[R] parallel processing in r...

Christofer Bogaso bog@@o@chr|@to|er @end|ng |rom gm@||@com
Sun Jul 1 18:29:29 CEST 2018


On ' how to use "top" inside the R prompt? '
you can use system('top') command.


On Sun, Jul 1, 2018 at 9:53 PM Benoit Vaillant <benoit.vaillant using no-log.org>

> Hello,
> On Sun, Jul 01, 2018 at 11:31:29AM +0000, akshay kulkarni wrote:
> > I tried "top" at the bash prompt, but it provides a way to measure
> > CPU performance of the existing processes. I want to check the CPU
> > usage of the execution of an R function.
> Try to open two bash prompts, in one use R and in the other use top to
> monitor what is going on.
> > and at the R prompt I type the function to be executed. But if I
> > type "top" at the R prompt, it says object "top" not found.
> top is a shell command, no issue with R not knowing about this.
> > So, should I change to bash prompt after running the R function? If
> > yes, how do I do it? If not, how to use "top" inside the R prompt?
> Basically, you can't.
> > Again, I think this is an OS isuue....but I could'nt find any answer
> > in the Internet. I am an independent researcher and I don't have
> > personal access to experts.......this mail list is the only vent I
> > have.......
> ... (many more dots) Do you think we are experts on your system?
> Please do your home work and get back to us once it's done. ;-)
> Cheers,
> --
> Benoît
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