How to enable GPU?

[cslxiao]

I ran the demo demo_VEH_HMMWV, but it didn't use the NVIDIA GPU. So it is really slow. How to solve it?
Btw, my nvidia driver and cuda is OK and I can run deep learning programs.

❯ ./demo_VEH_HMMWV
Copyright (c) 2017 projectchrono.org
Chrono version: 8.0.0

Combined Force calculation!
Desired section [DEFLECTION_LOAD_CURVE] not found, using linear vertical stiffness.
Desired section [BOTTOMING_CURVE] not found, no bottoming stiffness set.
Combined Force calculation!
Desired section [DEFLECTION_LOAD_CURVE] not found, using linear vertical stiffness.
Desired section [BOTTOMING_CURVE] not found, no bottoming stiffness set.
Combined Force calculation!
Desired section [DEFLECTION_LOAD_CURVE] not found, using linear vertical stiffness.
Desired section [BOTTOMING_CURVE] not found, no bottoming stiffness set.
Combined Force calculation!
Desired section [DEFLECTION_LOAD_CURVE] not found, using linear vertical stiffness.
Desired section [BOTTOMING_CURVE] not found, no bottoming stiffness set.
Irrlicht Engine version 1.8.4
Linux 5.15.0-89-generic #99~20.04.1-Ubuntu SMP Thu Nov 2 15:16:47 UTC 2023 x86_64
Using plain X visual
This driver is not available in Linux. Try OpenGL or Software renderer.
Cannot use default video driver - fall back to OpenGL
Irrlicht Engine version 1.8.4
Linux 5.15.0-89-generic #99~20.04.1-Ubuntu SMP Thu Nov 2 15:16:47 UTC 2023 x86_64
Using renderer: OpenGL 4.6
Mesa Intel(R) UHD Graphics (CML GT2): Intel
OpenGL driver version is 1.2 or better.
GLSL version: 4.6

[dariomangoni]

Hi, please give a look at answer at your very similar question made in Issues: #474