mlemanczyk/even-perfect-numbers-scanner
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

BitContradiction GPU bug fixes.

Browse Source
This commit is contained in:
mlemanczyk committed 2026-01-26 03:38:35 +01:00
1 parent 46801737dc
commit 5c77d6c3af
5 files changed
+417 -9
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

PerfectNumbers.Core/Cpu/MersenneNumberDivisorByDivisorCpuTesterWithTemplate.cs
+4 -1
View File
@@ -1,5 +1,6 @@
// #define DivisorSet_BitContradiction
// #define DivisorSet_BitTree
// #define DEVICE_GPU
using System;
using System.Diagnostics;
@@ -110,6 +111,8 @@ public struct MersenneNumberDivisorByDivisorCpuTesterWithTemplate() : IMersenneN
ulong[] batchIndexWords = new ulong[inputCapacity];
int debugWordsPerSlot = BitContradictionKernels.DebugWordCountPerSlot;
using MemoryBuffer1D<ulong, Stride1D.Dense> debugBuffer = gpu.Accelerator.Allocate1D<ulong>(maxThreadCount * debugWordsPerSlot);
using MemoryBuffer1D<int, Stride1D.Dense> delta8Keys = gpu.Accelerator.Allocate1D<int>(maxThreadCount * BitContradictionKernels.DeltaCacheSlots);
using MemoryBuffer1D<int, Stride1D.Dense> delta8Cache = gpu.Accelerator.Allocate1D<int>(maxThreadCount * BitContradictionKernels.DeltaCacheSlots * 4194304);
ArrayView1D<ulong, Stride1D.Dense> debugView = debugBuffer.View;
BigInteger currentBatch = (currentK - BigInteger.One) / batchSizeBig;
@@ -158,7 +161,7 @@ public struct MersenneNumberDivisorByDivisorCpuTesterWithTemplate() : IMersenneN
}
gpu.InputView.CopyFromCPU(stream, batchIndexWords.AsSpan(0, threadCount * wordCount));
kernel(stream, threadCount, prime, gpu.InputView, countQ, gpu.OutputIntView, debugView);
kernel(stream, threadCount, prime, gpu.InputView, countQ, gpu.OutputIntView, debugView, delta8Keys.View, delta8Cache.View);
stream.Synchronize();
gpu.OutputIntView.CopyToCPU(stream, found.AsSpan(0, threadCount));