I did notice some strange behaviour once, but things were working 
without a problem for a while now.
foreach loops and concepts are nice concepts, which I'd like to carry on 
using.
Maybe somebody from the foreach-dopar packages could explain why they 
have such issues?

Tim do you have concrete examples of the issues you talked with other 
developers?

Thank you.

Renaud

On 17/08/2011 12:45, Tim Triche, Jr. wrote:
> yes -- doMC (and doSMP) are kind of bogus and I just use 
> multicore::mclapply() to good effect these days.  I checked around 
> with other people doing similar things at the Bioconductor developer 
> day and pretty much everyone confirmed that doWHATEVER seems to have 
> issues, where as multicore itself... doesn't.
>
> Just my $0.02,
>
> --t
>
>
> On Wed, Aug 17, 2011 at 1:45 AM, Renaud Gaujoux 
> <renaud@mancala.cbio.uct.ac.za <mailto:renaud@mancala.cbio.uct.ac.za>> 
> wrote:
>
>     Hi,
>
>     in R 2.12.1, R CMD check hangs when building a vignette that uses
>     a foreach loop with the doMC parallel backend.
>     This does not happen in R 2.13.1, nor if I use doSEQ instead of doMC.
>     All versions of multicore, doMC and foreach are the same on both
>     my R installations.
>
>     Has anybody encountered a similar issue?
>
>     Thank you.
>     Renaud
>
>
>
>
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>
>         If people do not believe that mathematics is simple, it is
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>
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