Algorithms for Modern Hardware

What Hacker News says

1. quirinoApr 2026
   On optimizing binary search: https://en.algorithmica.org/hpc/data-structures/binary-searc...
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2. barishnamazovJan 2026
   Also want to share B- tree implementation from the Algorithmica HPC book: https://en.algorithmica.org/hpc/data-structures/b-tree/
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3. josephgJun 2025
   Huh. I'd love to see B-trees thrown in there. Especially using some of the tricks in the excellent "Algorithms for Modern Hardware" book:

   https://en.algorithmica.org/hpc/data-structures/b-tree/

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4. imurrayJun 2025
   This post is for those interested high-performance matrix multiplication in BQN (an APL-like array language).

   The main thing I got out of it was the footnotes, in particular: https://en.algorithmica.org/hpc/algorithms/matmul/ is a really nice post on fast matrix multiplication, and is a chapter of what looks like a nice online book.

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5. ashvardanianApr 2025
   I agree that it may not be the most readable format. So far, the best-structured piece on similar topics I’ve seen is Algorithmica: <https://en.algorithmica.org/hpc>.

   I am sure it overlaps in terms of topics, maybe even some examples, but the homepage suggests that the book is about 500 pages long. I generally don’t have a time budget to read that much, and in most cases, I want to play with the code more than read the text, especially when some new IO_uring feature, a metaprogramming tool, or an Assembly instruction comes out.

   Another observation is that people don’t like to read into 5000-word essays on each topic. At best, those become training materials for the next LLMs and will affect future code only indirectly…

   I’m all ears for alternative formats if you have recommendations, as I generally reimplement such projects every couple of years ;)

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6. josephgOct 2024
   I'd be curious to see how performance would change from storing b-tree entries in a semi-sorted array, and applying various other optimizations from here:

   https://en.algorithmica.org/hpc/data-structures/b-tree/

   The aggregate performance improvements Sergey Slotin gets from applying various "tricks" is insane.

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