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Message-ID: <9F0721FDD4F12D4B95AD894274F388EC020C63F0FDFD@DJFEXMBX01.djf.agrsci.dk>
Date: 2011-10-16T12:21:10Z
From: Søren Højsgaard
Subject: multicore combn
In-Reply-To: <1318728353561-3908633.post@n4.nabble.com>

Just thought I'd let you know the following: In the gRbase package there is a function called combnPrim which does the same as combn but it is implemented in C - and is quite a bit faster than combn().

Regards
S?ren


________________________________________
Fra: r-help-bounces at r-project.org [r-help-bounces at r-project.org] P&#229; vegne af jebyrnes [byrnes at msi.ucsb.edu]
Sendt: 16. oktober 2011 03:25
Til: r-help at r-project.org
Emne: [R] multicore combn

This is a 'rather than re-invent the wheel' post.  Has anyone out there
re-written combn so that it can be parallelized - with multicore, snow, or
otherwise?  I have a job that requires large numbers of combinations, and
rather than get all of the index values, then crank it through mclapply, I
was wondering if there was a way to just do this natively within a function.

Just curious.  Thanks!

-Jarrett

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