[R] Parallel R

[Juan Pablo Romero Méndez]

Just out of curiosity, what system do you have?

These are the results in my machine:

> system.time(exp(m), gcFirst=TRUE)
   user  system elapsed
   0.52    0.04    0.56
> library(pnmath)
> system.time(exp(m), gcFirst=TRUE)
   user  system elapsed
  0.660   0.016   0.175


  Juan Pablo


>
>> system.time(exp(m), gcFirst=TRUE)
>   user  system elapsed
>  0.108   0.000   0.106
>> library(pnmath)
>> system.time(exp(m), gcFirst=TRUE)
>   user  system elapsed
>  0.096   0.004   0.052
>
> (elapsed time about 2x faster). Both BLAS and pnmath make much better
> use of resources, since they do not require multiple R instances.
>