I run Rosetta WCG and Einstein. I run Rosetta twice as much as the other two, but I'm getting credit for Einstein faster and for WCG at the same rate as Rosetta. Does this mean that the others are more generous with credits or is Rosetta less efficient on my computers? I run one power PC mac and 2 Intel macs.

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Einstein and WGC award more credit that Rosetta. There's a cross-project comparison chart here. For example, on that chart Einstein gives ~30% more than Rosetta.

There may be some CPU differences as well though. Intel Core 2 CPUs seem to do slightly better at Rosetta than AMD CPUs.

I run Rosetta WCG and Einstein. I run Rosetta twice as much as the other two, but I'm getting credit for Einstein faster and for WCG at the same rate as Rosetta. Does this mean that the others are more generous with credits or is Rosetta less efficient on my computers? I run one power PC mac and 2 Intel macs.

I believe Einstein@home was aggressively optimized for the Power PC, as the Altivec instruction set lends itself well to the kind of signal processing Einstein@home does. On the other hand Rosetta is, or certainly used to be, very poorly optimized for the same processor, and given that Power PC-based Macs are obsolete it probably doesn't make much sense for Rosetta to spend much time and effort doing optimization for what is any case a minority platform.

This may account for some of what you're seeing: Intel-bases Macs are a different story.

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It would be more benefitial to drop Rosetta@Home on the Mac-PPC and increas that share on to your Core2's.

Run something that works well on the PPC architecture on it instead.

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Team mauisun.org

Intel Core 2 CPUs seem to do slightly better at Rosetta than AMD CPUs.

Is there actually any comparison by anyone for a Hz to Hz (or £€$) with granted credit. I suppose I could have a look is the big long list but if somebody has already done it, it's so much easier.



EDIT to add my 2 mins of checking

Taking near the 1000th RAC to remove all the Quad Cores
found

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=280878
Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz
~48 credits per task

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=439791
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ ( should be 2GHz)
~ 32 credit per task (34.5 adjusted to 2.13GHz)

Both using the same time length (~10,000 seconds)



Have to assume neither is overclocked beyond it's designated speed.
And this is a 2 minute look using the fist 2 nearest each other in RAC, lol.


So cost difference, ?

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Team mauisun.org

EDIT to add my 2 mins of checking

Taking near the 1000th RAC to remove all the Quad Cores
found

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=280878
Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz
~48 credits per task

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=439791
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ ( should be 2GHz)
~ 32 credit per task (34.5 adjusted to 2.13GHz)

Both using the same time length (~10,000 seconds)

Have to assume neither is overclocked beyond it's designated speed.
And this is a 2 minute look using the fist 2 nearest each other in RAC, lol.

So cost difference, ?

I haven't done a comparison myself, but Astro http://setiathome.berkeley.edu//show_user.php?userid=77265 on the SETI forums has done some statistics on performance of AMD chips.

I would do a performance test myself, but I don't have access to an Intel 2.2 GHz chip. Also, I want to compare chips on the same OS/platform to make it a valid test. It would not surprise me in the least to learn that Rosetta performs best on Intel chips in Windows 2K/XP. That's just the way the developers seem to code.

I would be curious, but unfortunately, since I don't own a decent Intel box, it does me no tangible good. It would only help raise an awareness to the Rosetta application developers (should they feel motivated to improve its performance).

Intel Core 2 CPUs seem to do slightly better at Rosetta than AMD CPUs.

Is there actually any comparison by anyone for a Hz to Hz (or £€$) with granted credit. I suppose I could have a look is the big long list but if somebody has already done it, it's so much easier.



EDIT to add my 2 mins of checking

Taking near the 1000th RAC to remove all the Quad Cores
found

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=280878
Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz
~48 credits per task

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=439791
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ ( should be 2GHz)
~ 32 credit per task (34.5 adjusted to 2.13GHz)

Both using the same time length (~10,000 seconds)



Have to assume neither is overclocked beyond it's designated speed.
And this is a 2 minute look using the fist 2 nearest each other in RAC, lol.


So cost difference, ?

AMD x2 3800+ goes for 59 €
Intel E6420 is @ 179 €

+ The extra you need to spend for Intel Mainboards compared to AMD
:)

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http://www.MIAteam.eu