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High performance FFT on GPUs

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发表于 2006-5-30 08:53:59 | 显示全部楼层 |阅读模式
http://hardware.slashdot.org/art ... 424213&from=rss

Posted by Hemos on Monday May 29, @12:30PM

from the testing-it-out dept.

  A reader writes: "The UNC GAMMA group has recently released a high performance FFT library which can handle large 1-D FFTs. According to their webpage, the FFT library is able to achieve 4x higher computational performance on a $500 NVIDIA 7900 GPU than optimized Intel Math Kernel FFT routines running on high-end Intel and AMD CPUs costing $1500-$2000. The library is supported for both Linux and Windows platforms and is tested to work on many programmable GPUs. There is also a link to download the library freely for non-commerical use."

http://gamma.cs.unc.edu/GPUFFTW
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发表于 2006-5-30 12:17:41 | 显示全部楼层
怎么用?
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 楼主| 发表于 2006-5-30 12:37:31 | 显示全部楼层
那个网站上有一些说明的
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发表于 2006-5-30 12:57:14 | 显示全部楼层
我以前在gpgpu看到过类似的程序
不过现在的GPU只能用32bit浮点,对于精度较高的计算还是无能为了
据说以后GPU会支持64bit的浮点数,再等一两年吧
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发表于 2006-5-30 13:07:48 | 显示全部楼层
... 开发用...  还以为有现成的可以利用GPU资源的东西... 囧rz
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