[Rd] R thread safe

[Rune Schjellerup Philosof]

Simon Urbanek wrote:
> On Mar 18, 2009, at 8:59 , Rune Schjellerup Philosof wrote:
>> A simple example of use:
>>  data1 <- data2 <- matrix(0, r, c)
>>  dataFiller <- function(i) {
>>   tmp <- someCalculation(i)
>>   data1[, i] <<- tmp$result1
>>   data2[, i] <<- tmp$result2
>>  }
>>  runParallelInThreads(1:c, dataFiller)
>>
>> If this can be done almost as fast and simple with processes, for
>> instance using the multicore package, then I think it needs to be better
>> documented.
>
> Can you elaborate on the last sentence, please? Things cannot happen
> if you don't ask ...
>

What I meant with the sentence was:
- How would you do the example above using the multicore package?
- What is the magnitude of speed reduction comparing the multicore
solution with the hypothetical solution using threads?

-- 
Cheers
Rune Schjellerup Philosof