Hi!

I've bought a brand new AMD Athlon 64 3000+ Winchester cpu and replaced my old AMD Athlon XP 2000+. But I was verry surprised. The measured performance (whet & drystone) of the athlon 64 lies a lot under this of the old cpu. Also the time per timestep increased from about 3.4 to about 4.1.

I expected the athlon 64 cpu to be at least a little bit faster in processing the sh workunits. What is the problem of the new athlon 64 cpu?

Thx & Ciao, Tom

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The best source for asking problems with BOINC and the ClimatePrediction client

Sounds like there's something wrong with your setup. If I'm not mistaken, the 3000+ runs at 1800 MHz. My AMD64 3200+ (non-Winchester) runs at 2000 MHz. It gets about 2.20 sec/ts with RAM run at relatively slow timings. You should be getting no more than 2.6 sec/ts I would say, probably closer to 2.5. What RAM are you using, what memory speed?

My Winchester 3000+ running at 2061 MHz gets 2.13 sec/ts under linux.
Perhaps cool'n'quiet is enabled so that your cpu runs at 1000 MHz?

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Probably something is wrong on my setup. I use the recently released ASUS A8N SLI DELUXE mainboard with nVidia 4 chipset. The settings in the BIOS are all turned to auto. The automatic overclocking of the ASUS BIOS is activated but the corresponding management software is not able to install, it crashes on on installation. So my system is currently not overclockt. Wheter the AMD Cool'n'quiet feature is working I don't know exactly. I installed the cool'n'quiet driver but I can't install the corresponding cool'n'quiet management software and I can't find any sign of this feature in the system overview of win xp. Isn't Win XP announcing the current CPU speed on the common tab of the system overview? This tab points out, that the AMD CPU is running with 1.81 GHz.

I'm frustrated at the moment but thanks for your posts for the moment.

Thx, Tom

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The best source for asking problems with BOINC and the ClimatePrediction client

I forgot to say that Ive installed 2 x 512MB DDR400 CL 2.5 DIMMS. The vendor of this modules is of 3rd party but the memory chips are from infineon.

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The best source for asking problems with BOINC and the ClimatePrediction client

> My Winchester 3000+ running at 2061 MHz gets 2.13 sec/ts under linux.
> Perhaps cool'n'quiet is enabled so that your cpu runs at 1000 MHz?
>

Ok & Thanks... The advise with the cool'n'quiet technology was a good mind. I deinstaled the cool'n'quiet driver and searched in the bios and deactivated this option there. Now the time per timestep is decreasing fast. What the resulting needed time will be at the end, Ive no idea but now boinc reached the old time per ts of my athlon xp 2000+ and it keeps falling.

Now I'm happy and thanks @josti and @geophi for your answers and advises.

Thx & Ciao, Tom

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The best source for asking problems with BOINC and the ClimatePrediction client

> Now the time per timestep is decreasing fast.
> What the resulting needed time will be at the end, Ive no idea but now boinc
> reached the old time per ts of my athlon xp 2000+ and it keeps falling.
>
> Now I'm happy and thanks @josti and @geophi for your answers and advises.
>
> Thx & Ciao, Tom
>
You can get a sec/ts by going to the trickle page, subtracting the CPU Time (sec) of your 2nd to last trickle from the CPU Time (sec) of your last trickle, then dividing by 10802.

You can get an estimate of how long it will take to complete a model by taking the sec/ts, dividing it by 2, then multiply by 18.

2 sec/ts = 6 hrs/trickle = 18 days/model

running all the time of course.