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Hi James,</div>
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Rows are printed to the display table at various points during the solving process. A line is typically printed after every pricing loop. Also, lines can be printed within the pricing loop. Within the pricing loop, a display line is printed after every 100
pricing rounds. This would be why you are seeing the 3x100 columns being added on some lines while on others only 3 columns are added.</div>
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Cheers,</div>
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Steve<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Scip <scip-bounces@zib.de> on behalf of James Cussens <james.cussens@york.ac.uk><br>
<b>Sent:</b> 30 July 2020 10:12<br>
<b>To:</b> scip@zib.de <scip@zib.de><br>
<b>Subject:</b> [SCIP] pricing question</font>
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<span style="color:#9C6500; font-weight:bold">CAUTION:</span> This email originated from outside of the organisation. Do not click links or open attachments unless you recognise the sender and know the content is safe.</div>
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<div dir="ltr">Dear SCIPers,
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<div>I have a branch-price-and-cut application, and am using SCIP 7.0.1. When I set </div>
<div>pricing/maxvarsroot = 3</div>
<div>I get the following behaviour:</div>
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<div> <font face="monospace">time | node | left |LP iter|mem/heur|depth|mdpt |cons |cols |rows |cuts | dualbound | primalbound <br>
p 3.1s| 1 | 0 | 3 | clique| 671 | 0 |2038 |1556 |2035 | 0 | -- |-1.672124e+03<br>
5.7s| 1 | 0 | 114 | 150M | 0 | 0 |2038 |1559 |2035 | 0 | -- |-1.672124e+03<br>
11.0s| 1 | 0 | 421 | 150M | 0 | 0 |2038 |1859 |2035 | 0 | -- |-1.672124e+03<br>
17.3s| 1 | 0 | 747 | 150M | 0 | 0 |2038 |2159 |2035 | 0 | -- |-1.672124e+03<br>
25.8s| 1 | 0 | 920 | 691M | 0 | 0 |2038 |2340 |2035 | 0 | -9.382209e+02 |-1.672124e+03<br>
50.5s| 1 | 0 | 1056 | 730M | 0 | 0 |2038 |2343 |2105 | 70 | -9.382209e+02 |-1.672124e+03<br>
52.1s| 1 | 0 | 1346 | 730M | 0 | 0 |2038 |2417 |2057 | 70 | -9.655814e+02 |-1.672124e+03</font></div>
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<div><font face="monospace">So at time 5.7s we have 3 new columns as expected. However for the next two lines we see that 3*100 new columns are introduced.</font></div>
<div><font face="monospace">I have had a look at what is going on in </font>SCIPpricestoreApplyVars and each time it is called we only get 3 new variables priced in. So where do the 100 iterations come from?</div>
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<div>James</div>
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<div>James<br>
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<div>James Cussens</div>
<div>Room CSE/239<br>
Dept of Computer Science<br>
University of York <br>
York YO10 5GE, UK</div>
<div>Tel +44 (0)1904 325371</div>
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