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ubc-vision / COTR

Code release for "COTR: Correspondence Transformer for Matching Across Images"(ICCV 2021)
Apache License 2.0
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glfw on headless machine #6

Closed PruneTruong closed 3 years ago

PruneTruong commented 3 years ago

Hi, thanks for the great work! I am trying to run the code on a headless server but I get an error with glfw: ends/_glfw.py", line 215, in _vispy_get_native_app
raise OSError('Could not init glfw:\n%r' % _glfw_errors)
OSError: Could not init glfw:
["Error 65544: b'X11: Failed to open display '"].

I did some research, and it seems that glfw does not support headless rendering. Have you ever tried it?

jiangwei221 commented 3 years ago

You can try to run the EGL headless examples from vispy here: https://github.com/vispy/vispy/tree/main/examples/offscreen (I don't have sudo to install libgles2-mesa-dev on my server.) If EGL backend works for your server, then you can modify inference_helper.py, and switch glfw to EGL. Also something from vispy: https://vispy.org/faq.html#how-to-render-headless-off-screen-with-vispy