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...9;t require a cluster. Jay <<example code omitted>> Not only is the sequential foreach much slower than the simple for-loop (as least in this particular instance), but I am not quite sure how to make foreach run parallel. Where would I get this parallel backend? I looked at doMC and doRedis, but these do not run on Windows, as far as I understand. And doSNOW is something to use when you have a cluster, while I have a simple dual-core PC. It is not really clear for how to make parallel computing work. Please, help. Regards, Sergey -- John W. Emerson (Jay) Associate Professor of Sta...

...amework takes this separation of *what* to parallelize (which you decide as a developer) and *how* to parallel (which the end-user decides) further by so called foreach adaptors aka parallel backends. With foreach, users have plently of doNnn packages to pick from, doMC, doParallel, doMPI, doSnow, doRedis, and doFuture. Several of these parallel backends build on top of the core functions provided by the 'parallel' package. So, with foreach your users can use forked parallel processing if they want and, or something else (selected at the top of their script). (Disclaimer: I'm the auth...

Thanks Simon, I will take note of the sensible default for core usage. I?m trying to achieve small scale parallelism, where tasks take 1-5 seconds and make fuller use of consumer hardware. Its not a HPC-worthy computation but even laptops these days come with 4 cores and I don?t see a reason to not make use of it. The goal for the current piece of code I?m working on is to bootstrap many

...This package contains dictionaries for reading microdata from IBGE (Brazilian Institute of Geography and Statistics) surveys PNAD, PME and POF. * distory (1.4) John Chakerian http://crantastic.org/packages/distory Geodesic distance between phylogenetic trees and associated functions. * doRedis (1.0.0) B. W. Lewis http://crantastic.org/packages/doRedis A Redis parallel backend for the %dopar% function * dynaTree (1.0) Robert B. Gramacy http://crantastic.org/packages/dynaTree Inference by sequential Monte Carlo for dynamic tree regression and classification models by parti...