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Thread Status: Active Total posts in this thread: 5
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Apache_Pilot
Cruncher Joined: Nov 22, 2005 Post Count: 12 Status: Offline Project Badges:
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I am wondering if the Fight Aids project benefits from a CPU with a larger L2 cache or is it processor speed that helps crunch it faster. Perhaps both help I'm not sure. Who can step up and educate me?
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tezahon
Cruncher Joined: Nov 26, 2005 Post Count: 3 Status: Offline |
With most raw number crunching tasks, processor speed matters a lot more.
The chip type also has an effect, with the higher speed Intel chips needing more L2 cache to reach their potential because the Netburst architecture (Pentium 4) is a bit of a sticking point (due to transport bandwidth) compared to the current AMD's. At least, that's what I understand. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
L2 would definitley help. If you are lucky, you are running a DEC Alpha 21164 with NT 4.0 and have 1 MB of L2 cache. THe P4 architecture is all rightm if you wanna be an artsie fartsie type, but than, you would not need a PC. THE AMD architecture, if I remember correctly,, has like, six math angines built into the core, and that really makes it fly for number cruching, like the grid :) Unlike Intel, which spent all their mony on mmx and dancing bunnies in a lab for commercials :) My AMD XP 2800 + is benchmarked to be 50% faster than a 3.5 Ghz P4. ANd I dont use alot of ram, I totally smoke the standard comparison of the grid computer. Its not always the size of the speed, but the architecture, and L2 is part of architecture in the fact that the faster a CPU gets, the faster it needs instructions, so get lots of L2 load it up before they are called, thats the theory and it seems to work for most except for intel.
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Apache_Pilot
Cruncher Joined: Nov 22, 2005 Post Count: 12 Status: Offline Project Badges:
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I wish to thank you both for sharing the info. I opted for a Barton core over a Thoroughbred here and installed an XP3000+. I had a sneaky feeling that the extra L2 was worth it.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello Niel12345
Can you tell me exactly how long each work unit for FAH takes on your machine? Thanks |
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