SSE Instructions not loaded???

[werty316]

Does anyone else have a problem with the SSE instrucitons not loading when an WU runs using core82?

I opened the console and wait until it fully loaded and resumed calculating the steps and then I closed and reopened it but the SSE instructions still don't load. Only solution is to start another WU http://www.mysmiley.net/imgs/smile/mad/mad0250.gif

I don't think the cause is an unstable CPU overclock as the other console running on the same machine loads the SSE instrucitons fine but then it is running core81.

[Sadasius]

Weird, must be that core as I cannot see an overclock having that reaction either.

[Kougar]

Not all Folding@home work units use the Gromacs core, you just happened to find a Amber core WU. ;) They don't use SSE instructions because it would only best case provide a 10% performance boost.

What about SSE/3D-Now/Altivec support?


Currently, SSE and SSE2 are not supported. AMBER is run in double precision so SSE would not help. SSE2 could help, but would not provide a significant speed increase. Our first goal was to get AMBER running stably and we will then try to further tweak optimizations with SSE2. However, we expect to gain only 10% speed increase.

[tyle6]

last couple WU ive gotten have been ambers, must be a batch of em going around!

[werty316]

Ah good to know thanks kougar :icon_tiphat:

[asterasy]

yea, I'm folding an amber right now aswell.

[Kougar]

About half of mine are now Amber core WU's too. Since they are all currently testing the same type of simulation, they are all going pretty fast at about 7 min per 1%. The 3906 and 3907 projects are worth 310 points or so.

The rest of the Amber core FAQ is here for those that are interested: http://www.stanford.edu/group/pandegroup/folding/AMBER.html

[werty316]

I never realized that the Amber cores go by pretty quick which is great http://www.mysmiley.net/imgs/smile/happy/happy0158.gif

[Sadasius]

I never realized that the Amber cores go by pretty quick which is great http://www.mysmiley.net/imgs/smile/happy/happy0158.gif

Not quick enough...hehe, just past you on the list! ;-)

[werty316]

We all don't have a PS3...