[R] help with parallel processing code

[Max Kuhn]

I have had issues with some parallel backends not finding functions
within a namespace for packages listed in the ".packages" argument or
explicitly loaded in the body of the foreach loop. This has occurred
with MPI but not with multicore. I can get around this to some extent
by calling the functions using the namespace (eg foo:::bar) but this
is pretty kludgy.

> sessionInfo()
R version 2.13.2 (2011-09-30)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] doMPI_0.1-5     Rmpi_0.5-9      doMC_1.2.3      multicore_0.1-7
foreach_1.3.2   codetools_0.2-8 iterators_1.0.5

Max

On Thu, Oct 27, 2011 at 4:30 PM, 1Rnwb <sbpurohit at gmail.com> wrote:
> If i understand correctly you mean to write the line as below:
>
> foreach(icount(itr),.combine=combine,.options.smp=smpopts,.packages='MASS')%dopar%
>
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-- 

Max