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Make by-divisor GPU kernels reuse read-only operands

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Marek Lemańczyk committed 2025-10-08 18:47:16 +02:00
1 parent cd1debe9d6
commit 6918bd28ff
8 files changed
+594 -250
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PerfectNumbers.Core.Tests/MersenneNumberDivisorGpuTesterTests.cs
+6 -3
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@@ -21,7 +21,8 @@ public class MersenneNumberDivisorGpuTesterTests
public void IsDivisible_returns_expected(ulong exponent, ulong divisor, bool expected)
{
var tester = new MersenneNumberDivisorGpuTester();
tester.IsDivisible(exponent, divisor).Should().Be(expected);
ReadOnlyGpuUInt128 divisorValue = new ReadOnlyGpuUInt128(divisor);
tester.IsDivisible(exponent, in divisorValue).Should().Be(expected);
}
[Fact]
@@ -30,8 +31,10 @@ public class MersenneNumberDivisorGpuTesterTests
{
var tester = new MersenneNumberDivisorGpuTester();
UInt128 divisor = (UInt128.One << 65) - UInt128.One;
tester.IsDivisible(65UL, divisor).Should().BeTrue();
tester.IsDivisible(65UL, divisor + 2).Should().BeFalse();
ReadOnlyGpuUInt128 divisorValue = new ReadOnlyGpuUInt128(divisor);
tester.IsDivisible(65UL, in divisorValue).Should().BeTrue();
divisorValue = new ReadOnlyGpuUInt128(divisor + 2); // Reusing divisorValue for the shifted candidate.
tester.IsDivisible(65UL, in divisorValue).Should().BeFalse();
}
[Fact]