Comments (5)
Verbose log: pbrt_2gpu_verbose.txt
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Setting the CUDA_VISIBLE_DEVICES environment variable to 1 allows pbrt to use the second GPU. Perhaps some piece of the GPU initialization code has GPU 0 hardcoded?
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Sorry for not looking at this sooner (and thanks for all of that information and that tidbit about CUDA_VISIBLE_DEVICES.)
I've pushed a fix that might fix this, but am not sure since I can't repro it locally. When you have a chance, can you let me know if that helps?
If it doesn't, then if you could try a run with a debug build, that'd be fantastic. It would also be interesting to know if it reproduces if you run with --nthreads 1
. (But my hope is that it's now fixed!)
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Yep, that fixed it!
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Yaay!
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