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发表于 2008-6-26 17:29:41
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http://foldingforum.org/viewtopic.php?f=38&p=33286
Michael Houston 关于 F@H 在 RV770 性能低下的原因:
The code needs to be retuned to scale from the 320 SPs in the 38XX boards to the 800 SPs in the 4850. At the moment, at least on the smaller proteins FAH is currently running, the 4850 is a little faster clock for clock than a 38XX, but the clocks are lower so it's currently a small drop in performance. We are tuning away, but it's going to be a little while until things are tweaked to utilized the 2.5X increase in SPs in the 4850 over the 38XX boards. We went for stability first, and are now just a little way into a heaving tuning pass. 2XXX/3XXX will get faster as well, but the 4XXX has the most headroom.
其实是因为现在770按照320sp在跑,但是由于时钟频率低,所以性能比较低
大牛正在tunning,未来在2xxx/3xxx会有提升,4xxx空间更大,应该有2.5x以上,相对于38xxx
[ 本帖最后由 BiscuiT 于 2008-6-26 17:32 编辑 ] |
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