mirai: Minimalist Async Evaluation Framework for R

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, promises for reactive programming, 'OpenTelemetry' distributed tracing, and custom serialization for cross-language data types.

Version:	2.6.0
Depends:	R (≥ 3.6)
Imports:	nanonext (≥ 1.8.0)
Suggests:	cli, litedown, otel, otelsdk, secretbase
Enhances:	parallel, promises
Published:	2026-02-13
DOI:	10.32614/CRAN.package.mirai
Author:	Charlie Gao [aut, cre], Joe Cheng [ctb], Posit Software, PBC [cph, fnd], Hibiki AI Limited [cph]
Maintainer:	Charlie Gao <charlie.gao at posit.co>
BugReports:	https://github.com/r-lib/mirai/issues
License:	MIT + file LICENSE
URL:	https://mirai.r-lib.org, https://github.com/r-lib/mirai
NeedsCompilation:	no
Materials:	README, NEWS
In views:	HighPerformanceComputing
CRAN checks:	mirai results

Documentation:

Reference manual:	mirai.html , mirai.pdf
Vignettes:	mirai - Quick Reference (source) mirai - Reference Manual (source) mirai - Promises (Shiny and Plumber) (source) mirai - Serialization (Arrow, ADBC, polars, torch) (source) mirai - Communications Backend for R (source) mirai - OpenTelemetry (source) mirai - For Package Authors (source) mirai - Community FAQs (source)

Downloads:

Package source:	mirai_2.6.0.tar.gz
Windows binaries:	r-devel: mirai_2.6.0.zip, r-release: mirai_2.6.0.zip, r-oldrel: mirai_2.6.0.zip
macOS binaries:	r-release (arm64): mirai_2.6.0.tgz, r-oldrel (arm64): mirai_2.6.0.tgz, r-release (x86_64): mirai_2.6.0.tgz, r-oldrel (x86_64): mirai_2.6.0.tgz
Old sources:	mirai archive

Reverse dependencies:

Reverse imports:	bakerrr, bregr, CBTF, chopin, crew, dRiftDM, flownet, future.mirai, GeomArchetypal, gratia, invivoPKfit, kinesis, mlr3, pliman, ragnar, reqres, rush, slideimp, synthReturn, worldmet, xplainfi
Reverse suggests:	bbotk, brms, evsim, filibustr, important, kuzco, logger, mlr3fselect, mlr3hyperband, mlr3learners, mlr3mbo, mlr3misc, mlr3tuning, opusreader2, plumber2, promises, purrr, ravepipeline, routr, shiny, shinyOAuth, shinyscholar, teal, TrialSimulator, tune

Linking:

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