R Observatory: Metrics for parallelly version 1.48.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

parallelly

1.48.0Package record

Enhancing the 'parallel' Package

89packages dependsuggested by 36

4.2Mdownloads / year

64.0%test coverage

13/13flavors OK

Overview

About

Maintained by Henrik BengtssonCRAN page ↗GitHub ↗Website ↗Issues ↗

Utility functions that enhance the 'parallel' package and support the built-in parallel backends of the 'future' package. For example, availableCores() gives the number of CPU cores available to your R process as given by the operating system, 'cgroups' and Linux containers, R options, and environment variables, including those set by job schedulers on high-performance compute clusters. If none is set, it will fall back to parallel::detectCores(). Another example is 'parallel::makeCluster(type = "RPSOCK")', which is backward compatible with 'parallel::makeCluster()' while doing a better job in setting up remote cluster workers without the need for configuring the firewall to do port-forwarding to your local computer.

Changes in 1.48.0

New Features

availableCores() and availableWorkers() gained support for R options parallelly.availableCores.methods.excludes and parallelly.availableWorkers.methods.excludes (with corresponding environment variables) to specify lookup methods to be excluded by default.
makeClusterPSOCK() and makeNodePSOCK() gained argument rscript_call to customize the parallel worker loop, which defaults to parallel:::.workRSOCK().
Add internal worker loop parallelly:::workRPSOCK() that takes optional argument workCommand to customize the default parallel:::workCommand().

Show all changes in 1.48.0Hide the rest of the changes in 1.48.0

Analogusly to availableCores(), availableWorkers() queries also Linux CGroups v2 CPU affinity values cpuset.cpus and cpuset.cpus.effective.

Bug Fixes

availableCores(methods = "cgroups2.cpuset.cpus") would produce "Error : 'length(cpuset) <= max_cores' is not TRUE" if CGroups v2 'cpuset.cpus' comprised an empty string.
availableCores(methods = "cgroups2.cpuset.cpus.effective") would produce "Error in if (any(value < 0L | value >= max_cores)) { : missing value where TRUE/FALSE needed" if parallel::detectCores() returned a missing value.
Now makeClusterPSOCK(workers) produces a more informative error message if workers is not an integer or a character vector.

From NEWS.md in the release

Install

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

install.packages("parallelly", 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("futureverse/parallelly")

Development version from futureverse/parallelly. 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-parallelly

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-parallelly

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-parallelly

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 4.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-04-30
ERROR12 OK, 1 ERROR2026-04-28
OK14 OK2026-03-31

Show 2 earlier changesHide 2 earlier changes

ERROR13 OK, 1 ERROR2026-03-28
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.48.0

README· In the repository, left out of the releaseVignettesYes · 9 · staticNEWSYes · 100% structured · mentions 1.48.0Citation fileNoWebsiteYes · pkgdown

Help pages: 24 (5 internal)
Examples that run: 83%15 run in a plain check (2 of them under a condition) · 2 only when donttest examples are enabled (R CMD check --as-cran) · 1 never run
Exported functions with examples: 85%
Documented parameters: 90%
Return-value docs: 100%
Help pages citing references: 21%

Vignettes (9)

How these are measured

Downloads

4.2M

CRAN downloads in the past year

Rank #182 · ~11.4K/day · ~346.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

306.9K30 days

932K90 days

4.2M1 year

Compare downloads with other packages →

Also on112.8K r2u7 autocran502.3K conda_forge18.2K c2d4u

How downloads are counted

Repository

futureverse/parallelly ↗Organization: futureverse

140Stars

10Forks

24Open issues

2Open PRs

0Releases

1,265Commits

2Commit identities

rpackageparallel-computing

1,265 commits · Last activity 2026-10-09 · 0% stars, 30d · Default branch at 1.48.0-9067, ahead of CRAN 1.48.0 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): 50%
Median days to close, 50 most recently updated closed issues: 5
Median days to close, 50 most recently updated closed PRs: 2

Stars over time

2025-10-10 · 1352026-09-14 · 140

How these are measured

PracticesBeta

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

Checks run against github.com/futureverse/parallelly on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Governance and community (3)

Code of conduct (inherited from futureverse)Contributing guide (inherited from futureverse)Issue templates

Docs source (2)

pkgdown

GitHub Pages site last deployed 2026-10-07

pkgdown site last built 2026-10-07

Coverage (1)

Coverage reporting

Show all practicesHide 3 practices

Reproducibility and dev environment (1)

Makefile

CRAN release process (1)

revdep/

Research and citation (1)

CITATION.cff

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing parallelly adds no packages beyond those that come with R.

Depends (0)

none

Imports (3)

paralleltoolsutils

LinkingTo (0)

none

Suggests (2)

commonmark base64enc

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

89direct

1,309indirect

Depends 1 · Imports 88

Suggested by 36

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 41 more dependents and 36 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

People & History

People (2)

Henrik Bengtsson

Mike Cheng

Contributor · added in 1.38.0

Releases (36)

Pick two releases to compare their code metrics.

1.48.0Latest
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2026-06-29 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.47.0
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2026-04-17 · diff ↗
1.46.1
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2026-01-08 · diff ↗
1.46.0
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2025-12-12 · diff ↗
1.45.1
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2025-07-24 · diff ↗
1.45.0
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2025-06-02 · diff ↗
1.44.0
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2025-05-07 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.43.0
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2025-03-24 · diff ↗ ·
removed 2 exports
MPI, PSOCK

added 2 exports
RMPI, RPSOCK
1.42.0
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2025-01-30 · diff ↗
1.41.0
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2024-12-18 · diff ↗
1.40.1
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2024-12-04 · diff ↗
1.40.0
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2024-12-03 · diff ↗
1.39.0
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2024-11-07 · diff ↗
1.38.0
record
2024-07-27 · diff ↗ ·
added 3 exports
MPI, PSOCK, serializedSize

Show 27 earlier eventsHide 27 earlier events

R
R 4.4.0 released · 2024-04-24
1.37.1
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2024-02-29 · diff ↗
1.37.0
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2024-02-14 · diff ↗
1.36.0
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2023-05-26 · diff ↗ ·
added 1 export
cloneNode
R
R 4.3.0 released · 2023-04-21
1.35.0
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2023-03-23 · diff ↗
1.34.0
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2023-01-13 · diff ↗
1.33.0
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2022-12-14 · diff ↗ ·
added 1 export
killNode
1.32.1
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2022-07-21 · diff ↗
1.32.0
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2022-06-07 · diff ↗
1.31.1
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2022-04-22 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.31.0
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2022-04-07 · diff ↗
1.30.0
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2021-12-17 · diff ↗
1.29.0
record
2021-11-21 · diff ↗
1.28.1
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2021-09-09 · diff ↗ ·
added 2 exports
isForkedChild, isNodeAlive
1.27.0
record
2021-07-19 · diff ↗
1.26.1
record
2021-06-30 · diff ↗
1.26.0
record
2021-06-09 · diff ↗ ·
added 1 export
freePort
R
R 4.1.0 released · 2021-05-18
1.25.0
record
2021-04-30 · diff ↗
1.24.0
record
2021-03-14 · diff ↗ ·
added 2 exports
isForkedNode, isLocalhostNode
1.23.0
record
2021-01-04 · diff ↗ ·
added 2 exports
availableConnections, freeConnections
1.22.0
record
2020-12-13 · diff ↗ ·
added 2 exports
cpuLoad, freeCores
1.21.0
record
2020-10-27 · diff ↗ ·
removed 1 export
find_rshcmd
1.20.0
record
2020-10-20
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-10-20
Total releases: 36 / 6 yrs
License: LGPL (>= 2.1)
Download size: 343 KB

Appears in task views

High-Performance and Parallel Computing with R

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("parallelly")

Format

Bengtsson, H., & Cheng, M. (2026). parallelly: Enhancing the 'parallel' Package (Version 1.48.0) [Computer software]. https://doi.org/10.32614/CRAN.package.parallelly

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

The repository also keeps a CITATION.cff.

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 parallelly version 1.48.0 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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