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future (version 1.31.0)

Unified Parallel and Distributed Processing in R for Everyone

Description

The purpose of this package is to provide a lightweight and unified Future API for sequential and parallel processing of R expression via futures. The simplest way to evaluate an expression in parallel is to use `x %<-% { expression }` with `plan(multisession)`. This package implements sequential, multicore, multisession, and cluster futures. With these, R expressions can be evaluated on the local machine, in parallel a set of local machines, or distributed on a mix of local and remote machines. Extensions to this package implement additional backends for processing futures via compute cluster schedulers, etc. Because of its unified API, there is no need to modify any code in order switch from sequential on the local machine to, say, distributed processing on a remote compute cluster. Another strength of this package is that global variables and functions are automatically identified and exported as needed, making it straightforward to tweak existing code to make use of futures.

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Install

install.packages('future')

Monthly Downloads

320,568

Version

1.31.0

License

LGPL (>= 2.1)

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Maintainer

Henrik Bengtsson

Last Published

February 1st, 2023

Functions in future (1.31.0)

futureSessionInfo

Get future-specific session information and validate current backend
getGlobalsAndPackages

Retrieves global variables of an expression and their associated packages
cluster

Create a cluster future whose value will be resolved asynchronously in a parallel process
futures

Get all futures in a container
future.options

Options used for futures
futureOf

Get the future of a future variable
find_references

Get the first or all references of an R object
clusterExportSticky

Export globals to the sticky-globals environment of the cluster nodes
getExpression

Inject code for the next type of future to use for nested futures
multicore

Create a multicore future whose value will be resolved asynchronously in a forked parallel process
%label%

Specify label for a future assignment
%tweak%

Temporarily tweaks the arguments of the current strategy
future

Create a future
%lazy%

Control lazy / eager evaluation for a future assignment
%stdout%

Control whether standard output should be captured or not
mandelbrot

Mandelbrot convergence counts
%globals%

Specify globals and packages for a future assignment
%conditions%

Control whether standard output should be captured or not
%plan%

Use a specific plan for a future assignment
.length

Gets the length of an object without dispatching
plan

Plan how to resolve a future
multisession

Create a multisession future whose value will be resolved asynchronously in a parallel R session
multiprocess

Create a multiprocess future whose value will be resolved asynchronously using multicore or a multisession evaluation
sequential

Create a sequential future whose value will be in the current R session
nbrOfWorkers

Get the number of workers available
signalConditions

Signals Captured Conditions
sessionDetails

Outputs details on the current R session
nullcon

Creates a connection to the system null device
save_rds

Robustly Saves an Object to RDS File Atomically
tweak

Tweak a future function by adjusting its default arguments
run.Future

Run a future
resetWorkers

Free up active background workers
requestCore

Request a core for multicore processing
sticky_globals

Place a sticky-globals environment immediately after the global environment
result.Future

Get the results of a resolved future
%seed%

Set random seed for future assignment
resolved

Check whether a future is resolved or not
readImmediateConditions

Writes and Reads 'immediateCondition' RDS Files
resolve

Resolve one or more futures synchronously
re-exports

Functions Moved to 'parallelly'
usedCores

Get number of cores currently used
value

The value of a future or the values of all elements in a container
Future-class

A future represents a value that will be available at some point in the future
backtrace

Back trace the expressions evaluated when an error was caught
MulticoreFuture-class

A multicore future is a future whose value will be resolved asynchronously in a parallel process
ConstantFuture-class

A future with a constant value
FutureGlobals

A representation of a set of globals used with futures
UniprocessFuture-class

An uniprocess future is a future whose value will be resolved synchronously in the current process
MultiprocessFuture-class

A multiprocess future is a future whose value will be resolved asynchronously in a parallel process
FutureCondition

A condition (message, warning, or error) that occurred while orchestrating a future
FutureResult

Results from resolving a future
ClusterFuture-class

A cluster future is a future whose value will be resolved asynchronously in a parallel process