future v1.10.0

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Unified Parallel and Distributed Processing in R for Everyone

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(multiprocess)`. 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.

Functions in future

Name Description
MulticoreFuture-class An multicore future is a future whose value will be resolved asynchronously in a parallel process
%globals% Specify globals and packages for a future assignment
getGlobalsAndPackages Retrieves global variables of an expression and their associated packages
UniprocessFuture-class An uniprocess future is a future whose value will be resolved synchronously in the current process
as.cluster Coerce an object to a cluster object
futureOf Get the future of a future variable
cluster Create a cluster future whose value will be resolved asynchronously in a parallel process
future_lapply [DEFUNCT] Apply a Function over a List or Vector via Futures
nbrOfWorkers Gets the number of workers available
nullcon Creates a connection to the system null device
%plan% Use a specific plan for a future assignment
%seed% Set random seed for future assignment
multiprocess Create a multiprocess future whose value will be resolved asynchronously using multicore or a multisession evaluation
find_references Get first or all references of an R object
ClusterFuture-class A cluster future is a future whose value will be resolved asynchronously in a parallel process
ConstantFuture-class A future with a constant value
multisession Create a multisession future whose value will be resolved asynchronously in a parallel R session
future Create a future
Future-class A future represents a value that will be available at some point in the future
sessionDetails Outputs details on the current R session
future.options Options used for futures
FutureCondition A condition (message, warning, or error) that occurred while orchestrating a future
requestCore Request a core for multicore processing
FutureGlobals A representation of a set of globals used with futures
availableWorkers Get set of available workers
backtrace Back trace the expression evaluated when a condition was caught
%label% Specify label for a future assignment
%lazy% Control lazy / eager evaluation for a future assignment
resolve Resolve one or more futures synchronously
multicore Create a multicore future whose value will be resolved asynchronously in a forked parallel process
mandelbrot Mandelbrot convergence counts
supportsMulticore Check whether multicore processing is supported or not
FutureResult Results from resolving a future
%stdout% Control whether standard output should be captured or not
autoStopCluster Automatically stop a cluster when garbage collected
tweak Tweaks a future function by adjusting its default arguments
availableCores Get number of available cores on current machine
%tweak% Temporarily tweaks the arguments of the current strategy
futures Gets all futures in an object
resolved Check whether a future is resolved or not
usedCores Get number of cores currently used
makeClusterMPI Create a Message Passing Interface (MPI) cluster of R workers for parallel processing
getExpression Inject code for the next type of future to use for nested futures
pid_exists Check whether a process PID exists or not
plan Plan how to resolve a future
result.Future Get the results of a resolved future
sequential Create a sequential future whose value will be in the current R session
run.Future Run a future
value.Future The value of a future
makeClusterPSOCK Create a PSOCK cluster of R workers for parallel processing
.length Gets the length of an object without dispatching
remote Create a remote future whose value will be resolved asynchronously in a remote process
values Gets all values in an object
MultiprocessFuture-class An multiprocess future is a future whose value will be resolved asynchronously in a parallel process
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Vignettes of future

Name
future-1-overview.md.rsp
future-2-output.md.rsp
future-3-topologies.md.rsp
future-4-issues.md.rsp
future-5-startup.md.rsp
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Details

VignetteBuilder R.rsp
License LGPL (>= 2.1)
LazyLoad TRUE
ByteCompile TRUE
URL https://github.com/HenrikBengtsson/future
BugReports https://github.com/HenrikBengtsson/future/issues
RoxygenNote 6.1.0
NeedsCompilation no
Packaged 2018-10-17 01:49:57 UTC; hb
Repository CRAN
Date/Publication 2018-10-17 08:20:02 UTC

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