future.callr: A Future API for Parallel Processing using 'callr'

Implementation of the Future API <doi:10.32614/RJ-2021-048> on top of the 'callr' package. This allows you to process futures, as defined by the 'future' package, in parallel out of the box, on your local (Linux, macOS, Windows, ...) machine. Contrary to backends relying on the 'parallel' package (e.g. 'future::multisession') and socket connections, the 'callr' backend provided here can run more than 125 parallel R processes.

Version: 1.0.0
Depends: R (≥ 3.4.0), future (≥ 1.58.0)
Imports: parallelly, callr
Suggests: globals, future.apply, listenv, markdown, R.rsp
Published: 2026-06-22
DOI: 10.32614/CRAN.package.future.callr
Author: Henrik Bengtsson ORCID iD [aut, cre, cph]
Maintainer: Henrik Bengtsson <henrikb at braju.com>
BugReports: https://github.com/futureverse/future.callr/issues
License: Apache License (≥ 2)
URL: https://future.callr.futureverse.org, https://github.com/futureverse/future.callr
NeedsCompilation: no
Language: en-US
Citation: future.callr citation info
Materials: README, NEWS
In views: HighPerformanceComputing
CRAN checks: future.callr results

Documentation:

Reference manual: future.callr.html , future.callr.pdf
Vignettes: A Future for callr (source)

Downloads:

Package source: future.callr_1.0.0.tar.gz
Windows binaries: r-devel: future.callr_0.10.2.zip, r-release: future.callr_1.0.0.zip, r-oldrel: future.callr_0.10.2.zip
macOS binaries: r-release (arm64): future.callr_1.0.0.tgz, r-oldrel (arm64): future.callr_0.10.2.tgz, r-release (x86_64): future.callr_1.0.0.tgz, r-oldrel (x86_64): future.callr_1.0.0.tgz
Old sources: future.callr archive

Reverse dependencies:

Reverse imports: forestsearch
Reverse suggests: bsitar, dipsaus, futureverse, iml, incubate, mlr3, mlr3db, mlr3spatial, projpred, SpaDES.core, targets

Linking:

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