[分享] RcppParallel
[關鍵字]: Rcpp, parallel computing
[出處]: http://rcppcore.github.io/RcppParallel/#examples
[重點摘要]:
RcppParallel provides a complete toolkit for creating portable,
high-performance parallel algorithms without requiring direct manipulation of
operating system threads. RcppParallel includes:
Intel Thread Building Blocks (v4.3), a C++ library for task parallelism with
a wide variety of parallel algorithms and data structures (Windows, OS X,
Linux, and Solaris x86 only).
TinyThread, a C++ library for portable use of operating system threads.
RVector and RMatrix wrapper classes for safe and convenient access to R data
structures in a multi-threaded environment.
High level parallel functions (parallelFor and parallelReduce) that use Intel
TBB as a back-end on systems that support it and TinyThread on other
platforms.
我自己試做了用RcppArmadillo配上RcppParallel：
http://pastebin.com/KLwySJey
http://pastebin.com/PPhkVv6x (只有p小時會快，p變大會漸慢)
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推
08/07 12:31, , 1F
08/07 12:31, 1F
snow, foreach是以R的function做為基礎的平行設計
推
08/07 15:41, , 2F
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rth我記得是parallel some R functions...
有點久遠不復記憶了XDD
※ 編輯: celestialgod (1.163.8.105), 08/07/2015 16:41:00
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