R Observatory: Metrics for clarabel version 0.11.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

clarabel

0.11.3Package record

Interior Point Conic Optimization Solver

5packages dependsuggested by 3

153.3Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Balasubramanian NarasimhanCRAN page ↗GitHub ↗Website ↗Issues ↗

A versatile interior point solver that solves linear programs (LPs), quadratic programs (QPs), second-order cone programs (SOCPs), semidefinite programs (SDPs), and problems with exponential and power cone constraints (https://clarabel.org/stable/). For quadratic objectives, unlike interior point solvers based on the standard homogeneous self-dual embedding (HSDE) model, Clarabel handles quadratic objective without requiring any epigraphical reformulation of its objective function. It can therefore be significantly faster than other HSDE-based solvers for problems with quadratic objective functions. Infeasible problems are detected using using a homogeneous embedding technique.

Changes in 0.11.3

clarabel_control() defaults now match Clarabel.rs exactly. Several had fallen behind upstream:
Chordal decomposition is now **enabled by default** for semidefinite programs: chordal_decomposition_enable, chordal_decomposition_compact and chordal_decomposition_complete_dual are TRUE, and chordal_decomposition_merge_method is "clique_graph". On a semidefinite program with a decomposable sparsity pattern this is dramatically faster — on a banded example with a 120x120 semidefinite cone, 0.007 seconds against 422 seconds. Two consequences: the dual variables reported for semidefinite constraints are not in general the same as before, and data updates are blocked when a decomposition actually takes place. Linear, quadratic and second-order cone problems are unaffected and remain updatable. Pass chordal_decomposition_enable = FALSE for the previous behavior.

Show all changes in 0.11.3Hide the rest of the changes in 0.11.3

reduced_tol_infeas_abs is now 5e-12, not 5e-5, matching upstream since Clarabel.rs v0.10.0. Smaller means *less* margin required, so the previous value was stricter than upstream; the change makes AlmostPrimalInfeasible and AlmostDualInfeasible marginally easier to reach on borderline problems.
direct_solve_method is now "auto", not "qdldl", matching upstream since v0.11.0. This build links only the QDLDL solver, so "auto" resolves to the same code path and results are unchanged.
Removed two direct_solve_method options that never worked: "cholmod" (never existed in Clarabel.rs; it is a Clarabel.jl option) and "mkl" (requires a Pardiso feature this build does not enable). The accepted values are "auto" and "qdldl".
Corrected the documented defaults for tol_ktratio (1e-6, was documented as 1e-7) and iterative_refinement_reltol (1e-13, was documented as 1e-12). The code was already correct; only the help page was wrong.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)

install.packages("clarabel", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("oxfordcontrol/clarabel-r")

Development version from oxfordcontrol/clarabel-r. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-clarabel

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-clarabel

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 8.5 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-10-12
ERROR12 OK, 1 ERROR2026-10-09
OK13 OK2026-09-25
ERROR12 OK, 1 ERROR2026-09-15
OK13 OK2026-09-04

Show 19 earlier changesHide 19 earlier changes

ERROR12 OK, 1 ERROR2026-08-30
OK13 OK2026-08-09
ERROR12 OK, 1 ERROR2026-08-06
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-07-30
NOTE12 OK, 1 NOTE2026-07-29
OK13 OK2026-07-05
ERROR12 OK, 1 ERROR2026-07-03
OK13 OK2026-06-12
ERROR11 OK, 2 ERROR2026-06-01
OK13 OK2026-05-29
ERROR12 OK, 1 ERROR2026-05-26
OK12 OK2026-04-25
NOTE11 OK, 3 NOTE2026-03-21
ERROR11 OK, 2 NOTE, 1 ERROR2026-03-18
NOTE11 OK, 3 NOTE2026-03-17
ERROR11 OK, 2 NOTE, 1 ERROR2026-03-12
NOTE11 OK, 3 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.11.3

READMEYes · 71 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 0.11.3Citation fileYes · cites a publicationWebsiteYes · pkgdown

Help pages: 9 (1 internal)includes a package overview page
Examples that run: 43%3 run in a plain check · 4 never run
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (1)

Clarabel Solver Examples HTML

How these are measured

Downloads

153.3K

CRAN downloads in the past year

Rank #1,044 · ~420/day · ~12.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

13.6K30 days

36.8K90 days

153.3K1 year

Compare downloads with other packages →

Also on2.4K r2u2.8K conda_forge47 c2d4u

How downloads are counted

Repository

oxfordcontrol/clarabel-r ↗Organization: oxfordcontrol

11Stars

3Forks

1Open issues

0Open PRs

8Releases

109Commits

3Commit identities

109 commits · Last activity 2026-08-23 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 94%
Median days to close, 50 most recently updated closed issues: 10
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2024-09-09 · 102026-07-07 · 11

How these are measured

PracticesBeta

5 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/oxfordcontrol/clarabel-r on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (2)

pkgdown

GitHub Pages site last deployed 2026-08-23

pkgdown site last built 2026-08-23

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v3 (2026-09-26)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-02-14
Named in .Rbuildignore: .claude, CLAUDE.md
Pull request it wrote: opened by a project member
Commits: at least 13 crediting it in the message

Models named in its commits

Claude Opus 4.612 commits · Feb 2026
Claude Fable 51 commit · Jul 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing clarabel adds 1 package (1 with compiled code, 629 KB of source tarballs). Heaviest: cli 629 KB.

Depends (0)

none

Imports (2)

climethods

LinkingTo (0)

none

Suggests (4)

knitrMatrixrmarkdown tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

5direct

46indirect

Imports 5

Suggested by 3

Depends, Imports or LinkingTo, most downloaded first

CVXR aramappings pensynth diffcp ROI.plugin.clarabel

Suggests, most downloaded first

optweight EmpiricalDynamics BsplineQuantReg

How these are counted

Code & Tests

People & History

People (6)

Balasubramanian Narasimhan

Author, Maintainer since 0.4.1 (2023)

Yuwen Chen

Author

Paul Goulart

Author, Copyright holder

The authors of the dependency Rust crates

Contributor

see inst/AUTHORS file for details

Hiroaki Yutani

Contributor

For vendoring/Makefile hints/R scripts for generating crate authors/licenses

David Zimmermann-Kollenda

Contributor · added in 0.10.0

For configure scripts and tools/msvr.R lifted from rtiktoken package

Releases (9)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.11.3Latest
record
2026-03-01 · current release · diff ↗
0.11.2
record
2026-03-01 · diff ↗ ·
added 4 exports
clarabel_solver, solver_is_update_allowed, solver_solve, solver_update
0.11.1
record
2025-09-24 · diff ↗
0.10.1
record
2025-04-17 · diff ↗
R
R 4.5.0 released · 2025-04-11
0.10.0
record
2025-02-18 · diff ↗
0.9.0.1
record
2024-09-03 · diff ↗
0.9.0
record
2024-06-22 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.5.1
record
2023-06-24 · diff ↗
0.4.1
record
2023-04-25
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-04-25
Total releases: 9 / 3 yrs
License: Apache License (== 2.0)
Download size: 5.7 MB

Appears in task views

Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' entry:

citation("clarabel")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.48550/arxiv.2405.12762, 10.1016/j.ifacol.2020.12.1255, 10.48550/arxiv.2305.12275.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for clarabel version 0.11.3 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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