R Observatory: Metrics for mirai version 2.7.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

mirai

2.7.3Package record

Minimalist Async Evaluation Framework for R

37packages dependsuggested by 49

755.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Charlie GaoCRAN page ↗GitHub ↗Website ↗Issues ↗Declared funder: Posit Software, PBC

Evaluates R expressions asynchronously and in parallel, locally or distributed across networks. An official parallel cluster type for R. Built on 'nanonext' and 'NNG', its non-polling, event-driven architecture scales from a laptop to thousands of processes across high-performance computing clusters and cloud platforms. Features FIFO scheduling with task cancellation and bounded queues, promises for reactive programming, 'OpenTelemetry' distributed tracing, and custom serialization for cross-language data types.

Changes in 2.7.3

Updates

Fixes a custom unserialization function (ufunc) that errors crashing the daemon; the object now unserializes as an 'errorValue' 1000 instead (thanks @eitsupi, #646).
Requires nanonext >= 1.10.3.

From NEWS.md in the release

Install

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

install.packages("mirai", 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("r-lib/mirai")

Development version from r-lib/mirai. 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-mirai

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-mirai

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-mirai

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: 1.8 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-10-02
ERROR12 OK, 1 ERROR2026-10-01
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-08

Show 4 earlier changesHide 4 earlier changes

ERROR12 OK, 1 ERROR2026-06-07
OK13 OK2026-05-09
ERROR11 OK, 2 ERROR2026-04-28
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.7.3

READMEYes · 566 wordsVignettesYes · 8 · staticNEWSYes · 100% structured · mentions 2.7.3Citation fileNoWebsiteYes · pkgdown

Help pages: 33 (2 internal)includes a package overview page
Examples that run: 100%29 run in a plain check (17 of them under a condition)
Exported functions with examples: 90%
Documented parameters: 100%
Return-value docs: 97%
Help pages citing references: 0%

Vignettes (8)

How these are measured

Downloads

755.1K

CRAN downloads in the past year

Rank #507 · ~2.1K/day · ~62.9K/mo

Releases R versions

Daily download trend is not available in this view yet.

42K30 days

144K90 days

755.1K1 year

Compare downloads with other packages →

Also on35.8K r2u7 autocran7.9K conda_forge41 c2d4u

How downloads are counted

Repository

r-lib/mirai ↗Organization: r-lib

345Stars

19Forks

6Open issues

1Open PRs

53Releases

2,132Commits

12Commit identities

rconcurrencydistributed-computinghigh-performance-computingasynchronous-tasksparallel-computingasync

2,132 commits · Last activity 2026-10-19 · +1.2% stars, 30d · Default branch at 2.7.3.9000, ahead of CRAN 2.7.3 (checked 2026-10-18) · Discussions: 72 posts

Responsiveness

How these are sampled

PRs merged (all time): 96%
Median days to close, 50 most recently updated closed issues: 1
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-07 · 2872026-10-19 · 345

How these are measured

PracticesBeta

13 development-tooling and community-health practices detected across 8 families in the upstream repository

Checks run against github.com/r-lib/mirai 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

Governance and community (1)

Code of conduct

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-10-16 · The repository has a site deploy workflow

pkgdown site last built 2026-09-24

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 4 practices

CRAN release process (1)

cran-comments.md

For agents and models (1)

Agent skills

Lint, format, editor (2)

AirRStudio project

Git structural (1)

blame-ignore revs

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

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2025-10-15
Seen in the repository: CLAUDE.md
Named in .Rbuildignore: .claude, CLAUDE.md
Named in .gitignore: .claude

Shared conventions any agent may read, so they name no particular tool.

Seen in the repository: AGENTS.md

How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing mirai adds 1 package (1 with compiled code, 911 KB of source tarballs). Heaviest: nanonext 911 KB.

Depends (1)

R >= 3.6

Imports (1)

nanonext

LinkingTo (0)

none

Suggests (6)

cli litedown mori otel otelsdk secretbase

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

37direct

95indirect

Imports 37

Suggested by 49

Show the 48 most downloaded packagesHide the 48 most downloaded packages

Depends, Imports or LinkingTo, most downloaded first

Suggests, most downloaded first

purrr shiny promises DEoptimR logger brms tune mirt mlr3misc bbotk SimDesign

and 38 more packages that suggest it on CRAN ↗

How these are counted

Code & Tests

People & History

People (4)

Charlie Gao

Author, Maintainer since 0.1.0 (2022)

Joe Cheng

Contributor · added in 1.3.0

Hibiki AI Limited

Copyright holder · added in 0.5.0

Posit Software, PBC

Copyright holder, Funder · added in 2.0.0

Releases (51)

Pick two releases to compare their code metrics.

2.7.3Latest
record
2026-09-24 · current release · diff ↗
2.7.2
record
2026-07-20 · diff ↗
2.7.1
record
2026-06-01 · diff ↗
2.7.0
record
2026-05-08 · diff ↗ ·
removed 1 export
dispatcher

added 1 export
try_mirai
R
R 4.6.0 released · 2026-04-24
2.6.1
record
2026-03-02 · diff ↗
2.6.0
record
2026-02-13 · diff ↗ ·
added 1 export
http_config
2.5.3
record
2025-12-01 · diff ↗
2.5.2
record
2025-11-05 · diff ↗
2.5.1
record
2025-10-06 · diff ↗ ·
added 1 export
race_mirai
2.5.0
record
2025-09-04 · diff ↗ ·
added 3 exports
info, local_daemons, with_daemons
2.4.1
record
2025-07-15 · diff ↗
2.4.0
record
2025-06-25 · diff ↗ ·
removed 1 export
call_mirai_

added 2 exports
cluster_config, require_daemons
2.3.0
record
2025-05-23 · diff ↗ ·
added 3 exports
daemons_set, on_daemon, register_serial
R
R 4.5.0 released · 2025-04-11
2.2.0
record
2025-03-20 · diff ↗ ·
removed 1 export
register_cluster

Show 41 earlier eventsHide 41 earlier events

2.1.0
record
2025-02-07 · diff ↗ ·
removed 1 export
saisei
2.0.1
record
2025-01-16 · diff ↗ ·
removed 1 export
.progress_cli

added 1 export
nextcode
2.0.0
record
2025-01-08 · diff ↗
1.3.1
record
2024-11-15 · diff ↗ ·
removed 1 export
serialization
1.3.0
record
2024-10-09 · diff ↗ ·
removed 1 export
.daemon

added 1 export
.progress_cli
1.2.0
record
2024-08-18 · diff ↗ ·
added 3 exports
.flat, is_mirai_map, serial_config
1.1.1
record
2024-07-01 · diff ↗
1.1.0
record
2024-06-06 · diff ↗ ·
added 4 exports
.progress, .stop, collect_mirai, mirai_map
1.0.0
record
2024-05-03 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.13.2
record
2024-04-11 · diff ↗ ·
added 1 export
register_cluster
0.12.1
record
2024-02-02 · diff ↗
0.12.0
record
2024-01-12 · diff ↗ ·
added 1 export
local_url
0.11.3
record
2023-12-07 · diff ↗ ·
added 2 exports
call_mirai_, serialization
0.11.2
record
2023-11-15 · diff ↗
0.11.1
record
2023-11-04 · diff ↗ ·
removed 2 exports
%>>%, .

added 2 exports
everywhere, host_url
0.11.0
record
2023-10-06 · diff ↗ ·
removed 1 export
server

added 4 exports
make_cluster, remote_config, ssh_config, stop_cluster
0.10.0
record
2023-09-16 · diff ↗ ·
added 2 exports
nextget, nextstream
0.9.1
record
2023-07-19 · diff ↗ ·
removed 2 exports
.server, launch_server

added 5 exports
.daemon, daemon, launch_local, launch_remote, status
0.9.0
record
2023-06-24 · diff ↗
0.8.7
record
2023-05-11 · diff ↗
0.8.4
record
2023-05-09 · diff ↗ ·
added 1 export
.server
R
R 4.3.0 released · 2023-04-21
0.8.3
record
2023-04-17 · diff ↗ ·
removed 1 export
launch

added 2 exports
launch_server, saisei
0.8.2
record
2023-04-03 · diff ↗ ·
added 1 export
launch
0.8.1
record
2023-03-17 · diff ↗
0.8.0
record
2023-03-15 · diff ↗ ·
removed 1 export
eval_mirai

added 2 exports
., dispatcher
0.7.2
record
2023-01-17 · diff ↗
0.7.1
record
2022-11-15 · diff ↗ ·
added 1 export
is_mirai_interrupt
0.7.0
record
2022-10-20 · diff ↗ ·
added 1 export
server
0.6.0
record
2022-09-16 · diff ↗
0.5.3
record
2022-08-16 · diff ↗ ·
removed 1 export
is_nul_byte

added 2 exports
is_error_value, is_mirai_error
0.5.2
record
2022-07-21 · diff ↗
0.5.0
record
2022-06-21 · diff ↗ ·
added 1 export
%>>%
R
R 4.2.0 released · 2022-04-22
0.4.1
record
2022-04-21 · diff ↗
0.4.0
record
2022-04-14 · diff ↗ ·
removed 2 exports
., ..

added 1 export
is_mirai
0.2.0
record
2022-03-29 · diff ↗
0.1.1
record
2022-03-15 · diff ↗ ·
removed 1 export
exec

added 7 exports
., .., daemons, is_nul_byte, mirai, stop_mirai, unresolved
0.1.0
record
2022-02-16
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2022-02-16
Total releases: 51 / 4 yrs
License: MIT + file LICENSE OSI · relicensed from GPL (>= 3) in 2.3.0
Minimum R: ≥ 3.6
Download size: 207 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("mirai")

Format

Gao, C., Hibiki AI Limited, Posit Software, PBC, & Cheng, J. (2026). mirai: Minimalist Async Evaluation Framework for R (Version 2.7.3) [Computer software]. https://doi.org/10.32614/CRAN.package.mirai

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

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 mirai version 2.7.3 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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