Message 10386
Available since version: 2026.2.0
Description
TUFLOW FV could not find any CUDA-capable GPU devices when initialising the GPU solver. This occurs when GPU mode is enabled (via Hardware == GPU in the control file, or the -pu or -GPU command line arguments) but no compatible NVIDIA GPU is available on the machine, the device is disabled, or the required drivers are not installed.
Suggestions
Verify that a CUDA-capable NVIDIA GPU is installed and enabled on the machine. Run nvidia-smi in the terminal or console to confirm the device is detected by the operating system. If nvidia-smi returns no output or an error, the GPU is not visible to the operating system — check that the device is enabled and that the NVIDIA driver is installed. If nvidia-smi returns device information successfully, ensure the NVIDIA driver is up to date.
If no GPU is available, remove the -pu or -GPU command line argument, or set Hardware == CPU in the control file to run using the CPU-based solver.