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GPU calculations frequency adjusted

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mlemanczyk committed 2025-11-19 21:38:07 +01:00
1 parent 5cac51479e
commit 54fdff0a4e
2 files changed
+11 -10
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PerfectNumbers.Core/PrimeOrderCalculator.Cpu.cs
+9 -9
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@@ -1177,7 +1177,7 @@ internal static partial class PrimeOrderCalculator
// bool isPrime = HeuristicCombinedPrimeTester.IsPrimeGpu(gpu, composite);
bool runOnGpu = RunOnGpu();
bool isPrime = runOnGpu ? PrimeTester.IsPrime(composite) : HeuristicCombinedPrimeTester.IsPrimeGpu(gpu, composite);
bool isPrime = !runOnGpu ? PrimeTester.IsPrime(composite) : HeuristicCombinedPrimeTester.IsPrimeGpu(gpu, composite);
// bool isPrime = PrimeTester.IsPrime(composite);
// bool isPrime = Open.Numeric.Primes.Prime.Numbers.IsPrime(composite);
@@ -1375,19 +1375,19 @@ internal static partial class PrimeOrderCalculator
private static bool RunOnGpu()
{
const int GpuFrequency = 1024 - 1;
int cpuCount = Atomic.Add(target: ref _cpuCount, 1);
if (cpuCount == GpuFrequency)
// return true;
int cpuCount = Atomic.Add(ref _cpuCount, 1);
// return (cpuCount % GpuFrequency) == 0;
if (cpuCount == PerfectNumberConstants.GpuFrequency)
{
Atomic.Add(ref _cpuCount, -GpuFrequency);
Atomic.Add(ref _cpuCount, -PerfectNumberConstants.GpuFrequency);
}
else if (cpuCount > GpuFrequency)
else if (cpuCount > PerfectNumberConstants.GpuFrequency)
{
cpuCount -= GpuFrequency;
cpuCount -= PerfectNumberConstants.GpuFrequency;
}
return cpuCount != GpuFrequency;
return cpuCount == PerfectNumberConstants.GpuFrequency;
}
private static void PopulateSmallPrimeFactorsCpu(