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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: My new crunching BEAST: Intel Core I7 920 CPU 8 tasks simultaneously |
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Thread Status: Active Total posts in this thread: 23
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darth_vader
Veteran Cruncher A galaxy far, far away... Joined: Jul 13, 2005 Post Count: 514 Status: Offline Project Badges: 
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Increase the ram to reduce the PF's. The memory is very pricey. Just so someone doesn't go down the wrong path on this ... The page faults (PFs) seen when CEP runs are "soft faults" that do not cause physical paging. Adding more RAM will not help. The application needs to be changed to reduce the page faults, which will improve both application and system performance. I'm sure the techs and project scientists are working on this. As has been said elsewhere, it is best to avoid running too many CEP WUs concurrently. Windows system overhead increases dramatically when there are high PF rates on multiple processors. - D |
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Incorporat3d
Cruncher Joined: Jan 17, 2009 Post Count: 4 Status: Offline Project Badges:
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Far as i am aware, the new i7 is simply a 4 core processor, only difference is that it has HT support replicates 1 core as 2, just like the P4HT.
So replicating 4 cores will show as 8. But essentially halves the core process between these 2 virtual cores. What this means is that programs will operate quicker, but you essentially have the same processing power as a quad core. So BOINC, which requires processing power isnt going to process much faster (if any) than a quad core. Using Vista isn't going to help as it has severe bandwidth errors with both hdd's and networking. Windows 7 will overcome this, it seems to run really really smooth but with the features of vista, the sidebar is gone also, so you can put your gadgets wherever you want. I am currently running Windows XP64 which gives me the hardware support of Vista, without the problems. |
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Movieman
Veteran Cruncher Joined: Sep 9, 2006 Post Count: 1042 Status: Offline |
Far as i am aware, the new i7 is simply a 4 core processor, only difference is that it has HT support replicates 1 core as 2, just like the P4HT. So replicating 4 cores will show as 8. But essentially halves the core process between these 2 virtual cores. What this means is that programs will operate quicker, but you essentially have the same processing power as a quad core. So BOINC, which requires processing power isnt going to process much faster (if any) than a quad core. Using Vista isn't going to help as it has severe bandwidth errors with both hdd's and networking. Windows 7 will overcome this, it seems to run really really smooth but with the features of vista, the sidebar is gone also, so you can put your gadgets wherever you want. I am currently running Windows XP64 which gives me the hardware support of Vista, without the problems. Your almost right but the new HT works much more effectively than the old HT with the P4's.. Also remember that the I7's are 45nm cpu's like the yorkfields and very effective in the work they do. I also run XP 64 on this system as just like cockroaches I don't allow Vista into my house.  |
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