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

PerfectNumbers.Core.Tests/MersenneDivisorCyclesTests.cs

@@ -1,26 +1,35 @@
 using FluentAssertions;
+using PerfectNumbers.Core.Gpu.Accelerators;
 using Xunit;
 
 namespace PerfectNumbers.Core.Tests;
 
 public class MersenneDivisorCyclesTests
 {
-    public static IEnumerable<object[]> Divisors() =>
-        new[]
-        {
-            new object[] {3UL, 2UL},
-            new object[] {7UL, 3UL},
-            new object[] {11UL, 10UL},
-        };
+	public static IEnumerable<object[]> Divisors() =>
+		new[]
+		{
+			new object[] {3UL, 2UL},
+			new object[] {7UL, 3UL},
+			new object[] {11UL, 10UL},
+		};
 
-    [Theory]
-    [Trait("Category", "Fast")]
-    [MemberData(nameof(Divisors))]
-    public void CalculateCycleLength_returns_expected_value(ulong divisor, ulong expected)
-    {
-        MontgomeryDivisorData divisorData = MontgomeryDivisorDataPool.Shared.FromModulus(divisor);
-        MersenneDivisorCycles.CalculateCycleLength(divisor, divisorData).Should().Be(expected);
-        MersenneDivisorCycles.CalculateCycleLengthGpu(divisor).Should().Be(expected);
-    }
+	[Theory]
+	[Trait("Category", "Fast")]
+	[MemberData(nameof(Divisors))]
+	public void CalculateCycleLength_returns_expected_value(ulong divisor, ulong expected)
+	{
+		var gpu = PrimeOrderCalculatorAccelerator.Rent(1);
+		try
+		{
+			MontgomeryDivisorData divisorData = MontgomeryDivisorDataPool.Shared.FromModulus(divisor);
+			MersenneDivisorCycles.CalculateCycleLength(gpu, divisor, divisorData).Should().Be(expected);
+			MersenneDivisorCycles.CalculateCycleLengthGpu(divisor).Should().Be(expected);
+		}
+		finally
+		{
+			PrimeOrderCalculatorAccelerator.Return(gpu);
+		}
+	}
 }