mlemanczyk/even-perfect-numbers-scanner
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CPU vs GPU work delegation adjusted to better utilize CPU.

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mlemanczyk committed 2025-11-29 12:09:33 +01:00
1 parent c311b27dcc
commit 6a1198c417
12 files changed
+576 -344
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PerfectNumbers.Core/MersenneDivisorCycles.cs
+2 -2
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@@ -415,7 +415,7 @@ public class MersenneDivisorCycles
// Console.WriteLine($"MersenneDivisorCycles.TryFactorIntoCountsInternal hits {Volatile.Read(ref _tryFactorIntoCountsInternalHits)}");
// HeuristicPrimeTester primeTester = _primeTester ??= new();
if (HeuristicCombinedPrimeTester.IsPrimeCpu(remaining))
if (PrimeTesterByLastDigit.IsPrimeCpu(remaining))
// if (HeuristicCombinedPrimeTester.IsPrimeGpu(gpu, remaining))
// if (PrimeTester.IsPrime(remaining))
{
@@ -966,7 +966,7 @@ public class MersenneDivisorCycles
// HeuristicPrimeTester primeTester = _primeTester ??= new();
// if (!skipPrimeOrderHeuristic && HeuristicPrimeTester.Exclusive.IsPrimeCpu(divisor, CancellationToken.None))
if (!skipPrimeOrderHeuristic && HeuristicCombinedPrimeTester.IsPrimeCpu(divisor))
if (!skipPrimeOrderHeuristic && PrimeTesterByLastDigit.IsPrimeCpu(divisor))
// if (!skipPrimeOrderHeuristic && HeuristicCombinedPrimeTester.IsPrimeGpu(divisor))
{
ulong computedOrder = PrimeOrderCalculator.Calculate(