Thread Subject: two files use one processor only

Hi

    I am just curious about the cpu usage record.
My CPU is Intel Core2 Quad Q6600 2.4 GHz.
I open two matlab and run two M files.
These two files seem to use one processor only.
Why don't they use the other three processors?

Mike

Mike <SulfateIon@gmail.com> wrote in message <8b0aa4fa-7dac-40ae-ba0e-48a28568544e@z27g2000prd.googlegroups.com>...
> Hi
>
> I am just curious about the cpu usage record.
> My CPU is Intel Core2 Quad Q6600 2.4 GHz.
> I open two matlab and run two M files.
> These two files seem to use one processor only.
> Why don't they use the other three processors?
>
> Mike

I too have a Q6600 and opened up 2 instances of MATLAB. In each i ran the same M-file (a file based beamformer).

On starting the first instance running, CPU usage jumped to a consistent 25%. On starting the second instance running, CPU usage jumped to a consistent 50%.

I see no issues here. Windows XP (in my case) is definitely making use of the multiple cores.

It would unlikely be a MATLAB issue, more an OS issue.