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Remove temporary by-divisor review documents

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Marek Lemańczyk committed 2025-10-28 02:01:28 +01:00
1 parent bd0727131f
commit 6dd5cea79f
27 files changed
+498 -600
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PerfectNumbers.Core/Gpu/MersenneNumberDivisorByDivisorGpuTester.cs
+7 -47
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@@ -220,7 +220,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
ulong stepValue = (ulong)twoP128;
byte step10 = (byte)(stepValue % 10UL);
byte step8 = (byte)(stepValue & 7UL);
byte step5 = (byte)(stepValue % 5UL);
byte step3 = (byte)(stepValue % 3UL);
byte step7 = (byte)(stepValue % 7UL);
byte step11 = (byte)(stepValue % 11UL);
@@ -229,7 +228,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
ulong currentDivisorValue = (ulong)currentDivisor128;
byte remainder10 = (byte)(currentDivisorValue % 10UL);
byte remainder8 = (byte)(currentDivisorValue & 7UL);
byte remainder5 = (byte)(currentDivisorValue % 5UL);
byte remainder3 = (byte)(currentDivisorValue % 3UL);
byte remainder7 = (byte)(currentDivisorValue % 7UL);
byte remainder11 = (byte)(currentDivisorValue % 11UL);
@@ -275,14 +273,13 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
byte localRemainder10 = remainder10;
byte localRemainder8 = remainder8;
byte localRemainder5 = remainder5;
byte localRemainder3 = remainder3;
byte localRemainder7 = remainder7;
byte localRemainder11 = remainder11;
for (int i = 0; i < chunkCount; i++)
{
bool passesSmallModuli = localRemainder3 != 0 && localRemainder5 != 0 && localRemainder7 != 0 && localRemainder11 != 0;
bool passesSmallModuli = localRemainder3 != 0 && localRemainder7 != 0 && localRemainder11 != 0;
if (passesSmallModuli && (localRemainder8 == 1 || localRemainder8 == 7) && ((decimalMask >> localRemainder10) & 1) != 0)
{
ulong divisorValue = (ulong)nextDivisor128;
@@ -290,21 +287,16 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
ulong divisorCycle = ResolveDivisorCycle(divisorValue, prime, in montgomeryData);
if (divisorCycle == prime)
{
int targetIndex = admissibleCount;
divisorSpan[targetIndex] = divisorValue;
exponentSpan[targetIndex] = prime;
divisorDataSpan[targetIndex] = new GpuDivisorPartialData(divisorValue);
offsetSpan[targetIndex] = targetIndex;
countSpan[targetIndex] = 1;
cycleSpan[targetIndex] = divisorCycle;
admissibleCount++;
processedCount += (ulong)(i + 1);
lastProcessed = divisorValue;
coveredRange = true;
return true;
}
}
nextDivisor128 += twoP128;
localRemainder10 = AddMod10(localRemainder10, step10);
localRemainder8 = AddMod8(localRemainder8, step8);
localRemainder5 = AddMod5(localRemainder5, step5);
localRemainder3 = AddMod3(localRemainder3, step3);
localRemainder7 = AddMod7(localRemainder7, step7);
localRemainder11 = AddMod11(localRemainder11, step11);
@@ -312,7 +304,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
remainder10 = localRemainder10;
remainder8 = localRemainder8;
remainder5 = localRemainder5;
remainder3 = localRemainder3;
remainder7 = localRemainder7;
remainder11 = localRemainder11;
@@ -380,19 +371,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
return (byte)sum;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static byte AddMod5(byte value, byte delta)
{
const int Modulus = 5;
int sum = value + delta;
if (sum >= Modulus)
{
sum -= Modulus;
}
return (byte)sum;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static byte AddMod7(byte value, byte delta)
@@ -490,7 +468,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
private MemoryBuffer1D<byte, Stride1D.Dense> _hitBuffer = null!;
private ulong[] _hostBuffer = null!;
private int _capacity;
private bool _disposed;
internal DivisorScanSession(MersenneNumberDivisorByDivisorGpuTester owner)
{
@@ -502,7 +479,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
internal void Reset()
{
_disposed = false;
}
private void EnsureExecutionResourcesLocked(int requiredCapacity)
@@ -549,11 +525,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
public void CheckDivisor(ulong divisor, in MontgomeryDivisorData divisorData, ulong divisorCycle, in ReadOnlySpan<ulong> primes, Span<byte> hits)
{
if (_disposed)
{
throw new ObjectDisposedException(nameof(DivisorScanSession));
}
int length = primes.Length;
// EvenPerfectBitScanner always supplies at least one exponent per divisor check, so the guard stays commented out.
// if (length == 0)
@@ -622,12 +593,7 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
int sentinel = int.MaxValue;
firstHitView.CopyFromCPU(ref sentinel, 1);
var kernel = _kernel;
if (kernel is null)
{
Monitor.Exit(_lease.ExecutionLock);
throw new InvalidOperationException("GPU divisor kernel was not initialized.");
}
var kernel = _kernel!;
kernel(1, divisorView, offsetView, countView, exponentView, cycleView, hitView, firstHitView);
@@ -640,12 +606,6 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
public void Dispose()
{
if (_disposed)
{
return;
}
_disposed = true;
_owner._sessionPool.Add(this);
}
}
@@ -695,7 +655,7 @@ public sealed class MersenneNumberDivisorByDivisorGpuTester : IMersenneNumberDiv
private void ReturnBatchResources(BatchResources resources) => _resourcePool.Add(resources);
private sealed class BatchResources : IDisposable
private sealed class BatchResources
{
private Accelerator? _accelerator;
private MemoryBuffer1D<GpuDivisorPartialData, Stride1D.Dense>? _divisorDataBuffer;