[R-sig-hpc] papply help

[Nathan S. Watson-Haigh]

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I have some code that simply takes a matrix and raises all the values to a given
power:

<code>
m <- matrix(0.8, 10, 10)
beta <- 6
m <- m^beta
</code>

I'd like to parallelise this so that each slave executes the calculation on each
of the rows from the matrix. Would this yield any speedup given than my matrix
could be a 10,000 - 15,000 square?

The papply library/function seems like just the trick, but I can't seem to get
it to work....maybe the docs are confusing me as I'm not sure what the different
arguments are actually doing!

Any pointers welcomed :o)
Nathan

- --
- --------------------------------------------------------
Dr. Nathan S. Watson-Haigh
OCE Post Doctoral Fellow
CSIRO Livestock Industries
Queensland Bioscience Precinct
St Lucia, QLD 4067
Australia

Tel: +61 (0)7 3214 2922
Fax: +61 (0)7 3214 2900
Web: http://www.csiro.au/people/Nathan.Watson-Haigh.html
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