Ash Vardanian is a founder, researcher, and investor based in London with a decade of experience building high-performance search and multimodal systems. As Founder and "Benevolent Dictator For Life" of Unum he architects search across multilingual text, code, images, video, chemical compounds and biopolymer sequences, combining product vision with academic depth from AI and computational linguistics studies and a Wolfram ML stint. His open-source work—most notably StringZilla—shows hands-on performance engineering, delivering up to 10x speedups by leveraging AVX2/AVX-512, ARM NEON, SVE and SWAR for string, hashing and memory operations. He balances operator chops with capital deployment as a former managing partner of a family office and current venture partner, making late-stage deep-tech investments across Europe, Asia and the US. A former top-grossing iOS app founder and visiting lecturer in data science, he uniquely bridges low-level systems mastery, product execution, and strategic investing.
Up to 10x faster strings for C, C++, Python, Rust, and Swift, leveraging NEON, AVX2, AVX-512, and SWAR to accelerate search, sort, edit distances, alignment scores, etc 🦖
Role in this project:
Back-end Developer / Performance Engineer
Contributions:71 releases, 51 reviews, 40 commits in 2 years 5 months
Contributions summary:Ash's contributions primarily focus on optimizing string manipulation algorithms, specifically for C++ implementations. They developed three distinct C++ implementations for substring search, including a naive approach, one inspired by Rabin-Karp, and an AVX2 instruction set-based version. The user benchmarked the performance of these implementations, highlighting significant speed improvements. They also added optional AVX-512 and ARM Neon implementations and provided additional benchmarks, demonstrating a focus on performance and hardware-level optimization for string operations.
Contributions:93 pushes, 2 branches, 2 issues in 3 years 5 months
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