highfleet-ship-opt
egg
highfleet-ship-opt | egg | |
---|---|---|
4 | 25 | |
6 | 1,242 | |
- | 2.9% | |
10.0 | 6.8 | |
about 2 years ago | 20 days ago | |
C++ | Rust | |
GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
highfleet-ship-opt
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Enhancing the Factorio experience with SAT solvers
This is my favorite pastime as well! Well done. I've also dipped my toes in the "over engineer a game" with:
A highfleet ship optimizer which chooses optimal module sets using ILP at
https://hfopt.jodavaho.io
And a hunt showdown loadout A/B test package that lets you run stats queries on your game journal at (for now)
https://crates.io/crates/kda-tools
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Ask HN: Tell us about your project that's not done yet but you want feedback on
If you play "Highfleet" at all, can you poke around https://hfopt.jodavaho.io and see if you can get it to generate module lists that make sense?
It's an optimizer, just add what you know you want, set some cost / range / speed limits, and it will output the cheapest version of the ship that includes all required modules and has all requested stats.
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Ask HN: What is new in Algorithms / Data Structures these days?
I used a MILP solver to optimize my ship loadouts in Highfleet. It's rugged-looking, but works great. https://hfopt.jodavaho.io
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Any have updated modules requirements and stats calculations for 1.16?
If you are a bit more techy, a working python version is available here: https://github.com/jodavaho/highfleet-ship-opt
egg
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An Introduction to Graph Theory
Maybe program optimization?
https://egraphs-good.github.io/
- The E-graph extraction problem is NP-complete
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What is the state of the art for creating domain-specific languages (DSLs) with Rust?
For semantic analyzers, check out egg and egglog. They're custom data structures for representing compiler rewrite rules in a non-destructive way.
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Ask HN: What is new in Algorithms / Data Structures these days?
E-graphs are pretty awesome, and worth keeping in your back pocket. They're like union-find structures, except they also maintain congruence relations (i.e. if `x` and `y` are in the same set, then `f(x)` and `f(y)` must likewise be in the same set).
https://egraphs-good.github.io/
(Incidentally, union-find structures are also great to know about. But they're not exactly "new".)
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What are the current hot topics in type theory and static analysis?
I would add that Equality saturation/E-graphs has become quite a hot topic recently, since their POPL21 paper, with workshops dedicated to applications of e-graphs. They have even recently been added to Cranelift as an IR for optimizations.
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Compiler Optimizations Are Hard Because They Forget
Egraphs solve the rewrite ordering problem quite nicely. https://egraphs-good.github.io/
Note that one solution to this problem is to use equality saturation (which, coincidentally, has a great implementation in rust!).
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Modularity in IR representation and modification
Have you thought about trying to parallelize e-graphs? This way you can do a bunch of rewrite rules in parallel and then extract your desired graph at the end instead of having conflicts.
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Any recommendations for good resources that show how algorithms and data structures are converted into fpga circuits
I think the equality saturation papers are a good start. A good start is egg. They have a presentation, a research paper and code you can play with. I think ultimately you want to translate arithmetic operations into logical operation that can be understood by the fpga. So I think it would be good to research how adders and multipliers are implemented in logic and ultimately include equalities between adders/multipliers with their logical counterpart. Note the this translation also depends on the representations of your numbers and their bit width.
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Strategies for doing symbolic integration algorithmically
For rewriting, you may also find interesing equality saturation: https://egraphs-good.github.io/
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