Question regarding the design space for the topology search space in NATS-Bench

[HungYangChang]

Hello Dr. Xuanyi Dong,
Thanks for providing this clear and well-documented NAS tool.
I have a question regarding the design space for the topology search space in NATS-Bench.

Especially, I am referring to the "6.5k" unique architecture for topology search space in TABLE 1.
Could you elaborate on how did you conclude "6.5k" unique architecture?
According to NAS-bench-201, shouldn't it be 5^6 = 15,625 instead of 6.5k?

Thanks for your help in advance.
Hung-Yang

[HungYangChang]

I found out issues-12.py solve my problems:

Here is the result of issues-12.py
2021-04-30 03:41:23] There are 15625 architectures on the topology search space
[2021-04-30 03:41:24] There are 6466 isomorphism architectures on the topology search space

Thanks!