merrymercy commented on pull request #6671: URL: https://github.com/apache/incubator-tvm/pull/6671#issuecomment-708845921
Autotvm uses a lot of python multiprocessing and I expect it will be much slower when using spawn. AutoTVM uses multiprocessing for feature extraction. So it needs to launch about 50,000 processes every measurement batch. Ansor does not rely on multiprocessing too much. So the situation for Ansor is better. However, I'd like to see benchmark numbers about fork vs. spawn. i.e. Run a search with `n-trials=64` with (Ansor, AutoTVM) x (fork, spawn) X (CPU, GPU) (Optional) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
