torch not compiled with cuda enabled

Torch Not Compiled With Cuda Enabled

Definition of Torch

Torch is a powerful and versatile open-source machine learning library that provides a wide range of functionalities for building and training neural networks. It is widely used for research and production in the field of deep learning.

At its core, Torch is a scientific computing framework with a focus on numerical computations. It provides an array data structure similar to NumPy and supports efficient GPU acceleration for faster computations. This makes it an ideal choice for training large-scale deep learning models on CUDA-enabled GPUs.

Features of Torch

Torch offers a rich set of features that make it a popular choice among researchers and developers in the machine learning community. Some of the key features of Torch include:

  • Dynamic computation graph: Torch uses a dynamic computation graph, which means that the graph is built on-the-fly as the model is executed. This enables more flexibility and ease in model development and debugging.
  • Extensive library support: Torch provides a wide range of libraries and modules for various machine learning tasks, including image and video processing, natural language processing, and reinforcement learning. This allows researchers and developers to build complex models and solve diverse problems using pre-built components.
  • Seamless integration with Python: Torch provides a Python interface that makes it easy to work with. It can seamlessly integrate with popular Python libraries such as NumPy and SciPy, enabling smooth data manipulation and analysis.
  • GPU acceleration: Torch leverages the power of GPUs to accelerate computations, enabling faster training and inference. By utilizing CUDA-enabled GPUs, Torch can significantly speed up the training process for deep learning models.
  • Strong community support: Torch has a vibrant and active community of developers and researchers who contribute to its development and provide support to users. This ensures that there is a wealth of resources, tutorials, and examples available to help users get started with Torch and address any challenges they may encounter.

Common Error: “Torch Not Compiled With CUDA Enabled”

Reasons For The Error

One common error that users encounter when working with Torch is the message “Torch not compiled with CUDA enabled”. This error typically occurs when Torch is not properly configured to utilize CUDA for GPU acceleration. There are several reasons why this error might occur:

  • Incomplete installation: The Torch installation might be missing the necessary components for CUDA support. This could happen if CUDA was not selected during the installation process or if there was an issue with the installation itself.
  • Outdated version: An older version of Torch might not have CUDA support, or the CUDA version installed on the system could be incompatible with the Torch version being used.
  • Incorrect configuration: The Torch configuration might have been set up incorrectly, preventing it from recognizing and utilizing CUDA for GPU acceleration.

Steps to Check if CUDA is Enabled in Torch

If you encounter the “Torch not compiled with CUDA enabled” error, you can follow these steps to check if CUDA is enabled in Torch:

  1. Verify CUDA installation: Firstly, ensure that CUDA is installed on your system. You can check this by running the command nvcc –version¬†in your terminal, which will display the CUDA version if it is installed.
  2. Check Torch version: Verify that you are using a version of Torch that supports CUDA. You can check the Torch version by running the following Python code: import torch print(torch.version)
  3. Confirm CUDA support: Check if Torch is recognizing CUDA by running the following Python code: import torch print(torch.cuda.is_available())

If the output is False, it means that Torch is not recognizing CUDA, and you need to continue troubleshooting.

How to Fix The Error

If you have confirmed that CUDA is not enabled in Torch, here are some steps you can take to fix the error:

  1. Reinstall Torch with CUDA support: If you find that your current Torch installation does not have CUDA support, you can reinstall Torch with the proper configuration. Make sure to select the CUDA option during the installation process.
  2. Upgrade Torch: If you are using an older version of Torch that does not have CUDA support, consider upgrading to a newer version that includes CUDA compatibility. This can be done by running the command pip install torch –upgrade.
  3. Check Torch configuration: If your Torch installation should have CUDA support, but it is still not recognizing it, check the Torch configuration. Make sure that the CUDA paths and libraries are properly set up. You can refer to the Torch documentation or seek help from the Torch community for specific steps on configuring CUDA.


In this article, I discussed a common error that users often encounter when using Torch, which is the message “Torch not compiled with CUDA enabled.” This error occurs when Torch is not configured properly to utilize CUDA for GPU acceleration. I provided insights into the possible reasons for this error, such as incomplete installation, outdated versions, and incorrect configurations. By following these steps, users can resolve the “Torch not compiled with CUDA enabled” error and take full advantage of Torch’s GPU acceleration for faster and more efficient neural network training. Remember to ensure that your Torch installation is properly configured to leverage the power of CUDA, enabling you to unleash the full potential of your deep learning models.