Doug Baskins <[email protected]>
----- Forwarded Message -----
>From: Doug Baskins <[email protected]>
>To: gwenael chailleu <[email protected]>
>Sent: Sunday, November 4, 2012 12:13 PM
>Subject: Rev 2 Judy status.
>
>
>Gwen:
>
>
>The new Judy (probably rev 2.0) is going very slowly. I am having problems
>debugging it quickly,
>while testing the effects of modifications on speed. So, I decided to use
>the 1.0.5 version of Judy
>to try some of the speed fixes. There is one "fix" to "JudyGet.c" that
>improves the speed about
>50%. Some of the others changes require many file changes. I will make
>that one "fix" and send
>you the source to try out, if you are interested. I will incorporate some of
>the other changes
>in rev 1.0.6 when I know how to use "popc" in Windows and Apple compilers.
>Perhaps, I
>will only use it in the 64bit versions (or until Core 2 duo becomes obsolete).
>
>
>
>I only use one SSE instruction in the new Judy so far -- popc (bit
>counting). I would be very interested
>to knowwhat other you use to get the %20 speed gain.
>
>
>Thanks for you interest,
>
>
>doug
>
>Doug Baskins <[email protected]>
>
>
>
>>________________________________
>> From: gwenael chailleu <[email protected]>
>>To: Doug Baskins <[email protected]>
>>Sent: Saturday, November 3, 2012 7:42 AM
>>Subject: Re: better thank twice than not at all !
>>
>>
>>Hello,
>>
>>We open-sourced our gnu m4 extension (using JudyBL built over JudyL) last
>>week and we were wondering how your JudyL recoding was going ?
>>On another matter, we have dowloaded openMalaria, an open source BOINC
>>project in order to optimize it.
>>We reached à 20 % speed gain only with a few SSE math functions.
>>Are you thinking of using SIMD instructions in your new version ?
>>
>>Best regards,
>>Gwen
>>
>>
>>
>
>
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