<div dir="ltr">Without seeing the problem, I can't give any sort of complete answer to this question. <div> </div><div>One common issue is that SeDuMi has different requirements for feasibility than the other primal-dual interior point codes in that it will allow either the X or Z variable to have slightly negative eigenvalues, while CSDP, SDPT3, and SDPA all require that these variables have Cholesky factorizations. There are many badly posed problems that are right on the edge of feasibility with respect to this issue. </div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jul 20, 2015 at 2:26 PM, Dehghanpoor, Golnoosh <span dir="ltr"><<a href="mailto:g.dehghanpoor@wustl.edu" target="_blank">g.dehghanpoor@wustl.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hi,</p>
<p><br>
</p>
<p>I'm trying to solve a SDP problem with CSDP (from gloptipoly package) , which I've previously run with SeDumi and have gotten answer. But CSDP finds the same problem infeasible. Do you know what might be causing the problem? (I had to change [0 nsdpblocks+1
i i -c(i)] to full([0 nsdpblocks+1 i i -c(i)]) in fprintf in writedspa function to get the code working). Thanks for your time.</p>
<p><br>
</p>
<p>Regards,</p>
Golnoosh</div>
</div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Brian Borchers <a href="mailto:borchers@nmt.edu" target="_blank">borchers@nmt.edu</a><br>Department of Mathematics <a href="http://www.nmt.edu/~borchers/" target="_blank">http://www.nmt.edu/~borchers/</a><br>New Mexico Tech Phone: (575) 322-2592<br>Socorro, NM 87801 FAX: (575) 835-5366</div>
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