Re: fecpp C++ forward error correction library

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Supposedly, on 2013-Apr-29, at 07.23 PDT(-0700), someone claiming to be Loic Dachary scribed:

> 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.

Greetings - just looked at holostor - some concerns, it looks like it caps out (per the comments) at 17:21.  As I know of at least one case where I needed to do something like 10:18, that might already violate holostor (n-m > 4) or definitely push up to its m boundary.

	Christopher


>
> 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@xxxxxxxxxxxx
>> Tel: +353-1-896-3847
>>
>
> -- 
> Loïc Dachary, Artisan Logiciel Libre


--
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