1) Message boards : Number crunching : sixtrack 4.67 (Message 13410)
Posted 19 Apr 2006 by stormdog
Post:

Out of curiosity, which cpu driver is in use?


I have AMD's driver, which comes with my motherboard, so it might be not the latest one.

Regards,
Andrew
2) Message boards : Number crunching : sixtrack 4.67 (Message 13397)
Posted 17 Apr 2006 by stormdog
Post:
This topic has been covered before. CnQ will idle the cpu when it isn't under USER initiated loads. When BOINC is installed and is allowed to run as a service, THAT is what makes the difference. So when the user is not producing a workload (i.e. the PC is idling) CnQ will reduce the CPU speed to the lowest speed to match user workload. BOINC will crunch, but at low speed - this is default behavior for all CnQ enabled systems. The only fixes are to either install BOINC to run only when a user is logged in, turn CnQ off in BIOS or easiest yet, change your power profile to "Always On" in Windows XP/2000.


This is not entirely true. My BOINC doesn't isntalled as a service. And the power profile of my box is "Always ON". CnQ is on leaded to greater cruch time anyway. It seems like achim.huber post is totally correct and CnQ just takes thread priority into account.
3) Message boards : Number crunching : sixtrack 4.67 (Message 13364)
Posted 14 Apr 2006 by stormdog
Post:

It is extremly slow. I have also a Athlon 64 X2 3800+ using BOINC 5.2.13 and WinXP SP2. A normal WU should take 3 hours on each core.


It tooks some time to check my guess. I turned off Cool'n'Quiet driver. Now it crunches two times faster(not only for LHC@Home). I guess Cool'n'Quiet doesn't really work as expected. According to my understanding a box shouldn't be slower if Cool'n'Quiet is on AND the box is fully busy.

Well, the cruel reality proves the theory is far from practice. :-) Now the temprature of the processor is around 60C (20C higher) and the cooler is rotating 2 times faster (a bit more 3Kcycles). So far I'm happy, but should wait till the warm comes.

The strange thing is Benchmarking shows the same results whenever Cool'n'Quiet is off or on. But still crunches two times faster...

Best Regards,
Andrew
4) Message boards : Number crunching : sixtrack 4.67 (Message 13346)
Posted 13 Apr 2006 by stormdog
Post:
I'm jumping in with the similar question. Recently I've upgraded to Athlon 64 3800+ Dual core. Normal WU now takes 5 hour 20 minutes to complete on each core. This looks extremely slow for me, especially comparing with my old Athlon 1300. Is it normal? I'm using BOINC 5.2.13 and Win2K SP4.

Best Regards,
Andrew



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