libscran/irlba erreicht einen Gesundheitsindex von 47 von 100 und liegt damit im Bereich Schwach. Am stärksten schneidet es bei Engineering Quality (72/100) ab, am schwächsten bei Security (34/100). Zuletzt vor 63 Tagen aktualisiert. Ein einzelner Mitwirkender trägt den Großteil der jüngsten Arbeit.
47
gesamt / 100
Schwach
Software-Gesundheitsindex
Metriken werden auf einer standardisierten Skala von 1–100 in gewichtete Kategorien gruppiert. Der Gesamtwert beginnt als ihr gewichtetes Mittel, kalibriert auf die Verteilung des öffentlichen Registers, sodass die Stufen Perzentilbedeutung tragen; sobald öffentliche Evidenz die Richtlinie für Hochrisikojurisdiktionen auslöst, wird die Bewertung angepasst und erhält die Obergrenze Gefährdet von 34.
47
Außergewöhnlich93-100Die Spitzengruppe des Registers (≈ obere 5 %); erfüllt im Wesentlichen alle geprüften Kriterien
Gut65-79Gesund; Lücken sind begrenzt und beherrschbar
Mittel50-64Akzeptabel mit deutlichen Lücken; Überprüfung empfohlen
Schwach35-49Wesentliche Schwächen in mehreren Bereichen
Gefährdet20-34Erhebliche Schwächen; eine Übernahme erfordert Vorsicht
Kritisch1-19Schwerwiegende Probleme (aufgegeben, nur ein Maintainer, keine Hygiene)
Bewertungsprofil
Jede Achse ist eine Kategorie. Die Form zählt mehr als der Durchschnitt — ein gesundes Projekt füllt die gesamte Fläche, während ein Profil aus Spitzen und Kratern bedeutet, dass Stärke in einer Dimension Risiken in einer anderen verdeckt.
Der gewichtete Gesamtwert 48 wird auf der veröffentlichten Indexskala auf 47 kalibriert (Register-Kalibrierung 2026-08-02).
Dieses Repository wird von einer Organisation getragen — geteilte, rechenschaftspflichtige Trägerschaft, die jeden einzelnen Maintainer überdauern kann.
Release-Aktualität — letztes Release vor 109 Tagen
12.6/27
Release-Rhythmus — ein Release etwa alle 132,5 Tage
0/10
OpenSSF Scorecard: Signed-Releases — keine Daten
Verwendete Eingangsdaten
releases_count
6
latest_release_tag
v3.1.0
releases_from_tags
nein
days_since_latest_release
109
mean_days_between_releases
132,5
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): OpenSSF Scorecard: Signed-Releases. Die verbleibenden Gewichte wurden renormalisiert.
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): ci_tests, packaging, signed_releases. Die verbleibenden Gewichte wurden renormalisiert.
Wie gut ist das Repository dafür ausgestattet, mit KI-Coding-Agenten entwickelt und gepflegt zu werden? Trägt ein bewusst kleines Gewicht (4 %): Agenten-Tooling ist ein echtes Pflegesignal, doch ein Repository ohne jedes Signal kann weiterhin 100/100 erreichen.
Handhabbare Dateigrößen — 0/32 Quelldateien über 60 KB
Verwendete Eingangsdaten
primary_language
C++
largest_source_bytes
20.043
source_files_sampled
32
oversized_source_files
0
Eckdaten
18GitHub-Sterne
2Mitwirkende
36Commits, letzte 12 Monate
63Tage seit letztem Push
6Releases
1Bus-Faktor
3offene Issues
—Paket-Ökosysteme
Warnungen zur Datenerhebung
Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
Weitere Details
Stern- und Fork-Verlauf 0 ★ / 4 ⇿
0Sterne
4Forks
Wann jeder Stern und Fork hinzugefügt wurde, von GitHub erfasst und nach Tagen gruppiert. Das kumulierte Wachstum steht direkt über den täglichen Zugängen, aus denen es besteht, sodass beide gegeneinander lesbar sind: stetiger organischer Zuwachs sieht ganz anders aus als ein abrupter, kurzlebiger Ausschlag. Wo dieser Unterschied messbar ist, wird er als Wachstumsauthentizität ausgewiesen.
Jeder Punkt umfasst 3 Tage.
OpenSSF Scorecard 3.4 / 10
3.4Gesamtwert
Unabhängige, werkzeugneutrale Sicherheitsbewertung durch das quelloffene OpenSSF Scorecard. Jede Prüfung honoriert eine Sicherheits-Praxis, nicht das Werkzeug eines bestimmten Anbieters. Prüfungen, die Scorecard nicht ermitteln konnte, sind mit k. A. markiert und vom Sicherheitswert ausgeschlossen (nie als null gezählt).Scorecard v5.5.0 · 2026-08-03 05:18 UTC
Vollständig aufgelöster Abhängigkeitssatz aus dem GitHub-Abhängigkeitsgraphen: 0 direkte und 0 indirekte (transitive) Pakete. Die transitive Hülle ist vollständig, wenn das Repository eine Lockfile eincheckt.
Registry
Paket
Version
Beziehung
Abhängigkeits-Advisories nicht bewertet
Der Advisory-Abgleich konnte für diesen Bericht nicht ausgeführt werden: No resolved dependencies to assess
JSON-Rohbericht maschinenlesbar
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"body": "- Fiddle with Cmake to get Eigen to build its own install files, otherwise the\n Cmake installation of irlba itself will fail.\n- Switch JacobiSVD options to compile-time parameters. Also use more specific\n SFINAE to detect if a matrix can be directly used in JacobiSVD::compute()\n- Minor testfix as setNbThreads throttles itself to OMP's max threads.",
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"headline": "Updates for compatibility with Eigen 5.0.0. (#18)",
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"body": "This should be fast enough for small matrices. It should also be fine\nfor thin/fat matrices where it might be used as a fallback by compute();\nits quadratic runtime just depends on the smaller dimension anwyay.\n\nAlso increase the rigor of the basic tests by turning down the\nconvergence tolerance so that IRLBA is forced to agree with SVD.\nThis allows us to check all singular triplets at a low error.",
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"headline": "Use the JacobiSVD algorithm everywhere, for consistency.",
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"headline": "Commented on why we use classical Gram-Schmidt instead of the modifie…",
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"body": "The documentation talks about some cursory testing to justify the use of this\nclass, so I should probably keep the tests somewhere before they get lost.",
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"headline": "Added some performance testing for ParallelSparseMatrix. (#15)",
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"body": "Otherwise, the constructor will attempt to coerce its inputs to an ordinary\nEigen matrix. Hopefully this should be a compile-time error, but for sparse\nEigen matrices, this will cause Centered to hold a dangling reference when the\ntemporary Eigen::MatrixXd goes out of scope.",
"is_bot": false,
"headline": "Bugfix for template parameters passed to the Centered definition.",
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"headline": "Protect against false sharing during parallelized sparse multiplication.",
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"body": "We wrap this in an irlba::parallelize() function, which provides a central\n(documented) location to control the parallelization scheme. It also provides\nan easy mechanism to switch out with a custom macro function, which we can't\nuse directly with a lambda because of funky substitution issues.\n\nThis\n[…]\nuires some more care and testing for the EigenThreadScope class because\nthere are multiple ways in which OpenMP could be enabled or disabled, e.g.,\nvia subpar's default or by irlba's custom overrides.",
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"headline": "Switch to subpar::parallelize_simple() for parallelization.",
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"body": "This allows irlba.hpp to be a pure umbrella file. In particular, it can also\ninclude parallel.hpp, which is largely irrelevant to the compute() function\nitself but is needed for applications that call compute().",
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"headline": "Moved the top-level function to its own compute.hpp file.",
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"headline": "Minor fix to the CMake config, ignored Mac gunk.",
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"body": "This should allow Eigen to do its internal optimizations based on storage\norder. We move the previous manual-loop implementation over to the tests so\nthat we can confirm that we used the array methods correctly.",
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"headline": "Simplify realization of the wrappers with Eigen array methods.",
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"oid": "90ee47029e8333f8e3aaec637b595eaf59cbda9c",
"body": "This ensures that we don't make any assumptions about the output matrices being\ncolumn-major (even though this is the default).\n\nWe also add some more (weak) checks for similarity with a naive SVD.",
"is_bot": false,
"headline": "Test that row-major output matrices give the same result.",
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"headline": "Avoid unused variable warning when OpenMP is not available.",
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"body": "This avoids repeated evaluation of template expressions in the multiple\nmethods. Rather, 'rhs' is evaluated once and stored in a buffer, to be\nre-used multiple times in each method.\n\nFor single-use 'rhs', this doesn't matter and the template expression\ncan be forwarded to an Eigen operation.",
"is_bot": false,
"headline": "Realize 'rhs' to an Eigen::Vector if it gets used multiple times.",
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"headline": "Added action for auto-tagging, bumped version for new release.",
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"oid": "a7ac44d375c8ba7e3c6e3d0d784a02e38a22286f",
"body": "Also added an action to check for correct downstream installs.",
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"headline": "Specify required versions of dependencies, emit own version file.",
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"oid": "d169a8e857341ba07bb96282b1498410ae487160",
"body": "Fixed all the associated issues in tests and library code. Unfortunately, we\ncan't aggressively turn all warnings into errors as Eigen itself has some\nissues; so we'll just have to manually watch the warnings and fix them.",
"is_bot": false,
"headline": "Turned on all compiler warnings.",
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"headline": "Updated the Doxyfile, cleaned up README and docstrings.",
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"headline": "Updated actions, build OpenMP tests by default.",
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{
"oid": "53eb056199b87e95bd911dca3ff37013cbd0d39e",
"body": "This replaces the classes with regular functions (plus a dumb Options struct),\r\nwhich is more intuitive for callers. We template all of the Eigen arguments to\r\nallow callers to choose between doubles and floats. We also move the wrapper\r\ninterface documentation to a dedicated MockMatrix class for easier reading.",
"is_bot": false,
"headline": "Refactor to use a more functional style. (#11)",
"author_name": "Aaron Lun",
"author_login": "LTLA",
"committed_at": "2024-06-22T19:14:35Z",
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"oid": "228e207778597c8c3a0284fd2bfe4347dbb4646e",
"body": "This doesn't actually seem to affect all that much in most cases, but it\nmanifests when the true rank is smaller than the number of requested PCs.",
"is_bot": false,
"headline": "Bugfix for the Lanczos iterations... forgot a daxpy.",
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"committed_at": "2023-09-20T06:02:59Z",
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"oid": "bace9baf758ad396c3d1b8d2d090eb92891aee45",
"body": "This provides an option to return something sensible instead of just throwing.",
"is_bot": false,
"headline": "Cap the requested number of values to the maximum available.",
"author_name": "LTLA",
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"committed_at": "2023-09-16T18:47:40Z",
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{
"oid": "e7f4114ef5a42e9e2d3f5eee61d1af6955e3c1c7",
"body": "This automates the recommendation from the R package, to use the exact SVD\r\nwhen the requested number of PCs is >= half the smaller dimension.",
"is_bot": false,
"headline": "Switch to exact SVD when the number of requested SVs is too high. (#10)",
"author_name": "Aaron Lun",
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{
"oid": "c51f48c43fe5eb3bbb6ac1996070b1ff44d4a83c",
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"is_bot": false,
"headline": "Avoid multiple Actions runs inside a PR.",
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"oid": "7e33d0b49f2e5739fa03186e5a5e2bb3751dbfd0",
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"headline": "Slight test fix that was exposed by this change.",
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"oid": "15d6399fc2c9c2ed4755fa0baef373c086fdedd1",
"body": "…rent.",
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"headline": "Fixed Scaled to compile when adjoint/non-adjoint workspaces are diffe…",
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"committed_at": "2023-06-29T15:12:39Z",
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"oid": "0b15631122d0267469823a6bf883ddc9c6698650",
"body": "This allows developers to use it in more places (e.g., for observation-level\nweighting in PCA) without having to define their own specialized wrappers.",
"is_bot": false,
"headline": "Generalize the Scaled wrapper to rows and multiplication.",
"author_name": "LTLA",
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"body": null,
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"headline": "Point to wrappers.hpp for details on the wrapper contract.",
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{
"oid": "0eee555f27aedefad4bd164d7fc93610aed54e13",
"body": "This supports use of find_package in downstream projects to get the new\r\nltla::irlba target; it also enables use of find_package instead of\r\nFetchContent to get CppIrlba's various dependencies.",
"is_bot": false,
"headline": "Add CMake install targets. (#8)",
"author_name": "moritz-h",
"author_login": "moritz-h",
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"headline": "Added more tests for SFINAE checks on the wrappers.",
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"headline": "Removed the unnecessary has_data_method checks.",
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"headline": "Added wrapped_realize utility to simplify the realize() methods.",
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"oid": "7a0b13b5e088b7b8065797097d4da4a53024490b",
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"headline": "Further clean-ups to the docs.",
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"oid": "04273aca0c4ca3838fa7429a32607eff14a2df77",
"body": "These utilities can also be used in third-party code to make it easier\nto develop wrappers without manually checking whether the wrapped object\nis an Eigen matrix-like instance or an irlba wrapper class.",
"is_bot": false,
"headline": "Centralize the decision to call '*' vs 'multiply()' into utilities.",
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{
"oid": "98ac1e7231c0e1d5491f69ec986e33acdeaa93b7",
"body": "Specifically, these are intermediate objects that depend on the RHS in the\r\nwrapper class's multiply or adjoint_multiply methods. We don't want to have to\r\nre-allocate memory for these intermediates upon every call to multiply, so the\r\nidea is to allocate it once in the workspace at the start of the\n[…]\nedWorkspace\r\nclass. This allows wrappers to define their own workspace classes that\r\ncontain the workspace for the wrapped matrix, without needing to worry\r\nabout the exact type of the wrapped matrix.",
"is_bot": false,
"headline": "Require wrappers to implement workspaces for intermediate objects.",
"author_name": "Aaron Lun",
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"headline": "Fixes to docs, comments and error messages.",
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"headline": "Bumped dependencies.",
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"headline": "Avoid unnecessary copying during parallelized multiply.",
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"oid": "f869614019048f84008c18df364b41ebbf2303dd",
"body": "The requirements inherited from libscran don't really apply here, as the\npartitioning of jobs into workers is already performed by the parallel\nmatrix class; the macro function only needs to launch the jobs.",
"is_bot": false,
"headline": "Simplified the custom parallelization macro requirements.",
"author_name": "LTLA",
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{
"oid": "532ec891e32a9667c7a8f9e600d0aa5d2e7a1e19",
"body": "This allows users to control the number of threads in a RAII-compatible\nmanner. Admittedly, it doesn't really belong here, but short of Eigen\nitself adding a thread-scoping mechanism, this is the best we can do.",
"is_bot": false,
"headline": "Migrated EigenThreadScope from libscran.",
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"oid": "a023a651a77aa261f86d723207e686b11dba73eb",
"body": "This ensures that the various coeff() calls inside the multiply methods\ndo not trigger reevaluation of arbitrarily complicated Eigen\nexpressions. Rather, they are evaluated once on input and then freely\naccessed. The exception is for any expressions that support data() -\ni.e., existing VectorXd objects or map/block views - which suggests that\nthe result is already in memory and can be accessed without extra work.",
"is_bot": false,
"headline": "Force realization of non-trivial RHS in parallel multiplication.",
"author_name": "LTLA",
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{
"oid": "c0954d88906aad6184761a469a48f64fa2051c7d",
"body": "This migrates the parallelized sparse matrix from libscran, with some\r\nmodifications for fully templated data representations. It supports\r\nparallelization of sparse multiplication in both orientations relevant to Irlba\r\n(i.e., multiply() and adjoint_multiply()). It also supports parallelization\r\nwith schemes other than OpenMP, for use in environments where OpenMP is not\r\navailable. Of course, OpenMP itself is still supported with explicit num_threads.",
"is_bot": false,
"headline": "Support custom parallelization for sparse matrix multiplication. (#6)",
"author_name": "Aaron Lun",
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"headline": "All run methods are now const.",
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"headline": "Added a license.",
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"headline": "Minor docfixes.",
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{
"key": "issue_template",
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{
"key": "governance",
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"key": "maintainer_resilience",
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{
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"key": "newcomer_pr_acceptance",
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"key": "stewardship",
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"components": [
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{
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{
"key": "engineering",
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"value": 72,
"weight": 0.19,
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{
"key": "tests_present",
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{
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{
"key": "openssf_scorecard_ci_tests",
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{
"key": "documentation",
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"inputs": {
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{
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{
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"components": [
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{
"key": "ai_readiness",
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"key": "ai_agent_context",
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{
"key": "legible_commit_history",
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"detail": "37 of 100 human commits state their intent (structured subject or explanatory body)",
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"status": "partial",
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"code": "legible_history",
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]
},
{
"key": "ai_verify_loop",
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"notes": [],
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"inputs": {
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"components": [
{
"key": "one_command_bootstrap",
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"points": 0,
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"details": [],
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{
"key": "automated_tests",
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"points": 0,
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{
"key": "static_type_checking",
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"detail": "C++ (statically typed)",
"points": 11,
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"max_points": 11
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{
"key": "reproducible_environment",
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"points": 0,
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{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
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"points": 0,
"status": "missed",
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"code": "no_agent_authored_commits",
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],
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{
"key": "automated_maintenance",
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"status": "missed",
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"code": "no_dependency_automation",
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],
"max_points": 8
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{
"key": "openssf_scorecard_pinned_dependencies",
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},
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"key": "ai_code_legibility",
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"notes": [],
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"inputs": {
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"components": [
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"key": "type_checkable_code",
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"status": "met",
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"code": "statically_typed_language",
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{
"key": "manageable_file_sizes",
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"code": "oversized_source_files",
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],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight: agent tooling is a real maintenance signal, but its absence must never gate the top of the scale (calibration saturates at raw 91, so 100/100 remains reachable with AI Readiness at zero)."
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],
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}
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Fehlende Daten werden ausgeschlossen und die Gewichte neu normiert, nie als null bewertet. Die Methodik ist versioniert und offen: Metriken v2.3.1, Schema v0.30.0 — vollständige Methodik · Metriken-Wiki.
