The GX code: documentation home

GX is a code for solving the nonlinear gyrokinetic system for low-frequency turbulence in magnetized plasmas using Fourier-Hermite-Laguerre spectral methods. A unique feature of GX is the use of a Hermite-Laguerre velocity discretization, which allows GX to smoothly interpolate between coarse gyrofluid-like resolutions and finer conventional gyrokinetic resolutions.

Another unique feature of GX is that it is a GPU-native code, designed and optimized in CUDA/C++. This means you will need access to an NVIDIA GPU to run GX.

The GX repository is open source and hosted on BitBucket: https://bitbucket.org/gyrokinetics/gx. For references, including the recently published GX paper, see Citing GX.

GX is currently under rapid development, resulting in quickly-changing functionality and capabilities. A number of planned improvements to the code are listed in the issue tracker on BitBucket (https://bitbucket.org/gyrokinetics/gx/issues).

• Installing and building GX
  • Obtaining the source code
  • Building the code
  • Setting up a Python environment for GX
• Getting started with GX
  • Running your first linear simulation (tokamak)
  • Running your first linear simulation (stellarator)
  • Running your first nonlinear simulation
  • Running benchmarks
  • Using multi-GPU parallelization [NEW!]
• Reference pages
  • Inputs
  • Geometric options
  • Outputs
  • Numerics
  • Preparing a GCP VM
• Citing GX
• License