Feature Comparison 'parallelly' vs 'parallel' | Compatibility with the parallel package | availableCores() vs parallel::detectCores() | Backward compatibility with the future package | Roadmap
This package is hidden from search results because it is not hosted in the universe of the upstream owner
cran. To fix this you can add URL: https://cran.r-universe.dev/parallelly to the package DESCRIPTION file. See also theR-universe documentation.Package: parallelly 1.48.0
Henrik Bengtsson
parallelly: Enhancing the 'parallel' Package
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.
Authors:
parallelly_1.48.0.tar.gz
parallelly_1.48.0.tar.gz(r-4.7-arm64)parallelly_1.48.0.tar.gz(r-4.7-x86_64)parallelly_1.48.0.tar.gz(r-4.6-arm64)parallelly_1.48.0.tar.gz(r-4.6-x86_64)
parallelly_1.48.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
parallelly/json (API)
| # Install 'parallelly' in R: |
| install.packages('parallelly', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/futureverse/parallelly/issues
Pkgdown/docs site:https://parallelly.futureverse.org
Last updated from:414fc7b7c8. Checks:4 ERROR, 2 OK. Indexed: no.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel-arm64 | ERROR | 184 | ||
| linux-devel-x86_64 | ERROR | 154 | ||
| source / vignettes | OK | 139 | ||
| linux-release-arm64 | ERROR | 184 | ||
| linux-release-x86_64 | ERROR | 166 | ||
| wasm-release | OK | 92 |
Exports:as.clusterautoStopClusteravailableConnectionsavailableCoresavailableWorkerscloneNodeconnectionIdcpuLoadfreeConnectionsfreeCoresfreePortisConnectionValidisForkedChildisForkedNodeisLocalhostNodeisNodeAlivekillNodemakeClusterMPImakeClusterPSOCKmakeClusterSequentialmakeNodePSOCKRMPIRPSOCKSEQserializedSizesupportsMulticore
Dependencies:
An Introduction to 'parallelly'
Last update: 2026-06-29
Started: 2024-12-03
Parallel Workers Running MS Windows via Wine
Introduction | Install R for MS Windows 11 | Examples | Example: Parallel workers running MS Windows via Wine | Example: Installing packages in Wine | Appendix | Using a personal package library in Wine | Wine and R warnings | Windows-only CRAN packages
Last update: 2026-06-29
Started: 2024-12-03
Parallel Workers in the Cloud
Introduction | Examples | Example: Remote worker running on GCE | Example: Remote worker running on AWS
Last update: 2026-04-17
Started: 2024-12-03
Parallel Workers on High-Performance Compute Environments
Introduction | Examples | Example: Launch parallel workers via the Grid Engine job scheduler | Example: Launch parallel workers via the Fujitsu Technical Computing Suite job scheduler
Last update: 2026-04-17
Started: 2024-12-03
Parallel Workers on Other Machines
Introduction | SSH and R configuration (once) | Verifying SSH access | Configure password-less SSH access | Verifying R exists on the other machine | Final checks | Machine-specific SSH customization (recommended) | Examples | Example: Two parallel workers on a single remote machine | Example: Two parallel workers on two remote machines | Example: Three parallel workers on two remote machines | Example: A mix of local and remote workers | Example: Parallel workers on a remote machine accessed via dedicated login machine | Special needs and tweaks | Example: Remote workers ignoring any remote .Rprofile settings | Example: Use PuTTY on MS Windows to connect to remote worker | Example: Two remote workers running on MS Windows
Last update: 2026-04-17
Started: 2024-12-03
Parallel Workers on the Local Machine
Introduction | Examples | Example: Launching two parallel workers | Example: Launching as many parallel workers as allotted
Last update: 2026-04-17
Started: 2024-12-03
Parallel Workers Running in Linux Containers
Introduction | Examples | Example: Two parallel workers running in Docker | Example: Two parallel workers running in Apptainer | Example: Two parallel workers running in udocker
Last update: 2026-04-17
Started: 2024-12-03
Parallel Workers with CPU and Memory Limited
Introduction | Examples | Example: Linux parallel workers with a lower process priority ("nice") | Example: Linux parallel workers CPU and memory limited by CGroups | Example: MS Windows parallel workers with specific CPU affinities
Last update: 2026-04-17
Started: 2024-12-03
Parallel Workers Running in a Sandbox
Introduction | Examples | Example: Bubblewrap on Linux
Last update: 2026-01-08
Started: 2025-12-12
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Coerce an Object to a Cluster Object | as.cluster as.cluster.cluster as.cluster.list as.cluster.RichSOCKnode as.cluster.SOCK0node as.cluster.SOCKnode c.cluster |
| Automatically Stop a Cluster when Garbage Collected | autoStopCluster |
| Number of Available and Free Connections | availableConnections freeConnections |
| Get Number of Available Cores on The Current Machine | availableCores |
| Get Set of Available Workers | availableWorkers |
| Clone one or more nodes | cloneNode |
| Find a TCP port that can be opened | freePort |
| Checks if a Connection is Valid | connectionId isConnectionValid |
| Checks whether or not we are running in a forked child process | isForkedChild |
| Checks whether or not a Cluster Node Runs in a Forked Process | isForkedNode |
| Checks whether or not a Cluster Node Runs on Localhost | isLocalhostNode |
| Check whether or not the cluster nodes are alive | isNodeAlive |
| Terminate one or more cluster nodes using process signaling | killNode |
| Create a Rich Message Passing Interface (MPI) Cluster of R Workers for Parallel Processing | makeClusterMPI RMPI |
| Create a Rich PSOCK Cluster of R Workers for Parallel Processing | makeClusterPSOCK makeNodePSOCK RPSOCK |
| Create a "parallel" cluster running sequentially in the current session | makeClusterSequential SEQ |
| Calculate the size of an R object when it is serialized | serializedSize |
| Check If Forked Processing ("multicore") is Supported | supportsMulticore |
| Options Used by the 'parallelly' Package | future.availableCores.custom future.availableCores.fallback future.availableCores.methods future.availableCores.system future.availableWorkers.custom future.availableWorkers.methods future.fork.enable future.supportsMulticore.unstable parallelly.availableCores.custom parallelly.availableCores.fallback parallelly.availableCores.fraction parallelly.availableCores.logical parallelly.availableCores.max parallelly.availableCores.methods parallelly.availableCores.methods.excludes parallelly.availableCores.min parallelly.availableCores.omit parallelly.availableCores.system parallelly.availableWorkers.custom parallelly.availableWorkers.methods parallelly.availableWorkers.methods.excludes parallelly.debug parallelly.fork.enable parallelly.makeNodePSOCK.calls parallelly.makeNodePSOCK.connectTimeout parallelly.makeNodePSOCK.rscript_call parallelly.makeNodePSOCK.rshcmd parallelly.makeNodePSOCK.rshopts parallelly.makeNodePSOCK.setup_strategy parallelly.makeNodePSOCK.socketOptions parallelly.makeNodePSOCK.timeout parallelly.makeNodePSOCK.tries parallelly.makeNodePSOCK.tries.delay parallelly.makeNodePSOCK.useXDR parallelly.makeNodePSOCK.validate parallelly.maxWorkers.localhost parallelly.maxWorkers.localhost.ignore parallelly.options parallelly.supportsMulticore.disableOn parallelly.supportsMulticore.unstable R_FUTURE_AVAILABLECORES_FALLBACK R_FUTURE_AVAILABLECORES_SYSTEM R_FUTURE_FORK_ENABLE R_FUTURE_SUPPORTSMULTICORE_UNSTABLE R_PARALLELLY_AVAILABLECORES_FALLBACK R_PARALLELLY_AVAILABLECORES_FRACTION R_PARALLELLY_AVAILABLECORES_LOGICAL R_PARALLELLY_AVAILABLECORES_MAX R_PARALLELLY_AVAILABLECORES_METHODS R_PARALLELLY_AVAILABLECORES_METHODS_EXCLUDES R_PARALLELLY_AVAILABLECORES_MIN R_PARALLELLY_AVAILABLECORES_OMIT R_PARALLELLY_AVAILABLECORES_SYSTEM R_PARALLELLY_AVAILABLEWORKERS_METHODS R_PARALLELLY_AVAILABLEWORKERS_METHODS_EXCLUDES R_PARALLELLY_FORK_ENABLE R_PARALLELLY_MAKENODEPSOCK_CALLS R_PARALLELLY_MAKENODEPSOCK_CONNECTTIMEOUT R_PARALLELLY_MAKENODEPSOCK_RSCRIPT_CALL R_PARALLELLY_MAKENODEPSOCK_RSHCMD R_PARALLELLY_MAKENODEPSOCK_RSHOPTS R_PARALLELLY_MAKENODEPSOCK_SETUP_STRATEGY R_PARALLELLY_MAKENODEPSOCK_SOCKETOPTIONS R_PARALLELLY_MAKENODEPSOCK_TIMEOUT R_PARALLELLY_MAKENODEPSOCK_TRIES R_PARALLELLY_MAKENODEPSOCK_TRIES_DELAY R_PARALLELLY_MAKENODEPSOCK_USEXDR R_PARALLELLY_MAKENODEPSOCK_VALIDATE R_PARALLELLY_MAXWORKERS_LOCALHOST R_PARALLELLY_MAXWORKERS_LOCALHOST_IGNORE R_PARALLELLY_SUPPORTSMULTICORE_DISABLEON R_PARALLELLY_SUPPORTSMULTICORE_UNSTABLE zzz-parallelly.options |
