Files
Mujoco_WASM/mjx
Google DeepMind 521d152ec5 Enable Warp execution on CPU devices in MJX.
This change modifies the Warp JAX FFI to register callbacks for both CUDA and CPU platforms, allowing Warp kernels to be launched on CPU devices. MJX's io.py is updated to allow Warp to use CPU devices if no CUDA GPU is available. Tests are adjusted to no longer skip when CUDA GPUs are absent. A minor fix for sorting precision in test_util.py is also included.

Kristian Hartikainen
 - https://github.com/google-deepmind/mujoco/pull/2948

Github issue - https://github.com/google-deepmind/mujoco/issues/2947

PiperOrigin-RevId: 906018844
Change-Id: I9c026b4a4e2a0276d5d3af3954fd027cf75b6d7a
2026-04-26 14:19:34 -07:00
..
2025-01-23 02:51:51 -08:00

MuJoCo XLA (MJX)

PyPI Python Version PyPI version

This package is a re-implementation of the MuJoCo physics engine in JAX. This library is developed and maintained by Google DeepMind, and is kept up-to-date with the latest developments in MuJoCo itself.

The mujoco-mjx package is API-compatible with MuJoCo, but is missing some features found in MuJoCo. See our documentation for more details concerning feature parity.

Installation

The recommended way to install this package is via PyPI:

pip install mujoco-mjx

Usage

Once installed, the package can be imported via from mujoco import mjx. Please consult our documentation for further detail on the package's API.

We recommend going through the tutorial notebook which introduces the MJX API and trains a reinforcement learning policy in a few minutes: Open In
Colab

Versioning

The major.minor.micro portion of the version number matches the version of MuJoCo that this library provides. Optionally, if we release updates to MJX that target the same version of MuJoCo, a .postN suffix is added, for example 3.0.1.post2 represents the second update to MJX for MuJoCo 3.0.1.

License and Disclaimer

Copyright 2023 DeepMind Technologies Limited

MuJoCo and its libraries are licensed under the Apache License, Version 2.0. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0.

This is not an officially supported Google product.