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future (version 1.30.0)

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

270,166

Version

1.30.0

License

LGPL (>= 2.1)

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Last Published

December 16th, 2022

Functions in future (1.30.0)

FutureCondition

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

Back trace the expressions evaluated when an error was caught
TransparentFuture

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

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

A future represents a value that will be available at some point in the future
ConstantFuture-class

A future with a constant value
MultiprocessFuture-class

A multiprocess future is a future whose value will be resolved asynchronously in a parallel process
MulticoreFuture-class

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

A representation of a set of globals used with futures
FutureResult

Results from resolving a future
cluster

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

Export globals to the sticky-globals environment of the cluster nodes
future.options

Options used for futures
futureOf

Get the future of a future variable
futureSessionInfo

Get future-specific session information and validate current backend
%plan%

Use a specific plan for a future assignment
%seed%

Set random seed for future assignment
futures

Get all futures in a container
find_references

Get the first or all references of an R object
future

Create a future
re-exports

Functions Moved to 'parallelly'
.length

Gets the length of an object without dispatching
mandelbrot

Mandelbrot convergence counts
multicore

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

Robustly Saves an Object to RDS File Atomically
%conditions%

Control whether standard output should be captured or not
getExpression

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

Temporarily tweaks the arguments of the current strategy
%stdout%

Control whether standard output should be captured or not
pid_exists

Check whether a process PID exists or not
getGlobalsAndPackages

Retrieves global variables of an expression and their associated packages
%globals%

Specify globals and packages for a future assignment
transparent

Create a remote future whose value will be resolved asynchronously in a remote process
plan

Plan how to resolve a future
%label%

Specify label for a future assignment
%lazy%

Control lazy / eager evaluation for a future assignment
readImmediateConditions

Read All 'immediateCondition' RDS Files
requestCore

Request a core for multicore processing
resetWorkers

Free up active background workers
resolve

Resolve one or more futures synchronously
sessionDetails

Outputs details on the current R session
signalConditions

Signals Captured Conditions
sticky_globals

Place a sticky-globals environment immediately after the global environment
tweak

Tweak a future function by adjusting its default arguments
nbrOfWorkers

Get the number of workers available
nullcon

Creates a connection to the system null device
resolved

Check whether a future is resolved or not
result.Future

Get the results of a resolved future
run.Future

Run a future
usedCores

Get number of cores currently used
value

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