{"adoption": {"forks": 306, "observed_at": "2026-08-28T04:07:16.492957+00:00", "stars": 2740}, "canonical_url": "https://ross.abutalabs.com/products/xsimd", "card": {"archived": false, "artifact_type": "library", "description": "C++ wrappers for SIMD intrinsics and parallelized, optimized mathematical functions (SSE, AVX, AVX512, NEON, SVE, WebAssembly, VSX, RISC-V))", "domain": ["performance", "developer-tools"], "enriched": true, "function": ["math", "graphics", "developer-tools"], "health_score": 79, "homepage": "https://xsimd.readthedocs.io/", "language": "C++", "license": "BSD-3-Clause", "license_family": "permissive", "maturity": "stable", "member_repos": ["xtensor-stack/xsimd"], "name": "xtensor-stack/xsimd", "platform": ["cpp", "cross-platform", "wasm"], "pushed_at": "2026-08-21T22:17:21+00:00", "repo": "xtensor-stack/xsimd", "stars": 2740, "tags": ["simd", "vectorization", "sse", "avx", "avx512", "neon", "sve", "risc-v", "wasm", "vsx", "cpp17", "header-only", "mathematical-functions", "algorithms", "gpu"], "topics": ["simd-intrinsics", "vectorization", "simd", "cpp", "avx", "neon", "sse", "avx512", "simd-instructions", "mathematical-functions", "sve", "vsx", "wasm", "cpp17"], "urls": [], "use_cases": ["write portable SIMD-accelerated numeric code across x86 and ARM", "speed up math-heavy loops with vectorized batches", "use SIMD intrinsics without writing per-architecture code", "accelerate mathematical functions like exp, sin, log on batches", "target WebAssembly SIMD from C++", "build a numeric library that supports multiple SIMD ISAs"], "what_it_is": "xsimd is a C++ library providing unified wrappers over SIMD intrinsics (SSE, AVX, AVX512, NEON, SVE, WebAssembly, VSX, RISC-V) so the same code runs across architectures. It lets you manipulate batches of numbers with standard arithmetic operators and includes optimized parallelized mathematical functions.", "when_to_avoid": ["you want the compiler to auto-vectorize without explicit SIMD code", "you need GPU acceleration rather than CPU SIMD", "your project is not C++17-capable"], "when_to_choose": ["you need explicit SIMD vectorization with a portable C++ API", "you want to support many ISAs (x86, ARM, RISC-V, WASM) from one codebase", "you are writing performance-critical math or signal processing code in C++"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/xsimd", "repo": "xtensor-stack/xsimd", "role": "main", "score": 76}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:07:16.492957+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T08:19:10.624660+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "583e5b8bab6057078373170d94d437d0cfe238c27109ceb2fa7521062c22797e", "fetched_at": "2026-08-28T04:07:16.492957+00:00", "kind": "readme", "missing": false, "url": "https://github.com/xtensor-stack/xsimd"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 98, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3848, "days_push": 12, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 76, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}