this post was submitted on 29 Jul 2025
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Programming
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I find this paper false/misleading. They just translated one algorithm in many languages, without using the language constructs or specificities to make the algorithm decent performant wise.
Also it doesn’t mean anything, as you aren’t just running your code. You are compiling/transpiling it, testing it, deploying it… and all those operations consume even more energy.
I’d argue that C/C++ projects use the most energy in term of testing due to the quantity of bugs it can present, and the amount of CPU time needed just to compile your 10-20k lines program. Just my 2 cents
The amount of CPU time compiling code is usually negligible compared to CPU time at runtime. Your comparison only really works if you are comparing against something like Rust, where less bugs are introduced due to certain guarantees by the language.
Regarding "language constructs" it really depends on what you mean. For example using numpy in python is kind of cheating because numpy is implemented in C. However using something like the algorithm libraries in Rust woulf be considered fair game since they are likely written in Rust itself.