LevelZero.NET

Managed .NET wrapper for Intel Level Zero GPU compute, with a built-in SPIR-V kernel catalog for swarm optimization, spiking neural networks, and multi-objective algorithms.

Features

• Zero-config GPU access — discover and use Intel GPUs via Level Zero with a clean managed API
• Built-in SPIR-V kernels — pre-compiled kernels for 11 Intel GPU targets (Tiger Lake through Panther Lake)
• Kernel catalog — automatic device detection and kernel resolution with fallback chain
• Native shim embedding — LevelZeroShim.dll / libLevelZeroShim.so extracted at runtime, no manual setup
• High-level kernel wrappers — FitnessKernel, PSOVelocityKernel, NeuronUpdateKernel, STDPKernel, NBodyKernel, and more

Installation

dotnet add package LevelZero.NET

Quick Start

using LevelZero;

// Check GPU availability
if (LevelZeroRuntime.IsAvailable())
{
    var device = LevelZeroRuntime.GetDefaultDevice();
    Console.WriteLine($"GPU: {device}");

    // Load a SPIR-V module
    byte[] spirv = KernelCatalog.GetKernel("fitness_eval");
    using var module = device.LoadModule(spirv);

    // Allocate shared memory and launch
    using var buffer = device.AllocShared<float>(1024);
    device.Launch(module, "fitness_eval", workItems: 1024);
}

Supported GPU Targets

Codename	Architecture	Examples
tgllp	Gen12	Intel Iris Xe (11th Gen)
dg1	Gen12	Intel Iris Xe MAX
acm-g10/g11/g12	Xe-HPG	Intel Arc A-series
pvc	Xe-HPC	Intel Data Center GPU Max
mtl	Xe-LPG	Intel Core Ultra
arl-h	Xe-LPG+	Intel Arrow Lake
bmg-g21	Xe2	Intel Arc B-series (Battlemage)
lnl-m	Xe2-LPG	Intel Lunar Lake
ptl-h	Xe3-LPG	Intel Panther Lake

Kernel Catalog

The KernelCatalog resolves SPIR-V binaries using this chain:

1. Explicit file path
2. LEVELZERO_SPIRV_DIR environment variable
3. NuGet package content
4. Embedded assembly resources
5. Fallback to tgllp device target

Publishing

Tag a release to trigger NuGet publishing:

git tag v1.0.0
git push origin v1.0.0

Requires the NUGET_API_KEY secret configured in the repository settings.

License

MIT