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Re: [ft-devel] FT_MulDiv optimization


From: Behdad Esfahbod
Subject: Re: [ft-devel] FT_MulDiv optimization
Date: Fri, 04 Jul 2014 13:27:04 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 14-07-04 06:12 AM, Werner LEMBERG wrote:
>>> Well, at the same time it reduces the available range for `c' by
>>> more than 50%.
>>
>> I was greedy with the space for a and b. With a + b < 2*46340
>> instead, c can use the same old limit. We can expand c a lot further
>> by making a+b only a bit smaller.
> 
> OK.  Another reason for a statistical analysis :-)

Not worth it.  If Alexei keeps a + b < 2*46340 then this is a clear
improvement and needs no further analysis.

-- 
behdad
http://behdad.org/



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