[itsmemattchung]

I take a similar approach. Python allows me to rapidly prototype and ... gets the job done — fast (in terms of developer productivity). Once performance becomes a main criteria, it's not so difficult to fork/exec some Go/Rust/C/C++ executable.

[rbanffy]

I'm thinking about using MPI for that - it should minimize the fork/exec time. Another approach is the extensive use of queues (which is a good thing anyway) and process the queue messages using a more optimized backend.