"Nothing to run" when specifying algorithm parameter

[Hillier98]

Hi, whenever I try to specify an algorithm parameter I get the following error:

$ python3 run.py --algorithm faiss_hnsw --dataset mnist-784-euclidean
2024-11-13 13:13:19,992 - annb - INFO - running only faiss_hnsw
Traceback (most recent call last):
  File "/home/test/ann-benchmarks/run.py", line 7, in <module>
    main()
  File "/home/test/ann-benchmarks/ann_benchmarks/main.py", line 344, in main
    raise Exception("Nothing to run")
Exception: Nothing to run
$ python3 run.py --algorithm faiss_hnsw
2024-11-13 13:13:26,071 - annb - INFO - running only faiss_hnsw
Traceback (most recent call last):
  File "/home/test/ann-benchmarks/run.py", line 7, in <module>
    main()
  File "/home/test/ann-benchmarks/ann_benchmarks/main.py", line 344, in main
    raise Exception("Nothing to run")
Exception: Nothing to run

However, if I disable the algorithms I don't want to test in the config.yml files and then I just run $ python3 run.py --dataset mnist-784-euclidean or $ python3 run.py, that works. So I think there's a bug; I just thought it may be useful to report it.

[maumueller]

Thanks @Hillier98, I can reproduce this and will look into it.

[raulod]

I am facing the same issue.

[raulod]

any updates please

[raulod]

a gentle reminder to fix

[maumueller]

Sorry, this took me a while. The reason for it not working was more subtle and boiled down to a difference between the folder name and the config name. Since one implementation (e.g., faiss) might support different data structures, these are sometimes only loosely connected.

--list-algorithms with now identify the correct algorithm name, which was hnsw(faiss) in your example.