check gpu in colab
!nvidia-smi -L
how to check gpu activity colab
#On the left side you can open Terminal ('>_' with black background)
#You can run commands from there even when some cell is running
#Write command to see GPU usage in real-time:
$ watch nvidia-smi
current google colab gpu
Time (s) to convolve 32x7x7x3 filter over random 100x100x100x3 images (batch x height x width x channel). Sum of ten runs.
CPU (s):
3.862475891000031
GPU (s):
0.10837535100017703
GPU speedup over CPU: 35x
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