mlemanczyk/even-perfect-numbers-scanner
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Inline GpuUInt128 Mul64 helper

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Marek Lemańczyk committed 2025-10-20 13:30:34 +02:00
1 parent 9c08cf48a7
commit 1809ba95b3
8 files changed
+108 -114
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PerfectNumbers.Core/Gpu/Kernels/IncrementalKernels.cs
+2 -2
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@@ -71,7 +71,7 @@ internal static class IncrementalKernels
// TODO: Is this expected that the value of kStart is modified?
GpuUInt128 k = kStart + (GpuUInt128)idx;
GpuUInt128 q = twoP;
q.Mul64(k);
GpuUInt128.Mul64(ref q, k.High, k.Low);
q.Add(GpuUInt128.One);
ReadOnlyGpuUInt128 readOnlyQ = q.AsReadOnly();
@@ -174,7 +174,7 @@ internal static class IncrementalKernels
GpuUInt128 k = kStart + (GpuUInt128)idx;
GpuUInt128 q = twoP;
q.Mul64(k);
GpuUInt128.Mul64(ref q, k.High, k.Low);
q.Add(GpuUInt128.One);
ReadOnlyGpuUInt128 readOnlyQ = q.AsReadOnly();