mlemanczyk/even-perfect-numbers-scanner
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Convert divisor session results to hits on the GPU

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Marek Lemańczyk committed 2025-10-23 00:34:17 +02:00
1 parent faab60c2cd
commit ea01585892
3 files changed
+56 -42
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PerfectNumbers.Core.Tests/MersenneNumberDivisorGpuTesterTests.cs
+2 -22
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@@ -197,17 +197,7 @@ public class MersenneNumberDivisorGpuTesterTests
session.CheckDivisor(7UL, divisorData, cycle, exponents, hits);
var hostBufferField = typeof(MersenneNumberDivisorByDivisorGpuTester.DivisorScanSession)
.GetField("_hostBuffer", BindingFlags.NonPublic | BindingFlags.Instance)!;
ulong[] hostBuffer = (ulong[])hostBufferField.GetValue(session)!;
Span<ulong> residues = hostBuffer.AsSpan(0, exponents.Length);
byte[] computedHits = new byte[exponents.Length];
for (int i = 0; i < residues.Length; i++)
{
computedHits[i] = residues[i] == divisorData.MontgomeryOne ? (byte)1 : (byte)0;
}
computedHits.Should().Equal(new byte[] { 1, 0, 1, 0, 1 });
hits.Should().Equal(new byte[] { 1, 0, 1, 0, 1 });
}
[Fact]
@@ -229,17 +219,7 @@ public class MersenneNumberDivisorGpuTesterTests
session.CheckDivisor(11UL, divisorData, cycle, exponents, hits);
var hostBufferField = typeof(MersenneNumberDivisorByDivisorGpuTester.DivisorScanSession)
.GetField("_hostBuffer", BindingFlags.NonPublic | BindingFlags.Instance)!;
ulong[] hostBuffer = (ulong[])hostBufferField.GetValue(session)!;
Span<ulong> residues = hostBuffer.AsSpan(0, exponents.Length);
byte[] computedHits = new byte[exponents.Length];
for (int i = 0; i < residues.Length; i++)
{
computedHits[i] = residues[i] == divisorData.MontgomeryOne ? (byte)1 : (byte)0;
}
computedHits.Should().Equal(new byte[] { 1, 0, 1, 0, 1 });
hits.Should().Equal(new byte[] { 1, 0, 1, 0, 1 });
}
[Fact]