On Friday 23 January 2004 11:48 pm, Alexander Dalloz wrote: > Am Sa, den 24.01.2004 schrieb don um 08:14: > > fedora-tester said: > > > Does anyone know if it is possible to limit user's application > > > from running on a particular cpu on an smp system? > > > > If you can do that, it isn't SYMETRIC-multi-processing.... ;-) > > No, as far as I know the symmetric in SMP does not imply that an > application has to run on both (or all) CPUs the same time. > Symmetric just means the system's CPUs are sharing same RAM and > address lines and this way they can't be run absolutely independent > but have to inform each other about their actual state. > > Threaded tasks can be divided to run on all CPUs, so this is one > scenario from which an application on SMP gains it's boost. But > there are a lot of applications using just one CPU at time and you > will only gain improvement towards single CPU system if you run a > further application at the same time which uses the other CPU. > > I do not know an answer to the original question, but on > Windows[tm] NT based systems you can choose on which CPU an > application should run. > > Alexander See http://oss.sgi.com/projects They have some software called "cpumemsets" that claims to address this problem. I've never tried it, so I can't comment on whether it will work for you. Regards, John
