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<body>Thanks for the info, Andreas. I know that it has been a long time since the original posts, but I have been following it up with Yifan and Sivan.<BR>
&nbsp;<BR>
As yet, I do not have a version of TAUCS that works with IPOPT, but I will let you know when I have news.<BR>
&nbsp;<BR>
Graham<BR ><BR ><BR ><BR ><BR>

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&gt; Date: Wed, 14 Jun 2006 11:54:06 -0400<BR>&gt; From: andreasw@watson.ibm.com<BR>&gt; To: g_sparrow@hotmail.com<BR>&gt; CC: coin-ipopt@list.coin-or.org<BR>&gt; Subject: Re: [Coin-ipopt] IPOPT / TAUCS integration<BR>&gt; <BR>&gt; Hi&nbsp;Graham,<BR>&gt; <BR>&gt; As&nbsp;far&nbsp;as&nbsp;I&nbsp;know,&nbsp;there&nbsp;has&nbsp;been&nbsp;no&nbsp;new&nbsp;release&nbsp;of&nbsp;TAUCS&nbsp;with&nbsp;the&nbsp;<BR>&gt; indefinite&nbsp;symmetric&nbsp;solver.&nbsp;&nbsp;The&nbsp;Ipopt&nbsp;distribution&nbsp;includes&nbsp;some&nbsp;<BR>&gt; interface&nbsp;to&nbsp;TAUCS,&nbsp;contributed&nbsp;by&nbsp;Yifan&nbsp;Hu&nbsp;from&nbsp;Wolfram,&nbsp;but&nbsp;it&nbsp;used&nbsp;an&nbsp;<BR>&gt; inofficial&nbsp;release&nbsp;of&nbsp;TAUCS.&nbsp;&nbsp;For&nbsp;a&nbsp;while,&nbsp;I&nbsp;haven't&nbsp;heard&nbsp;any&nbsp;updates&nbsp;on&nbsp;<BR>&gt; this.<BR>&gt; <BR>&gt; If&nbsp;you&nbsp;want&nbsp;to&nbsp;see&nbsp;what&nbsp;the&nbsp;status&nbsp;is,&nbsp;you&nbsp;might&nbsp;want&nbsp;to&nbsp;contact&nbsp;the&nbsp;<BR>&gt; developers&nbsp;of&nbsp;TAUCS,&nbsp;see<BR>&gt; <BR>&gt; http://www.tau.ac.il/~stoledo/taucs/<BR>&gt; <BR>&gt; Cheers<BR>&gt; <BR>&gt; Andreas<BR>&gt; <BR>&gt; On&nbsp;Wed,&nbsp;14&nbsp;Jun&nbsp;2006,&nbsp;Graham&nbsp;Sparrow&nbsp;wrote:<BR>&gt; <BR>&gt; &gt;&nbsp;Just&nbsp;a&nbsp;quick&nbsp;request&nbsp;for&nbsp;information&nbsp;about&nbsp;the&nbsp;current&nbsp;status&nbsp;of&nbsp;IPOPT&nbsp;/&nbsp;<BR>&gt; &gt;&nbsp;TAUCS&nbsp;integration.&nbsp;I&nbsp;notice&nbsp;that&nbsp;the&nbsp;IPOPT&nbsp;prerequisites&nbsp;page&nbsp;says&nbsp;that&nbsp;<BR>&gt; &gt;&nbsp;it&nbsp;is&nbsp;being&nbsp;worked&nbsp;on&nbsp;and&nbsp;there&nbsp;is&nbsp;an&nbsp;interface&nbsp;file&nbsp;in&nbsp;the&nbsp;IPOPT&nbsp;C++&nbsp;<BR>&gt; &gt;&nbsp;distribution.&nbsp;Is&nbsp;this&nbsp;now&nbsp;functional?&nbsp;-&nbsp;it&nbsp;would&nbsp;be&nbsp;great&nbsp;to&nbsp;have&nbsp;this&nbsp;<BR>&gt; &gt;&nbsp;in.<BR>&gt; &gt;<BR>&gt; &gt;&nbsp;Thanks&nbsp;in&nbsp;advance,<BR>&gt; &gt;<BR>&gt; &gt;&nbsp;Graham<BR>&gt; &gt;&nbsp;_________________________________________________________________<BR>&gt; &gt;&nbsp;Express&nbsp;yourself&nbsp;instantly&nbsp;with&nbsp;MSN&nbsp;Messenger!&nbsp;Download&nbsp;today&nbsp;it's&nbsp;FREE!<BR>&gt; &gt;&nbsp;http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/<BR><BR><br /><hr />With MSN Spaces email straight to your blog. Upload jokes, photos and more. It's free! <a href='http://clk.atdmt.com/MSN/go/msnnksac0030000001msn/direct/01/?href=http://www.imagine-msn.com/spaces' target='_new'>It's free!</a></body>
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