PrimeOrderCalculatorAccelerator.Rent is now created outside of the loops and re-used for all calculations.

PerfectNumbers.Core.Tests/PrimeTester/PrimeTesterGcdTests.cs

@@ -1,4 +1,5 @@
 using FluentAssertions;
+using PerfectNumbers.Core.Gpu.Accelerators;
 using Xunit;
 
 namespace PerfectNumbers.Core.Tests;
@@ -6,20 +7,28 @@ namespace PerfectNumbers.Core.Tests;
 [Trait("Category", "Fast")]
 public class PrimeTesterGcdTests
 {
-    [Theory]
-    [InlineData(81UL, true)]
-    [InlineData(101UL, false)]
-    public void SharesFactorWithMaxExponent_detects_gcd(ulong n, bool expected)
-    {
-        PrimeTester.SharesFactorWithMaxExponent(n).Should().Be(expected);
-    }
+	[Theory]
+	[InlineData(81UL, true)]
+	[InlineData(101UL, false)]
+	public void SharesFactorWithMaxExponent_detects_gcd(ulong n, bool expected)
+	{
+		PrimeTester.SharesFactorWithMaxExponent(n).Should().Be(expected);
+	}
 
-    [Fact]
-    public void SharesFactorWithMaxExponentBatch_filters_values()
-    {
-        ulong[] values = [81UL, 101UL];
-        Span<byte> results = stackalloc byte[values.Length];
-        PrimeTester.SharesFactorWithMaxExponentBatch(values, results);
-        results.ToArray().Should().Equal(new byte[] { 1, 0 });
-    }
+	[Fact]
+	public void SharesFactorWithMaxExponentBatch_filters_values()
+	{
+		ulong[] values = [81UL, 101UL];
+		Span<byte> results = stackalloc byte[values.Length];
+		var gpu = PrimeOrderCalculatorAccelerator.Rent(1);
+		try
+		{
+			PrimeTester.SharesFactorWithMaxExponentBatch(gpu, values, results);
+			results.ToArray().Should().Equal(new byte[] { 1, 0 });
+		}
+		finally
+		{
+			PrimeOrderCalculatorAccelerator.Return(gpu);
+		}
+	}
 }