Re: PETSc performance on Intel core 2 duo

["Aron Ahmadia" <aja2111@xxxxxxxxxxxx>]

Hi Ben,

These are some really difficult questions to answer quickly.  PETSc performance is dependent on a large variety of factors, from the architecture of your computer to the layout of your network to how much RAM you have, most importantly the problem you are trying to solve.

I have an Intel Core Duo laptop as well as a dual-processor Intel Core 2 Duo workstation here at Columbia, I'd be happy to benchmark some of your code for you if it will help you decide on the upgrade.

Thanks,
~Aron

On 1/23/07, Ben Tay <zonexo@xxxxxxxxx> wrote:

Hi,

 

Intel's new processor core 2 duo (c2d) have been getting pretty good reviews. How well is PETSc performance on the c2d?

 

I wonder how much speed improvement will I get if I upgrade from my current Athlon XP 2400+@2200mhz. Also the speed improvement over my school's xeon 3.06ghz server.

 

Is there any place where I can get or run some benchmark to get a rough comparison?

 

Btw, how important is L1/L2 cache impact on PETSc's performance? e.g. 2Mb vs 4 Mb L2 cache different.

 

Thank you.