Re: fecpp C++ forward error correction library

[Loic Dachary <loic@dachary.org>]

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On 04/29/2013 04:06 PM, Jimmy Tang wrote:
> 
> On 22 Apr 2013, at 14:19, Loic Dachary wrote:
> 
>> Hi Christopher,
>>
>> Jack Lloyd is the author of fecpp ( http://www.randombit.net/code/fecpp/ ) and he tells me someone sent him a new SIMD approach a few weeks ago. I'm not sure what SIMD means yet, but I'll figure it out ;-). I tend to favor fecpp because it is more self contained and may be easier to embed than https://pypi.python.org/pypi/zfec
>>
>> Cheers
>>
>> -- 
>> Loïc Dachary, Artisan Logiciel Libre
>>
> 
> 
> Having played with zfec (more the underlying fec.[c,h] file) it's well written and self-contained as I remember it; but you will need to write a bunch of wrapper functions to chunk up data and pad out blocks and of course turn it into a library before you can use the underlying zfec implementation for ceph. If my memory is right, zfec's c code requires a C90 or C99 compiler to build it, I'm not sure if you care about that.

Hi Jimmy,

fecpp and zfec compile and run using g++ 4.7 . The requirements for http://code.google.com/p/holostor/ may be different but I suspect it also works. 

Cheers

> 
> Regards,
> Jimmy Tang
> 
> --
> Senior Software Engineer, Digital Repository of Ireland (DRI)
> High Performance & Research Computing, IS Services
> Lloyd Building, Trinity College Dublin, Dublin 2, Ireland.
> http://www.tchpc.tcd.ie/ | jtang@tchpc.tcd.ie
> Tel: +353-1-896-3847
> 

-- 
Loïc Dachary, Artisan Logiciel Libre



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