google/highway
Apr 2026 – Apr 2026
1 Month active
Languages Used
C++
Technical Skills
C++C++ developmentSIMD programmingalgorithm designbuild system managementconditional compilation
Henrik Reinstädtler
PROFILE
Henrik Reinstädtler
Developed a SIMD-accelerated dot product feature for the google/highway repository, focusing on unrolled implementations to enhance performance across float, double, and int32 types. Leveraged C++ and SIMD programming to introduce conditional double-precision support, wrapping doubles with HWY_HAVE_FLOAT64 for improved portability. Migrated the build system to Bazel, streamlining workflows and increasing reliability. Expanded test coverage with randomized inputs to ensure correctness and cross-compiler compatibility, replacing the basic dot product example with a more robust unrolled variant. This work established a foundation for higher throughput numeric workloads and more maintainable builds, emphasizing algorithm design and performance optimization throughout the process.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
1
Lines of code
584
Activity Months1
Work History
April 2026
3 Commits • 1 Features
Apr 1, 2026April 2026: Delivered a SIMD-accelerated dot product feature in google/highway with unrolled implementations and multi-type support, migrated the build system to Bazel, and expanded test coverage across data types. Implementations include conditional double-precision support and a wrapper around doubles via HWY_HAVE_FLOAT64. Replaced the simple dot product example with an unrolled variant to highlight performance improvements. These changes establish a foundation for higher throughput numeric workloads and more reliable builds.
3 Commits • 1 Features
Apr 1, 2026April 2026: Delivered a SIMD-accelerated dot product feature in google/highway with unrolled implementations and multi-type support, migrated the build system to Bazel, and expanded test coverage across data types. Implementations include conditional double-precision support and a wrapper around doubles via HWY_HAVE_FLOAT64. Replaced the simple dot product example with an unrolled variant to highlight performance improvements. These changes establish a foundation for higher throughput numeric workloads and more reliable builds.
April 2026
Activity
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Quality Metrics
Correctness100.0%
Maintainability86.6%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++C++ developmentSIMD programmingalgorithm designbuild system managementconditional compilationfloating-point arithmeticperformance optimization
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