On Tue, 25 Jan 2005 05:29:19 GMT, no one <noone@yahoo.com> wrote:

f/f george wrote:

On Tue, 25 Jan 2005 03:23:21 GMT, no one <noone@yahoo.com> wrote:

Has anyone tried to run two CLI's at the same time in a single P4 system
that has a Hyperthreaded CPU?  Do the two argue over resources?

It works fine, yes they do argue and that means that each workunit
takes a bit longer but since you are doing 2 at a time it more than
makes up for it.
Use something like SetiDriver to do it, it is easier.

In general, how much slower is WU results than when just one is run?

My son has HT and he slowed about 25% from the single unit speed.
He went from 2 hours for one unit at a time to 2 1/2 hours per unit
while doing 2 at a time.