Hello there, I built pytorch from source and noticed some of my training scripts were running slower than I would expect them to.  The output of a pytorch.bottleneck run has:

Environment Summary
PyTorch 1.7.0a0+8864148 DEBUG compiled w/ CUDA 11.0
This seems to suggest pytorch is built in debug mode.  However, in a python shell:
In [3]: torch.version.debug
Out[3]: False
How would I tell for sure if pytorch is built in debug mode?