On Saturday 02 July 2005 12:08, Greg Edwards wrote: > Hi, > I've just started my laptop factoring under Linux .. I chose factoring > because I'm only in Linux about 20% of the time and I would never finish a > L-L, not a large number anyway.
Well it would take 5x as long as it would take if it was running 24/7. But not forever. > It looks as though the Throttle parameter > doesn't apply to factoring, is that the case ? Yes. > However, I believe the > factoring doesn't hit the cpu as hard as the L-L. I'm keen not to wear out > the fan and all that. Oh, factoring hits the CPU just as hard - all available cycles - but it doesn't hit the same bits of the CPU. In particular the load on the floating point unit is much lower, the load on the SSE2 unit is zero and the working set is only a small fraction of the size of the L2 cache even if you have only a small one. This means that the CPU power draw running factoring will be much lower than if it was running LL tests so the fan shouldn't be worked as hard. Personally - especially with a laptop - I'd be much more concerned about noise from having the fan running than about the lifetime of the fan - cooling fan failures are remarkably rare these days, except for a few systems built to such a low standard that you probably wouldn't voluntarily choose to buy one. Regards Brian Beesley _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
