculatorConfig config)
{
if (prime <= UInt128.One)
{
@@ -118,7 +118,7 @@ internal static partial class PrimeOrderCalculator
in UInt128 prime,
in UInt128? previousOrder,
in MontgomeryDivisorData? divisorData,
in PrimeOrderSearchConfig config,
in PrimeOrderCalculatorConfig config,
in UInt128 phi,
in PartialFactorResult128 phiFactors)
{
@@ -135,7 +135,7 @@ internal static partial class PrimeOrderCalculator
return candidateOrder;
}
if (config.Mode == PrimeOrderMode.Strict)
if (config.StrictMode)
{
return FinishStrictlyWideGpu(gpu, prime, divisorData);
}
@@ -268,7 +268,7 @@ internal static partial class PrimeOrderCalculator
return order;
}
private static bool TryConfirmOrderWideGpu(PrimeOrderCalculatorAccelerator gpu, in UInt128 prime, in UInt128 order, in MontgomeryDivisorData? divisorData, in PrimeOrderSearchConfig config)
private static bool TryConfirmOrderWideGpu(PrimeOrderCalculatorAccelerator gpu, in UInt128 prime, in UInt128 order, in MontgomeryDivisorData? divisorData, in PrimeOrderCalculatorConfig config)
{
if (order == UInt128.Zero)
{
@@ -331,7 +331,7 @@ internal static partial class PrimeOrderCalculator
in UInt128 order,
in UInt128? previousOrder,
in MontgomeryDivisorData? divisorData,
in PrimeOrderSearchConfig config,
in PrimeOrderCalculatorConfig config,
out UInt128 result)
{
result = UInt128.Zero;
@@ -575,7 +575,7 @@ internal static partial class PrimeOrderCalculator
return exponent.Pow2MontgomeryModWindowed(modulus);
}
private static bool TryConfirmCandidateWideGpu(PrimeOrderCalculatorAccelerator gpu, in UInt128 prime, in UInt128 candidate, in PrimeOrderSearchConfig config, ref int powUsed, int powBudget, in MontgomeryDivisorData? divisorData)
private static bool TryConfirmCandidateWideGpu(PrimeOrderCalculatorAccelerator gpu, in UInt128 prime, in UInt128 candidate, in PrimeOrderCalculatorConfig config, ref int powUsed, int powBudget, in MontgomeryDivisorData? divisorData)
{
PartialFactorResult128 factorization = PartialFactorWide(candidate, config);
if (factorization.Factors is null)