Hi,
milton ruser wrote:
In fact I have a quadcore. But how can I know if Linux are really using only one core, and how can I setup it to use the 4cores?
I don't know the answer in the context of R -- I didn't know that R can use multiple cores by default? But in general, I use "htop", whose man pages describes it as: "This program is a free (GPL) ncurses-based process viewer."
It is a colored version of "top", essentially. At the top of the screen, you will see your 4 cores represented as percentages. Under Setup, add "Processor" to the list of options and then "CPU" will appear as a column, which if you have 4 cores, the values will vary from 1 to 4.
If you want to check if R is running on more than one core, then obviously R should appear more than once and with two different values under CPU.
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