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

Stream handling simplified to avoid dictionary lookups in favor of array lookups with known indexes.

Browse Source
This commit is contained in:
mlemanczyk committed 2025-11-16 15:01:51 +01:00
1 parent cd7636ddbe
commit a84445ef2a
15 files changed
+67 -73
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

PerfectNumbers.Core/Gpu/Kernels/PrimeTesterKernels.cs
+2 -12
View File
@@ -83,20 +83,10 @@ internal static class PrimeTesterKernels
ArrayView<int> resultFlag,
ulong n,
ulong maxDivisorSquare,
HeuristicGpuDivisorTableKind tableKind,
HeuristicGpuDivisorTables tables)
ArrayView1D<ulong, Stride1D.Dense> divisors,
ArrayView1D<ulong, Stride1D.Dense> divisorSquares)
{
byte nMod10 = (byte)(n % 10UL);
ArrayView1D<ulong, Stride1D.Dense> divisors = tables.SelectDivisors(tableKind, nMod10);
ArrayView1D<ulong, Stride1D.Dense> divisorSquares = tables.SelectDivisorSquares(tableKind, nMod10);
int divisorLength = (int)divisorSquares.Length;
int threadIndex = index;
if (threadIndex >= divisorLength)
{
return;
}
ulong divisorSquare = divisorSquares[threadIndex];
if (divisorSquare > maxDivisorSquare)
{