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MontgomeryDivisorData converted to a pooled class to limit GC pressure. MontgomeryDivisorDataGpu added for GPU operations. PrimeOrderCalculator kernels precompiled during warmup.

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mlemanczyk committed 2025-11-24 15:14:31 +01:00
1 parent 07efd5d2a1
commit 070e2a14fd
32 files changed
+310 -192
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PerfectNumbers.Core/Gpu/MersenneNumberDivisorByDivisorGpuTester.cs
+3 -2
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@@ -260,7 +260,7 @@ public sealed partial class MersenneNumberDivisorByDivisorGpuTester : IMersenneN
ArrayView1D<ulong, Stride1D.Dense> exponentViewDevice = exponentBuffer.View;
ArrayView1D<byte, Stride1D.Dense> hitsView = hitsBuffer.View;
ArrayView1D<int, Stride1D.Dense> hitIndexView = hitIndexBuffer.View;
Queue<MontgomeryDivisorData> divisorPool = MontgomeryDivisorDataPool.Shared;
while (remainingCount > 0UL && !composite)
{
int chunkCount = chunkCountBaseline;
@@ -284,7 +284,7 @@ public sealed partial class MersenneNumberDivisorByDivisorGpuTester : IMersenneN
if (passesSmallModuli && (localRemainder8 == 1 || localRemainder8 == 7) && ((decimalMask >> localRemainder10) & 1) != 0)
{
ulong divisorValue = (ulong)nextDivisor128;
MontgomeryDivisorData montgomeryData = MontgomeryDivisorData.FromModulus(divisorValue);
MontgomeryDivisorData montgomeryData = divisorPool.FromModulus(divisorValue);
ulong divisorCycle = ResolveDivisorCycle(gpu, divisorValue, prime, in montgomeryData);
if (divisorCycle == prime)
{
@@ -294,6 +294,7 @@ public sealed partial class MersenneNumberDivisorByDivisorGpuTester : IMersenneN
return true;
}
divisorPool.Return(montgomeryData);
divisorSpan[admissibleCount] = divisorValue;
divisorDataSpan[admissibleCount] = new GpuDivisorPartialData(divisorValue);
offsetSpan[admissibleCount] = admissibleCount;