Catalyst-Neuromorphic/shd-snn-benchmark

Catalyst SHD SNN Benchmark

Spiking Neural Network for spoken digit classification on SHD.

Model Description

• Architecture: 700 → 1024 (recurrent adLIF) → 20
• Neuron model: Adaptive Leaky Integrate-and-Fire (adLIF) with Symplectic Euler discretization
• Training: Surrogate gradient BPTT, fast-sigmoid surrogate (scale=25)
• Hardware target: Catalyst N1/N2/N3 neuromorphic processors
• Quantization: Float32 weights -> int16, membrane decay -> 12-bit fixed-point

Results

Metric	Value
Float accuracy	90.68%
Quantized accuracy (int16)	90.2%
Parameters	1,789,972
Quantization loss	0.5%

Reproduce

git clone https://github.com/catalyst-neuromorphic/catalyst-benchmarks.git
cd catalyst-benchmarks
pip install -e .
python shd/train.py --device cuda:0

Deploy to Catalyst Hardware

import catalyst_cloud

client = catalyst_cloud.Client()
result = client.simulate(
    model="catalyst-neuromorphic/shd-snn-benchmark",
    input_data=your_spikes,
    processor="n2"
)

Links

• Benchmark repo: catalyst-neuromorphic/catalyst-benchmarks
• Cloud API: catalyst-neuromorphic.com
• N2 paper: Zenodo DOI 10.5281/zenodo.18728256
• N1 paper: Zenodo DOI 10.5281/zenodo.18727094

Citation

@misc{catalyst-benchmarks-2026,
  author = {Shulayev Barnes, Henry},
  title = {Catalyst Neuromorphic Benchmarks},
  year = {2026},
  url = {https://github.com/catalyst-neuromorphic/catalyst-benchmarks}
}