PyTorch RuntimeError: CUDA error: no kernel image is available for execution on the device

The CUDA version is not compatible with the GPU architecture.

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What is

PyTorch RuntimeError: CUDA error: no kernel image is available for execution on the device

?

Understanding PyTorch and Its Purpose

PyTorch is a popular open-source machine learning library developed by Facebook's AI Research lab. It is widely used for applications such as computer vision and natural language processing. PyTorch provides a flexible platform for building deep learning models and supports dynamic computation graphs, which makes it a preferred choice for researchers and developers.

Identifying the Symptom

When working with PyTorch, you might encounter the following error message: RuntimeError: CUDA error: no kernel image is available for execution on the device. This error typically arises when attempting to execute a PyTorch script on a GPU.

What You Observe

The script fails to execute, and the error message indicates that there is an issue with the CUDA kernel image availability for your device.

Explaining the Issue

This error occurs when the CUDA version installed on your system is not compatible with the architecture of your GPU. CUDA is a parallel computing platform and application programming interface (API) model created by NVIDIA. It allows developers to use a CUDA-enabled graphics processing unit (GPU) for general purpose processing.

Understanding CUDA Compatibility

Each GPU has a specific compute capability, and CUDA versions support specific ranges of these capabilities. If your CUDA version does not support the compute capability of your GPU, you will encounter this error.

Steps to Fix the Issue

To resolve this issue, you need to ensure that your CUDA version is compatible with your GPU's architecture. Here are the steps to fix the problem:

Step 1: Check Your GPU's Compute Capability

First, identify your GPU model and its compute capability. You can find this information on the NVIDIA CUDA GPUs page.

Step 2: Verify Your CUDA Version

Check the version of CUDA installed on your system. You can do this by running the following command in your terminal:

nvcc --version

This command will display the CUDA version currently installed.

Step 3: Ensure Compatibility

Refer to the CUDA Toolkit Release Notes to verify that your CUDA version supports your GPU's compute capability.

Step 4: Update CUDA or GPU Driver

If there is a mismatch, you may need to update your CUDA version or GPU driver. You can download the latest CUDA Toolkit from the NVIDIA Developer website. Ensure that you follow the installation instructions specific to your operating system.

Conclusion

By ensuring compatibility between your CUDA version and GPU architecture, you can resolve the RuntimeError: CUDA error: no kernel image is available for execution on the device error. This will allow you to leverage the full power of your GPU for deep learning tasks using PyTorch.

Attached error:

PyTorch RuntimeError: CUDA error: no kernel image is available for execution on the device

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