How to Get Started with SpikingJelly

Feb 3, 2021 | Data Science

Welcome to the exciting world of Spiking Jelly, an open-source deep learning framework designed for Spiking Neural Networks (SNNs) based on PyTorch. In this guide, we will explore how to install SpikingJelly, build SNNs, and convert Artificial Neural Networks (ANNs) to SNNs with ease. We will also include troubleshooting tips to help you through any hiccups.

Installation

Before diving into SpikingJelly, ensure you have PyTorch installed on your system, as SpikingJelly relies heavily on it. Follow these steps to set up SpikingJelly:

  • Install the last stable version from PyPI:
    pip install spikingjelly
  • Install the latest developing version from the source code:
    git clone https://github.com/fangwei123456/spikingjelly.git
    cd spikingjelly
    python setup.py install

Building SNNs Made Easy

With SpikingJelly, constructing SNNs is as effortless as building ANNs in PyTorch. Imagine building a simple toy structure with blocks. Each block represents a layer, and when stacked properly, they create a beautiful outcome.


nn.Sequential(
    layer.Flatten(),
    layer.Linear(28 * 28, 10, bias=False),
    neuron.LIFNode(tau=tau, surrogate_function=surrogate.ATan())
)

This simple architecture, employing a Poisson encoder, can achieve an impressive 92% accuracy on the MNIST dataset.

ANN-SNN Conversion – Fast and Handy

SpikingJelly also provides a convenient interface for converting ANNs to SNNs. Think of it like transforming a classic music piece into a modern remix, where the essence remains, but the style changes.


class ANN(nn.Module):
    def __init__(self):
        super().__init__()
        self.network = nn.Sequential(
            nn.Conv2d(1, 32, 3, 1),
            nn.BatchNorm2d(32, eps=1e-3),
            nn.ReLU(),
            nn.AvgPool2d(2, 2),
            nn.Linear(32, 10)
        )
    def forward(self, x):
        x = self.network(x)
        return x

This architecture can achieve a phenomenal 98.44% accuracy on the MNIST dataset post-conversion.

Enhanced Performance with CUDA

By using CUDA-enhanced neurons, you can speed up the training process, akin to upgrading your bike with a turbo boost for faster rides. SpikingJelly offers different backends to suit your preferences.

Supported Devices

  • ✔️ Nvidia GPU
  • ✔️ CPU

Just as a versatile athlete adapts to different sports, SpikingJelly efficiently runs on both CPU and GPU platforms.

Neuromorphic Datasets

SpikingJelly supports various neuromorphic datasets that can be seamlessly integrated. This is similar to having a curated library of books—you have everything you need for your research all in one place.

Troubleshooting Tips

If you encounter issues while using SpikingJelly, here are some useful pointers:

  • Ensure that you are using a compatible version of PyTorch.
  • Check the documentation for changes in version updates, especially concerning modules that may have been renamed.
  • For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

Conclusion

SpikingJelly streamlines the process of working with Spiking Neural Networks, making it accessible for everyone—from beginners to seasoned developers. Whether you’re building your own models, converting traditional networks, or experimenting with innovative neuronic designs, this framework has got you covered.

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