crew

1.3.2

A Distributed Worker Launcher Framework

5packages depend

55.7Kdownloads / year

100.0%test coverage

13/13checks pass

Overview

About

Maintained by William Michael LandauFirst published 2023-03-2128 releasesCRAN page ↗GitHub ↗

In computationally demanding analysis projects, statisticians and data scientists asynchronously deploy long-running tasks to distributed systems, ranging from traditional clusters to cloud services. The 'NNG'-powered 'mirai' R package by Gao (2023) doi:10.5281/zenodo.7912722 is a sleek and sophisticated scheduler that efficiently processes these intense workloads. The 'crew' package extends 'mirai' with a unifying interface for third-party worker launchers. Inspiration also comes from packages. 'future' by Bengtsson (2021) doi:10.32614/RJ-2021-048, 'rrq' by FitzJohn and Ashton (2023) https://github.com/mrc-ide/rrq, 'clustermq' by Schubert (2019) doi:10.1093/bioinformatics/btz284), and 'batchtools' by Lang, Bischel, and Surmann (2017) doi:10.21105/joss.00135.

Install

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

install.packages("crew", 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("wlandau/crew")

Development version from wlandau/crew. 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-crew

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-crew

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

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

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-crew

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 5.0 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.75

100.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 42%
References docs: 0%

Downloads

55.7K

CRAN downloads in the past year

Rank #2,104 · ~152/day · ~4.6K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.7K30 days

10.8K90 days

55.7K1 year

Compare downloads with other packages →

Also on1.6K r2u3.1K conda_forge16 c2d4u

Repository

GitHub ↗ wlandau/crew

153Stars

4Forks

0Open issues

0Open PRs

30Releases

2,010Commits

4Contributors

r-packagerrstatshigh-performance-computing

2,010 commits · Last activity 2026-07-29 · +0.7% stars, 30d

Stars over time

2025-06-26 · 1442026-07-26 · 153

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/wlandau/crew on 2026-07-30.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Research and citation (1)

codemeta.json

Lint, format, editor (2)

lintrRStudio project

Show all practices

Governance and community (2)

Issue templatesPR template

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

18 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.0.0

Imports (16)

cli collections data.table later mirai nanonext processx promises ps R6 rlangstatstibble tidyselecttoolsutils

LinkingTo (0)

none

Suggests (5)

autometric knitr markdown rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

5direct

0indirect

crew.aws.batch crew.cluster fastreg geotargets targets

Code & Tests

People & History

People (3)

Maintainer (1)

William Michael Landau

Author, Maintainer

Authors (1)

William Michael Landau

Author, Maintainer

Contributors (1)

Daniel Woodie

Contributor · added in 0.2.1

Eli Lilly and Company

Funders (1)

Eli Lilly and Company

Listed in earlier versions (1)

Landau

no longer listed · 0.0.4 to 1.3.2

Package Timeline

28 releases. Pick two to compare their code metrics. R releases are shown for context.

1.3.2Latest
2026-07-30 · current release · diff ↗
1.3.1
2026-05-30 · diff ↗
R
R 4.6.0 released · 2026-04-24
1.3.0
2025-09-13 · diff ↗
1.2.1
2025-06-09 · diff ↗
1.2.0
2025-06-06 · diff ↗
1.1.2
2025-05-08 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.1.0
2025-04-10 · diff ↗
1.0.0
2025-02-03 · diff ↗
0.10.2
2024-11-15 · diff ↗
0.10.1
2024-11-03 · diff ↗
0.10.0
2024-10-11 · diff ↗
0.9.5
2024-06-24 · diff ↗
0.9.4
2024-06-20 · diff ↗
0.9.3
2024-05-22 · diff ↗

Show 17 earlier events

0.9.2
2024-04-24 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.9.1
2024-03-25 · diff ↗
0.9.0
2024-02-08 · diff ↗
0.8.0
2024-01-09 · diff ↗
0.7.0
2023-12-11 · diff ↗
0.6.0
2023-10-12 · diff ↗
0.5.0
2023-09-18 · diff ↗
0.4.0
2023-07-11 · diff ↗
0.3.0
2023-06-26 · diff ↗
0.2.1
2023-05-22 · diff ↗
0.1.1
2023-04-21 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.1.0
2023-04-19 · diff ↗
0.0.5
2023-03-23 · diff ↗
0.0.4
2023-03-21
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2023-03-21
Total releases: 28 / 3 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.0.0
Download size: 762 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

High-Performance and Parallel Computing with R

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