Merge branch 'codex/optimize-evenperfectbitscanner-for-static-arrays' from github

PerfectNumbers.Core/Gpu/SharedGpuContext.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Threading;
+using ILGPU;
+using ILGPU.Runtime;
+
+namespace PerfectNumbers.Core.Gpu;
+
+internal static class SharedGpuContext
+{
+    private static readonly Lazy<Context> s_context = new(() => ILGPU.Context.CreateDefault(), LazyThreadSafetyMode.ExecutionAndPublication);
+    private static readonly Lazy<Device> s_device = new(() => s_context.Value.GetPreferredDevice(false), LazyThreadSafetyMode.ExecutionAndPublication);
+    private static readonly Lazy<Accelerator> s_accelerator = new(() => s_device.Value.CreateAccelerator(s_context.Value), LazyThreadSafetyMode.ExecutionAndPublication);
+
+    internal static Context Context => s_context.Value;
+
+    internal static Device Device => s_device.Value;
+
+    internal static Accelerator Accelerator => s_accelerator.Value;
+}