I just got a brand new top of the line iMac with i7 and 16 gig ram. I sold my 6 year old model and replaced it with this new one. For some reason, the new machine seems to run Seti@home slower than my old iMac. My stats are down. I would have expected the new machine to be a lot faster with Seti. What am I doing wrong? What do you recommend?

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If you don't mind doing a little work, you could always download some optimized apps from Crunchers Anonymous. Should speed up the time to completion.

Mavericks seems to be slower

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Mike Bader
BOINC V7.16.5
http://setiathome.berkeley.edu/team_join_form.php?id=5 - Join Our International Team
[img]http://boinc.mundayweb.com/one/stats.php?

Mavericks seems to be slower

So far, the only device I've found to be slower in Mavericks is my AMD 7750. It seems to be about 5% slower than in Mountain Lion. So, I moved it to Windows 8 where it regained that 5%. My ATI 6850 & 6870 seem to be the same in Mavericks. The CPU APs appear to be about the same and even the CPU MB7s appear to be the same. You can see a few Mountain Lion CPU MB7s mixed in with the GPU MB7s here, SETI@home v7 tasks for computer 71141. The CPU tasks are the longer ones. The Mavericks CPU MB7 tasks are here, SETI@home v7 tasks for computer 63959. The latest 10 are using the Stock App whereas the others are using the new CPU App Optimized for the newer CPUs. It would be nice if someone with an AVX capable CPU tested the Newer App as it appears slower on my older Core2Quad. As you can see, the tasks run with the Stock CPU App appear to be the same in Mavericks and Mountain Lion. If you look at the GPU APs, you'll see those are about the same as well.

Mavericks seems to be slower

Are they implementing more aggressive power saving settings that may be causing things to run slower. As has been seen in some Linux builds?

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SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[

What times are you getting now?

On rare occasions I've had a new mac need an SMC reset, particularly if I restored it from a time machine backup of an older mac. Looking at the actual CPU speed, the CPU has been weirdly clocked a lot lower than it should be.

Another thing to keep in mind is that the newer i7's are hyper threaded, meaning you will be running with 8 virtual cores, and while this may produce 20-30% better overall results because you are running 8 wu's instead of 4 at time, the individual processing times will appear a bit longer than then you had a non-hyperthreaded CPU...

Anyway, its a harmless thing to try and might fix your problem.

Here's a link with instructions.

http://support.apple.com/kb/HT3964?viewlocale=en_US&locale=en_US

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Hmm...This gives me thoughts about building a Hackintosh, lol...Maybe after the next build.