<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV> I was trying to solve a problem with CLP, and I encountered a Primal Infeasibility with tolerance of 1.0e-6. After a cumbersome debugging procedure, I found that it is because of a Variable in Bound Section (that it shouldn't cause). So, I changed the place of the Upper Bound of the Variable from Bound Section to <SPAN class=yshortcuts id=lw_1242744826_0 style="BACKGROUND: none transparent scroll repeat 0% 0%; CURSOR: hand; BORDER-BOTTOM: #0066cc 1px dashed">Constraint</SPAN> Section, and then CLP was able to solve it to optimality. With same upper bound in Bounds Section, CLP complaint infeasibility, whereas it solved to optimality when it is in Constraint Section.<BR> It seems, Constraint Section and Bound Section has different rounding or treatment or may be it was
because of perturbation we are using. Can someone explain what is going on and what may be the cause?<BR> Thanks,<BR> Emrah<BR></DIV></div><br>
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