Specify GPU index for EGL rendering

[jimmyyhwu]

On multi-gpu machines, EGL rendering always creates a process on GPU 0. Is there a way to specify (something akin to CUDA_VISIBLE_DEVICES) which GPU to use?

[fxia22]

You can use EGL_PLATFORM_DEVICE_EXT, here is an example:

https://github.com/StanfordVL/iGibson/blob/master/gibson2/core/render/cpp/Mesh_renderer.cpp#L153

https://github.com/StanfordVL/iGibson/blob/master/gibson2/core/render/cpp/Mesh_renderer.cpp#L171-L172