Fah Smp Afiinity Changer - It Works!

HighYield said:
What about the linux client on Ubuntu 7.10 running on the E6700@3.0GHz (2Gb ram)? It was only pulling about 1300-1400 ppd. I switched to WinXp pro with AC and now it is cranking 2000 ppd. I thought the the linux client was supposed to be more efficient. Is there anything special you are supposed to do on the linux client to get max ppd?


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That's a good question, I don't think there's anything special to do. I'm thinking you had other problems besides your operating system. I have folded on quite a few Linux boxen, both 32 bit single client and 64 bit SMP client, the Linux boxen always do better because I've heard the Linux 64 bit and 32 bit OS's have less overhead. Maybe when Stanford writes a 64 bit SMP client for VISTA 64 it'll even things up? :confused:

I was just going thru my drawer and the only other OS system I've folded under was WinXP /w SP2, but in Linux I have folded using Xubuntu 64 bit (v8.04, v7.10), Ubuntu 64 bit and Kubuntu 64 bit (v6.06 LTS, v7.04, v7.10), Ubuntu v6.06 LTS 32 bit, Simply Mephis 64bit (v7.0 ?), PCLinuxOS 2007 (32 bit), Mephis v6.06 (32 bit) Fedora i686, Fedora i386, Mandriva 2008 (32 bit) and some others I can't remember from back aways. I've used the SMPing clients since they were downloadable. I'm still partial to any Ubuntu flavor and apt-get, but I have DVD's for SUSE, Fedora Core 7 and CentOS v5.1 (I haven't given them a test run), plus I have CD's for BDS, Puppy Linux, DSL Linux, Ark, FreeSpire, Knoppix, Slackware and a few more, my typing finger is getting tired. The CD's are mostly 32 bit only, but they're fast on low memory and slower older machines :p

As far as folding, I don't think you can out do any Linux 64 bit boxen running the SMP client. I still have one of my 3x registered copies of WinXP /SP2 running, I think Linux still needs to catch up with winders for the all out desktop operating system. (especially from reading some of the current and unbiased reviews about VISTA Ultimate 64 bit) :D

The above is simply the opinion of the author, I've come to the conclusion: the more I know about something, the less I know about it :p.

 
I just installed it, I'll see if this raises me above my current 754PPD

(crosses fingers)

 
Ok...BillR, KillerMOB and I have spend days working on this and here is what we found;

Vista SP1 is a dog.
I got the accidental release of SP1 for Vista late on 02/21.

With the help of Killer and Bill we tested and discovered the answer.
The current release of Vista SP1 blows for dual SMP instances of folding on a q6600.

For one instance:

9:02 each step. Killer says this is a great time.

For two instances:

With SP1 and without affinity changer each step was 17:10 This sucks.
With SP1 and with affinity changer each step was 15:20 This also sucks.
Without SP1 and with affinity changer each step is 13:15 This is what it should be.


Don't install SP1 if you want to fold on a Q6600.
 
Thanks for sharing the infos, relic. This strengten the need to run under VMWare for those who use Vista like me.

As for the affinity changer, after a few days of running, 2 identical systems (Dell Optiplex 745 with E6300) running 2 WU within the same family always have between 50-150 ppd difference in favor of the one with AC.

 
Now if only VMware had Windows certified 64bit drivers, I could run it. Virtual PC won't run on more than one core, virtualbox won't run 64 bit client or virtual smp, only Vmware has 64 bit client support and virtual smp, but does not have certified drivers to install on a 64 bit Vista host. Maybe XP in a VM?

 
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