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发表于 2007-5-7 20:43:20
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回复 #22 mooncocoon 的帖子
PCIE总线并不是没有直接访问内存的手段,所以并不需要经由CPU来进行调用.
至于BUFFER大小,FAH的CPU版本仅仅使用了10M左右的内存做BUFFER,就算GPU跑纯浮点性能性能卓越,但是并不意味着单包的东西会比CPU的FAH多很多,毕竟FAH采用的基础算法...................
GPU and OS support
Which cards are supported?
We now support serveral classes of GPU boards, including X1600, X1800, and X1900 class GPU's from ATI. At the launch, we supported X1900 cards only. X1800 cards do not provide the performance seen in X1900's and so we strongly recommend X1900 class cards (although we now officially support X1800). X1900 and X1800 cards are actually quite different -- they have different processors (R520, R530 vs. the R580 [in the X1900 series]). The R580 makes a huge difference in performance -- its 48 pixel shaders are key, as we use pixel shaders for our computations. Also note that the card should have more than 256MB (i.e. at least 512MB) of RAM, otherwise the GPU client will put a huge load on the client machine (although we do note that the 256MB X1950Pro using PCIe does work reasonably well).
关于256M显存得问题，官方目前已经说得很清楚了,256M算起来客户机负载会很高。估计负载很高肯定会影响计算速度，就是不知道是什么程度。
[ 本帖最后由 Leeo 于 2007-5-7 20:45 编辑 ] |
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