Wojciech Muła — website

• notes — various technical notes
• articles — optimization, SIMD, algorithms
• #til notes — mostly single-line technical stuff
• contact | Twitter | arXiv | LinkedIn | 500px | bird photos
• polski (archive)

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• [2024-11-11] Myriad sequences of RISC-V code
• [2024-11-09] RISC-V Vector Extension overview

• [2023-11-20] Simple suggestions using popcount
• [2023-05-06] AVX-512 conflict detection without resolving conflicts — faster approach to handle repeated indices
• [2023-04-30] Modern perfect hashing for strings — use of PEXT helps
• [2023-04-09] SIMD-ized faster parse of IPv4 addresses — 2-3 times faster than scalar version
• [2023-03-12] Conversion uint32 into decimal without division nor multiplication
• [2023-03-06] SWAR find any byte from set
• [2023-02-06] AVX512: finding first byte in lanes
• [2023-02-05] Converting binary fraction to ratio
• [2023-02-05] Finding lowest common ancestor of two nodes
• [2023-02-05] Faster fractional exponents — x^{½ + ¼ + 1/8} can be calculated quite fast
• [2023-01-31] AVX512: count trailing zeros — unexpected use of popcount
• [2023-01-21] AVX512: check if value belongs to a set
• [2023-01-19] AVX512: generating constants
• [2023-01-06] AVX512: histogram of sixteen nibbles — a solution to a very specific problem

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