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<font size="-1">Hi Brad,<br>
I have attached a zip file containing the ADOLC18 source files and
a CMake file. This zip builds a minimiser called "Betadiff" which
uses ADOLC for it's auto differentiation. Building an ADOLC
library by modifying the CMake file should be trivial.<br>
<br>
Regards,<br>
Scott<br>
<br>
<br>
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<div class="moz-cite-prefix">On 7/12/2014 3:30 a.m., Brad Bell
wrote:<br>
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<blockquote cite="mid:548312F8.6000203@seanet.com" type="cite">
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<div class="moz-cite-prefix">I would like to compare versions 1.8
and 2.5.2 of ADOLC on the speed tests that come with CppAD<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://www.coin-or.org/CppAD/Doc/speed_adolc.xml">http://www.coin-or.org/CppAD/Doc/speed_adolc.xml</a><br>
<br>
I do not see version 1.8 in the ADOLC download page<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://www.coin-or.org/download/source/ADOL-C/">http://www.coin-or.org/download/source/ADOL-C/</a><br>
nor do I see the corresponding releases below<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="https://projects.coin-or.org/ADOL-C/browser#releases">https://projects.coin-or.org/ADOL-C/browser#releases</a><br>
<br>
What is the normal procedure for obtaining old releases of ADOLC
?<br>
<br>
On 11/18/2014 2:26 PM, Scott Rasmussen @ Zaita wrote:<br>
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Hey guys,<br>
<br>
First thanks Christian for helping with my previous issue (I
never got email link to reply).<br>
<br>
I've been working on a new modeling system to replace CASAL
(produced by NIWA in New Zealand). CASAL was built using ADOLC
1.8 in a custom solver (FMM). I've re-implemented this same
solver with ADOLC 1.8 and 2.5 as different minimisers in my new
model but the speed differences between the two is HUGE.<br>
<br>
Minimisation with ADOLC 1.8 + FMM = 4 seconds<br>
with ADOLC 2.5 + FMM = 2.5 minutes<br>
with Numerical Diff (no autodiff) = 4 seconds<br>
<br>
This is a simple model but the differences in ADOLC speed is
amazing. My interface method with ADOLC is: <a
moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://pastebin.com/WGyZLRan">http://pastebin.com/WGyZLRan</a>
<br>
A single iteration with 2.5.2 takes 3-4 seconds. All binaries
minimise to the same result.<br>
<br>
Is there any reason why ADOLC 2.5 would be that much slower than
1.8? <br>
Is there any way I can increase the speed of ADOLC? <br>
I notice it writes to files A LOT and not a huge amount of data
(any flags to keep this in memory?)<br>
<br>
<br>
<br>
Thanks,<br>
Scott<br>
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