parallel

• CRAN: http://stat.ethz.ch/R-manual/R-devel/library/parallel/doc/parallel.pdf

> library(parallel)

バージョン: 3.2.2

---

.
children Low-level Functions for Management of Forked
Processes
clusterApply Apply Operations using Clusters
detectCores Detect the Number of CPU Cores
makeCluster Create a Parallel Socket Cluster
mcaffinity Get or Set CPU Affinity Mask of the Current
Process
mcfork Fork a Copy of the Current R Process
mclapply Parallel Versions of 'lapply' and 'mapply'
using Forking
mcparallel Evaluate an R Expression Asynchronously in a
Separate Process
nextRNGStream Implementation of Pierre L'Ecuyer's RngStreams
parallel-package Support for Parallel Computation
pvec Parallelize a Vector Map Function using Forking
splitIndices Divide Tasks for Distribution in a Cluster

関数名	概略
children	Low-level Functions for Management of Forked Processes
clusterApply	Apply Operations using Clusters
detectCores	Detect the Number of CPU Cores
makeCluster	Create a Parallel Socket Cluster
mcaffinity	Get or Set CPU Affinity Mask of the Current Process
mcfork	Fork a Copy of the Current R Process
mclapply	Parallel Versions of 'lapply' and 'mapply' using Forking
mcparallel	Evaluate an R Expression Asynchronously in a Separate Process
nextRNGStream	Implementation of Pierre L'Ecuyer's RngStreams
parallel-package	Support for Parallel Computation
pvec	Parallelize a Vector Map Function using Forking
splitIndices	Divide Tasks for Distribution in a Cluster

---

detectCores

CPIコア数の確認

> detectCores()

[1] 8