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 Post subject: LINUX F@H SMP vs. Windows F@H SMP
PostPosted: Thu Apr 19, 2007 1:14 pm 
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Joined: Tue Nov 16, 2004 11:44 am
Posts: 66
Location: Seattle, WA, USA
Hi

Here is the info on my experimentations with different OS for F@H:
The machine in question is:
Core2Duo 2.13 GHz
2 Gb DDR2800 RAM


Under Native WinXP:

Project : 2610
Credit : 1523
Avg. Time / Frame : 21mn 40s - 1012.16 ppd

Project : 2651
Credit : 1760
Avg. Time / Frame : 19mn 39s - 1289.77 ppd

Project : 2652
Credit : 1148
Avg. Time / Frame : 16mn 37s - 994.44 ppd



Under Ubuntu in a VMWare session on top of WinXP:

Project : 2604
Credit : 1760
Min. Time / Frame : 17mn 47s - 1425.15 ppd

Project : 2605
Credit : 1760
Min. Time / Frame : 17mn 30s - 1448.23 ppd

Project : 2609
Credit : 1523
Avg. Time / Frame : 21mn 01s - 1043.51 ppd

Project : 3037
Credit : 1440
Avg. Time / Frame : 18mn 37s - 1113.84 ppd

My conclusion is that the clients run more or less at the same speed (slight advantage to the LINUX SMP)
But what really tips the scale is the amount of high-ppd WU on LINUX. With the LINUX SMP client almost all my WU have been high-ppd. Under windows I got a lot of low-ppd units.
Since this is not a stable situation and it can change anytime, I cannot say that the LINUX SMP client is always a better choice, but currently it is.

Anyone else care to post their statistics?


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 Post subject:
PostPosted: Thu Apr 26, 2007 11:52 pm 
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Patron of SPCR

Joined: Wed Apr 18, 2007 12:55 pm
Posts: 47
Hi,

A sample of just one so far.

x2 3800 @ 2.15GHz @ 1.1v
dual boot WinXP and Ubuntu64 7.04

XP SMP client:
Project 2609
Credit 1523
Avg Time 37m39s - PPD 582.50

Ubuntu64 SMP client:
Project 2609
Credit 1523
Avg Time 33m34s - PPD 653.36

So for the exact same machine on the same project there is a ~10% speed boost by switching from XP to Ubuntu64.

But, using avi_dan's stats, changing from an X2 @ 2.15GHz to a C2Duo (@ ~ 2.15GHz) would result in a ~60% speed boost :(


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 Post subject:
PostPosted: Sat Apr 28, 2007 10:21 pm 
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Joined: Tue Mar 27, 2007 12:11 pm
Posts: 22
yea and if you ran the wu in your head 10,000 x speed boost


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