mlemanczyk/even-perfect-numbers-scanner
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Temporarily enabling heuristic GPU order checks.

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mlemanczyk committed 2025-10-28 20:49:41 +01:00
1 parent bead40713c
commit 4db06cfe80
1 file changed
+6 -4
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PerfectNumbers.Core/PrimeOrderCalculator.Cpu.cs
+6 -4
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@@ -53,7 +53,8 @@ internal static partial class PrimeOrderCalculator
ulong phi = prime - 1UL; ulong phi = prime - 1UL;
if (IsGpuHeuristicDevice && PrimeOrderGpuHeuristics.TryCalculateOrder(prime, previousOrder, config, divisorData, out ulong gpuOrder)) // if (IsGpuHeuristicDevice && PrimeOrderGpuHeuristics.TryCalculateOrder(prime, previousOrder, config, divisorData, out ulong gpuOrder))
if (PrimeOrderGpuHeuristics.TryCalculateOrder(prime, previousOrder, config, divisorData, out ulong gpuOrder))
{ {
return gpuOrder; return gpuOrder;
} }
@@ -1069,7 +1070,7 @@ internal static partial class PrimeOrderCalculator
ulong remaining = value; ulong remaining = value;
bool gpuFactored = false; bool gpuFactored = false;
if (IsGpuHeuristicDevice) // if (IsGpuHeuristicDevice)
{ {
gpuFactored = PrimeOrderGpuHeuristics.TryPartialFactor(value, limit, primeSlots, exponentSlots, out factorCount, out remaining, out _); gpuFactored = PrimeOrderGpuHeuristics.TryPartialFactor(value, limit, primeSlots, exponentSlots, out factorCount, out remaining, out _);
} }
@@ -1078,6 +1079,7 @@ internal static partial class PrimeOrderCalculator
Stack<ulong>? compositeStack = null; Stack<ulong>? compositeStack = null;
PartialFactorResult result; PartialFactorResult result;
PrimeTester primeTester = PrimeTester.Exclusive; PrimeTester primeTester = PrimeTester.Exclusive;
CancellationToken ct = CancellationToken.None;
if (!gpuFactored) if (!gpuFactored)
{ {
@@ -1150,7 +1152,7 @@ internal static partial class PrimeOrderCalculator
// Console.WriteLine($"Partial factor hits {Volatile.Read(ref _partialFactorHits)}"); // Console.WriteLine($"Partial factor hits {Volatile.Read(ref _partialFactorHits)}");
// bool isPrime = PrimeTester.IsPrimeCpu(composite, CancellationToken.None); // bool isPrime = PrimeTester.IsPrimeCpu(composite, CancellationToken.None);
bool isPrime = PrimeTester.IsPrimeGpu(composite); bool isPrime = PrimeTester.IsPrimeCpu(composite, ct);
// bool isPrime = Open.Numeric.Primes.Prime.Numbers.IsPrime(composite); // bool isPrime = Open.Numeric.Primes.Prime.Numbers.IsPrime(composite);
if (isPrime) if (isPrime)
@@ -1218,7 +1220,7 @@ internal static partial class PrimeOrderCalculator
// Console.WriteLine($"Partial factor pending hits {Volatile.Read(ref _partialFactorPendingHits)}"); // Console.WriteLine($"Partial factor pending hits {Volatile.Read(ref _partialFactorPendingHits)}");
// bool isPrime = PrimeTester.IsPrimeCpu(composite, CancellationToken.None); // bool isPrime = PrimeTester.IsPrimeCpu(composite, CancellationToken.None);
bool isPrime = PrimeTester.IsPrimeGpu(composite); bool isPrime = PrimeTester.IsPrimeCpu(composite, ct);
// bool isPrime = Open.Numeric.Primes.Prime.Numbers.IsPrime(composite); // bool isPrime = Open.Numeric.Primes.Prime.Numbers.IsPrime(composite);
entry = entry.WithPrimality(isPrime); entry = entry.WithPrimality(isPrime);