Short answer yes.
> On Mar 24, 2015, at 11:53 AM, Xuzhan Sun <[email protected]> wrote:
>
> Hello,
>
> I want to do some test on my single node cluster for Speed. I know it is easy
> to set up the Pseudo-Distributed Mode, and Hadoop will start one Java process
> for each single map/reduce.
>
> My question is: is it parallel enough on multi-core CPU? I mean if I have 4
> mappers at the same time while my CPU have 4 cores, will the 4 mappers be
> running on different cores at the same time?
>
> I know another way to simulate a Hadoop cluster with one machine is to use
> virtual machine software such as VMware to simulate multiple machines and set
> up a cluster upon these virtual machines. What's the difference between the
> two methods for SPEED and PARALLEL on multi-core structure?
>
> Thanks,
>
> Xuzhan
