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<SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-ansi-language: EN-US" lang=EN-US>Dear All<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN><BR>
<SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-ansi-language: EN-US" lang=EN-US> <o:p></o:p></SPAN><BR>
<SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-ansi-language: EN-US" lang=EN-US>I am running IPOPT with this warmstart options:<o:p></o:p></SPAN><BR>
<SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-ansi-language: EN-US" lang=EN-US><o:p> </o:p></SPAN><BR>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>warm_start_init_point yes<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>warm_start_bound_push 1e-6 <o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>warm_start_mult_bound_push 1e-6<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US><o:p> </o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>I am trying to figure out why I cannot obtain better computational times after a third run.<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>For example, a problem of 42915 variables and 42615 constraints takes for:<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US><o:p> </o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>1<SUP>st</SUP> run -> time = 23.7 min<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>2<SUP>nd</SUP> run -> time= 4.61 min<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><B style="mso-bidi-font-weight: normal"><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>3<SUP>rd</SUP> run -> time= 4.6 min<o:p></o:p></SPAN></B></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US><o:p> </o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>If I am giving to IPOPT the optimal solution, why the following run takes the same time as the second?<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>Thanks<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; mso-ansi-language: EN-US" lang=EN-US>Juan<o:p></o:p></SPAN></P>
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