Message boards :
Number crunching :
v 0.26 and 0.03: Less than 20 Cr./hour on Nehalem!
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Author | Message |
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Send message Joined: 21 Nov 07 Posts: 52 Credit: 1,756,052 RAC: 0 |
Just finished the first WUs with 0.26 and 0.03 on Mac OS X and a 8-core 2.66 GHz Nehalem: less than 20 credits/hour! Not worth the electricity. |
Send message Joined: 21 Nov 07 Posts: 52 Credit: 1,756,052 RAC: 0 |
Even worse: Windows v0.19 takes only 2 hours and grants the same amount of credit on a much slower machine! |
Send message Joined: 24 Feb 09 Posts: 620 Credit: 100,587,625 RAC: 0 |
Its a known issue - 0.26 needs an update to the binaries to get it running the new V3 WU. Its just time and space getting round the different OS doing the needed update, we all seem to have 30 hrs hours work to fit in our 24hrs days these days, its usually even worse for developers :) It is on Travis's radar, so should not be long now 0.26 Binary Update Regards Zy |
Send message Joined: 18 Nov 07 Posts: 280 Credit: 2,442,757 RAC: 0 |
It's also been mentioned that they're working on a new type of search that might not be as GPU-friendly (though that remains to be seen). With GPUs working so well here at the moment it's probably best to focus your CPU on other projects until they get that search underway. I realize that's not technically what the topic is about, but ... |
Send message Joined: 12 Apr 08 Posts: 621 Credit: 161,934,067 RAC: 0 |
It's also been mentioned that they're working on a new type of search that might not be as GPU-friendly (though that remains to be seen). With GPUs working so well here at the moment it's probably best to focus your CPU on other projects until they get that search underway. I realize that's not technically what the topic is about, but ... Well, the version 3 tasks are still quite GPU friendly ... |
Send message Joined: 18 Nov 07 Posts: 280 Credit: 2,442,757 RAC: 0 |
Those use a different background model for the Milkyway, but not the new search method that was mentioned. The differences are important, of course, but they don't require a full rewrite. |
Send message Joined: 21 Nov 07 Posts: 52 Credit: 1,756,052 RAC: 0 |
Any news on this? The Win-CPU app is still 4 times faster than the Mac-CPU-app (on comparable machines). It's also been mentioned that they're working on a new type of search that might not be as GPU-friendly (though that remains to be seen). With GPUs working so well here at the moment it's probably best to focus your CPU on other projects until they get that search underway. I realize that's not technically what the topic is about, but ... |
Send message Joined: 27 Nov 09 Posts: 108 Credit: 430,760,953 RAC: 0 |
Even worse: Windows v0.19 takes only 2 hours and grants the same amount of credit on a much slower machine! I cannot recall the old stock CPU app running in anything much less than 9 hours on 2.5Ghz Nehalem XEON's under Windows 7 or Windows 2003. They are now taking 18-54 hours with the newest version :(. |
Send message Joined: 14 Feb 09 Posts: 999 Credit: 74,932,619 RAC: 0 |
Any news on this? The Win-CPU app is still 4 times faster than the Mac-CPU-app (on comparable machines). Actually with the app updates, the Win-CPU app is actually twice as slow as the Mac and Linux CPU apps. |
Send message Joined: 21 Nov 07 Posts: 52 Credit: 1,756,052 RAC: 0 |
?????? Milkyway 0.21 (WIN-CPU) takes appr. 8,000 seconds on a Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz [Family 6 Model 23 Stepping 10](4 processors) while Milkyway 0.31 (MAC-CPU) takes 30,000+ seconds on my Nehalem Intel(R) Xeon(R) CPU X5550 @ 2.67GHz [x86 Family 6 Model 26 Stepping 5](16 processors. BTW: Since a few days the Mac-version 0.31 hangs at 0% for hours. Any news on this? The Win-CPU app is still 4 times faster than the Mac-CPU-app (on comparable machines). |
Send message Joined: 27 Nov 09 Posts: 108 Credit: 430,760,953 RAC: 0 |
Milkyway 0.21 (WIN-CPU) takes appr. 8,000 seconds on a Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz That isn't a stock app. It's the opti SSE3 app. Much faster than stock 0.19 CPU app used to be. Latest stock CPU app identifies itself as either 0.40 or 0.04 depending on its mood. |
Send message Joined: 25 Aug 10 Posts: 4 Credit: 1,336,396 RAC: 0 |
Interesting comparing the points for the work done. I've got a Core i7 system and CUDA graphics card. The CUDA GPU v0.24 package does 24.2 CPU seconds and earns 213 points, the CPU v0.40 software does 63,500 CPU seconds and also earns 213 points. I'm seeing a larger number of CPU jobs taking 30 hours to complete and they are given the same points as jobs that take 8 hours. Is this really a reflection on the scientific value of the data processed? |
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