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<div class="moz-cite-prefix">Jonatan,<br>
<br>
It has found a solution of 4027.85. Use allowablegap or ratiogap
to stop when gap is small.<br>
<br>
John Forrest<br>
<br>
On 21/03/16 08:31, Jonatan Knud Lauritsen wrote:<br>
</div>
<blockquote
cite="mid:1095111328.3339359.1458549114003.JavaMail.yahoo@mail.yahoo.com"
type="cite">
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Lucida Grande, sans-serif;font-size:16px">
<div dir="ltr" id="yui_3_16_0_ym18_1_1458548704122_2182">I am
running my programming task with command "cbc model_cplex.lp
solve solu solution.txt" and now CBC is already working for
almost hour and giving messages like:</div>
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<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 75400 nodes, 16912 on tree, 4027.85 best solution, best
possible</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(874.05 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2491" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 75500 nodes, 16914 on tree, 4027.85 best solution, best
possible</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(876.98 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2492" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 75600 nodes, 16914 on tree, 4027.85 best solution, best
possible</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(880.22 seconds)</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 75700 nodes, 16913 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2493" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(882.89 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2494" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 75800 nodes, 16913 on tree, 4027.85 best solution, best
possible</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(885.77 seconds)</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 75900 nodes, 16913 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2559" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(888.34 seconds)</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 76000 nodes, 16913 on tree, 4027.85 best solution, best
possible</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(891.18 seconds)</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 76100 nodes, 16906 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2496" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(894.64 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2497" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 76200 nodes, 16894 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2499" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(897.10 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2500" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 76300 nodes, 16885 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2558" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(899.48 seconds)</div>
<div class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 76400 nodes, 16900 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2568" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(902.47 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2515" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Cbc0010I
After 76500 nodes, 16902 on tree, 4027.85 best solution, best
possible</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2514" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">4026.84
(904.88 seconds)</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2517" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal"><br>
</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2518" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">What
does this mean? As I understand, them my problem is feasible
but what CBC is trying to find so long? Is it trying to find
first feasible integer solution or CBC has already found some
solution but now is trying to find better solution. I would be
satisfied with suboptimal solution if it takes less time to
find. From smaller problems I know that first feasible
solution usually is quite good, the next best solutions
required lot of time to be found and the improvements are
small.</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2596" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal"><br>
</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2597" class="MsoNormal"
style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal">Jonatan<br>
</div>
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</div>
<div id="yui_3_16_0_ym18_1_1458548704122_2490" dir="ltr"> </div>
</div>
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<pre wrap="">_______________________________________________
Cbc mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Cbc@list.coin-or.org">Cbc@list.coin-or.org</a>
<a class="moz-txt-link-freetext" href="http://list.coin-or.org/mailman/listinfo/cbc">http://list.coin-or.org/mailman/listinfo/cbc</a>
</pre>
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