<div dir="ltr">Dear Gerald,<div><br></div><div>Aha, yes my mistake - after setting verbosity to maximum I see everything (show below). Thanks for your help!</div><div><br></div><div>James</div><div><font face="monospace, monospace"><br></font></div><div><div><font face="monospace, monospace">  1 constraints of type <dagcluster></font></div><div><font face="monospace, monospace">Presolving Time: 6.01</font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace"> time | node  | left  |LP iter| mem |depth|mdpt |frac |cons |cols |rows |cuts |pool |confs|strbr|  dualbound  | primalbound  |  gap   </font></div><div><font face="monospace, monospace"> 6.5s|   1 |   0 |   0 | 235M|  0 |  0 |  0 |1275 |  0 |  0 |  0 |  0 |  0 |  0 | 0.000000e+00 |    --    |   Inf </font></div><div><font face="monospace, monospace">k 6.5s|   1 |   0 |   0 | 236M|  0 |  0 |  0 |1275 |  0 |  0 |  0 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 6.9s|   1 |   0 |   0 | 278M|  0 |  0 |  - |1275 |2000 | 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 6.9s|   1 |   0 |   1 | 278M|  0 |  0 |  - |1275 |4000 | 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 6.9s|   1 |   0 |   1 | 278M|  0 |  0 |  - |1275 |6000 | 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 6.9s|   1 |   0 |   3 | 278M|  0 |  0 |  - |1275 |8000 | 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   3 | 278M|  0 |  0 |  - |1275 |  10k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   3 | 278M|  0 |  0 |  - |1275 |  12k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   3 | 278M|  0 |  0 |  - |1275 |  14k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   3 | 278M|  0 |  0 |  - |1275 |  16k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   3 | 278M|  0 |  0 |  - |1275 |  18k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   6 | 278M|  0 |  0 |  - |1275 |  20k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   9 | 278M|  0 |  0 |  - |1275 |  22k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   9 | 278M|  0 |  0 |  - |1275 |  24k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   11 | 278M|  0 |  0 |  - |1275 |  26k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> time | node  | left  |LP iter| mem |depth|mdpt |frac |cons |cols |rows |cuts |pool |confs|strbr|  dualbound  | primalbound  |  gap   </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |   37 | 278M|  0 |  0 |  - |1275 |  28k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.0s|   1 |   0 |  271 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.1s|   1 |   0 |  512 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.1s|   1 |   0 |  556 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.1s|   1 |   0 |  559 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.2s|   1 |   0 |  560 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.2s|   1 |   0 |  562 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 | 0.000000e+00 |-8.017084e+04 |   Inf </font></div><div><font face="monospace, monospace"> 7.2s|   1 |   0 |  562 | 278M|  0 |  0 |  7 |1275 |  30k| 300 | 300 |  0 |  0 |  0 |-4.304651e+04 |-8.017084e+04 |  86.24%</font></div><div><font face="monospace, monospace"> 7.6s|   1 |   0 |  682 | 283M|  0 |  0 |  0 |1275 |  30k| 412 | 412 |  1 |  0 |  0 |-4.304651e+04 |-8.017084e+04 |  86.24%</font></div><div><font face="monospace, monospace"> 7.6s|   1 |   0 |  684 | 283M|  0 |  0 |  0 |1275 |  30k| 412 | 412 |  1 |  0 |  0 |-4.304651e+04 |-8.017084e+04 |  86.24%</font></div><div><font face="monospace, monospace"> 7.7s|   1 |   0 |  684 | 283M|  0 |  0 |  0 |1275 |  30k| 412 | 412 |  1 |  0 |  0 |-6.320584e+04 |-8.017084e+04 |  26.84%</font></div><div><font face="monospace, monospace"> 7.7s|   1 |   0 |  716 | 284M|  0 |  0 |  0 |1275 |  30k| 422 | 422 |  1 |  0 |  0 |-6.320584e+04 |-8.017084e+04 |  26.84%</font></div><div><font face="monospace, monospace"> 7.8s|   1 |   0 |  716 | 284M|  0 |  0 |  0 |1275 |  30k| 422 | 422 |  1 |  0 |  0 |-6.326572e+04 |-8.017084e+04 |  26.72%</font></div><div><font face="monospace, monospace">k 7.8s|   1 |   0 |  716 | 284M|  0 |  0 |  0 |1275 |  30k| 422 | 422 |  1 |  0 |  0 |-6.326572e+04 |-7.975713e+04 |  26.07%</font></div><div><font face="monospace, monospace"> 8.1s|   1 |   0 |  784 | 303M|  0 |  0 |  0 |1275 | 508 | 522 | 522 |  4 |  0 |  0 |-6.326572e+04 |-7.975713e+04 |  26.07%</font></div></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 17 May 2017 at 07:46, Gerald Gamrath <span dir="ltr"><<a href="mailto:gamrath@zib.de" target="_blank">gamrath@zib.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hi James,<br>
<br>
just a short addition: did you leave the verbosity level at default
(high)? Then you could change it to full and see a display line
after each pricing round. If you already set it to full before, we
will need to investigate further to find the reason for the behavior
you are experiencing.<br>
<br>
Best,<br>
Gerald<br>
<br>
<div class="m_-5574414360109757784moz-cite-prefix">Am 16.05.2017 um 21:05 schrieb Gerald
Gamrath:<br>
</div>
<blockquote type="cite">
Hi James,<br>
<br>
sorry for the late reply. Your explanation with the cuts sounds
reasonable and could well cause this behavior, but is not the
reason here, since the cuts are only added a bit later.<br>
I also needed to have a look in the code to find the cause, but in
the end, it's quite simple: SCIP does not print a display line
after each pricing round, but only if nrounds % 100 == 1 (and
after the pricing round is finished, after cutting, etc.). So, the
second line you see is after a few more pricing rounds and you end
up at 30.000 variables at that point even if only 2000 are added
each round.<br>
<br>
Best,<br>
Gerald<br>
<br>
<div class="m_-5574414360109757784moz-cite-prefix">Am 15.05.2017 um 11:55 schrieb James
Cussens:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi folks,</div>
<div><br>
</div>
<div>Regarding my question below. I suspect now that the
reason I end up with so many new columns is that the
relevant variables are in the cuts I am adding. Does that
make sense?</div>
<div><br>
</div>
<div>James</div>
<div><br>
</div>
<br>
<div class="gmail_quote">---------- Forwarded message
----------<br>
From: <b class="gmail_sendername">James Cussens</b> <span dir="ltr"><<a href="mailto:james.cussens@york.ac.uk" target="_blank">james.cussens@york.ac.uk</a>></span><br>
Date: 12 May 2017 at 15:13<br>
Subject: pricing in problem variables<br>
To: <a href="mailto:scip@zib.de" target="_blank">scip@zib.de</a><br>
<br>
<br>
<div dir="ltr">
<div>I am experimenting with setting my problem variables
to be non-initial and having them 'priced-in'. See
 below for an example of what is going on.</div>
<div><br>
</div>
<div>The line where we get 2000 cols makes sense, since
this is the (default) value of pricing/maxvarsroot =
2000. However on the next iteration we end up with ~30k
columns.</div>
<div>I don't see why we don't just end up with 4000. Can
anyone illuminate me?</div>
<div><br>
</div>
<div>Note that since I have also marked my variables as
'removable' most of them get (perhaps temporarily)
removed a little later on.</div>
<div><br>
</div>
<div>James</div>
<div>Â Â <font face="monospace, monospace">Â </font></div>
<div><font face="monospace, monospace"><br>
</font></div>
<div><font face="monospace, monospace">.....</font></div>
<div><font face="monospace, monospace">1 constraints of
type <dagcluster></font></div>
<div><font face="monospace, monospace">Presolving Time:
14.87</font></div>
<div><font face="monospace, monospace"><br>
</font></div>
<div><font face="monospace, monospace"> time | node  |
left  |LP iter| mem |depth|mdpt |frac |cons |cols
|rows |cuts |pool |confs|strbr|  dualbound  |
primalbound  |  gap   </font></div>
<div><font face="monospace, monospace">Â 16.6s| Â Â 1 | Â Â
0 | Â Â 2 | 249M| Â 0 | Â 0 | Â - |1275 |2000 | Â 23 |
 0 |  0 |  0 |  0 | 0.000000e+00 |    --    |
  Inf </font></div>
<div><font face="monospace, monospace">Â 16.7s| Â Â 1 | Â Â
0 | Â Â 23 | 250M| Â 0 | Â 0 | Â 0 |1275 | Â 30k| Â 23 |
 0 |  0 |  0 |  0 |-6.120109e+04 |    --    |
  Inf </font></div>
<div><font face="monospace, monospace">k16.8s| Â Â 1 | Â Â
0 | Â Â 23 | 250M| Â 0 | Â 0 | Â 0 |1275 | Â 30k| Â 23 |
 0 |  0 |  0 |  0 |-6.120109e+04 |-8.017084e+04 |
 31.00%</font></div>
<div><font face="monospace, monospace">Â 17.1s| Â Â 1 | Â Â
0 | Â 210 | 261M| Â 0 | Â 0 | Â 0 |1275 | Â 30k| 149 |
126 | Â 8 | Â 0 | Â 0 |-6.120109e+04 |-8.017084e+04 |
 31.00%</font></div>
<div><font face="monospace, monospace">Â 17.2s| Â Â 1 | Â Â
0 | Â 210 | 261M| Â 0 | Â 0 | Â 0 |1275 | Â 30k| 149 |
126 | Â 8 | Â 0 | Â 0 |-6.396899e+04 |-8.017084e+04 |
 25.33%</font></div>
<div><font face="monospace, monospace">Â 18.1s| Â Â 1 | Â Â
0 | Â 444 | 288M| Â 0 | Â 0 | Â 58 |1275 | Â 30k| 288 |
265 | Â 9 | Â 0 | Â 0 |-6.396899e+04 |-8.017084e+04 |
 25.33%</font></div>
<div><font face="monospace, monospace">Â 18.3s| Â Â 1 | Â Â
0 | Â 463 | 288M| Â 0 | Â 0 | Â 55 |1275 | Â 30k| 288 |
265 | Â 9 | Â 0 | Â 0 |-6.566947e+04 |-8.017084e+04 |
 22.08%</font></div>
<div><font face="monospace, monospace">k18.4s| Â Â 1 | Â Â
0 | Â 463 | 288M| Â 0 | Â 0 | Â 55 |1275 | Â 30k| 288 |
265 | Â 9 | Â 0 | Â 0 |-6.566947e+04 |-7.959231e+04 |
 21.20%</font></div>
<div><font face="monospace, monospace">Â 19.9s| Â Â 1 | Â Â
0 | Â 1144 | 299M| Â 0 | Â 0 | 136 |1275 | Â 30k| 366 |
343 | Â 10 | Â 0 | Â 0 |-6.566947e+04 |-7.959231e+04 |
 21.20%</font></div>
<div><font face="monospace, monospace">Â 20.4s| Â Â 1 | Â Â
0 | Â 1211 | 299M| Â 0 | Â 0 | 152 |1275 | Â 30k| 366 |
343 | Â 10 | Â 0 | Â 0 |-6.640382e+04 |-7.959231e+04 |
 19.86%</font></div>
<div><font face="monospace, monospace">Â 22.1s| Â Â 1 | Â Â
0 | Â 1782 | 301M| Â 0 | Â 0 | 207 |1275 | Â 30k| 442 |
419 | Â 11 | Â 0 | Â 0 |-6.640382e+04 |-7.959231e+04 |
 19.86%</font></div>
<div><font face="monospace, monospace">Â 22.7s| Â Â 1 | Â Â
0 | Â 1851 | 301M| Â 0 | Â 0 | 221 |1275 | Â 30k| 442 |
419 | Â 11 | Â 0 | Â 0 |-6.643694e+04 |-7.959231e+04 |
 19.80%</font></div>
<div><font face="monospace, monospace">k22.8s| Â Â 1 | Â Â
0 | Â 1851 | 301M| Â 0 | Â 0 | 221 |1275 | Â 30k| 442 |
419 | Â 11 | Â 0 | Â 0 |-6.643694e+04 |-7.919237e+04 |
 19.20%</font></div>
<div><font face="monospace, monospace">Â 24.3s| Â Â 1 | Â Â
0 | Â 2116 | 416M| Â 0 | Â 0 | 197 |1275 | 525 | 416 |
469 | Â 38 | Â 0 | Â 0 |-6.643694e+04 |-7.919237e+04 |
 19.20%</font></div>
<div><font face="monospace, monospace">....</font></div>
<span class="m_-5574414360109757784HOEnZb"><font color="#888888">
<div><br>
</div>
<div><br>
</div>
-- <br>
<div class="m_-5574414360109757784m_-5620744507916354856gmail_signature">James
Cussens<br>
Dept of Computer Science &<br>
York Centre for Complex Systems Analysis<br>
Room 326, The Hub, Deramore Lane       Tel   <a href="tel:+44%201904%20325371" value="+441904325371" target="_blank">+44 (0)1904
325371</a><br>
University of York                 Â
   Fax  <a href="tel:+44%201904%20500159" value="+441904500159" target="_blank">+44 (0)1904
500159</a><br>
York YO10 5GE, UK Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â <a href="http://www.cs.york.ac.uk/%7Ejc" target="_blank">http://www.cs.york.ac.uk/~jc</a><br>
<a href="http://www.york.ac.uk/docs/disclaimer/email.htm" target="_blank">http://www.york.ac.uk/docs/dis<wbr>claimer/email.htm</a></div>
</font></span></div>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div class="m_-5574414360109757784gmail_signature" data-smartmail="gmail_signature">James
Cussens<br>
Dept of Computer Science &<br>
York Centre for Complex Systems Analysis<br>
Room 326, The Hub, Deramore Lane       Tel   +44
(0)1904 325371<br>
University of York                   Â
 Fax  <a href="tel:+44%201904%20500159" value="+441904500159" target="_blank">+44 (0)1904 500159</a><br>
York YO10 5GE, UK Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â <a href="http://www.cs.york.ac.uk/%7Ejc" target="_blank">http://www.cs.york.ac.uk/~jc</a><br>
<a href="http://www.york.ac.uk/docs/disclaimer/email.htm" target="_blank">http://www.york.ac.uk/docs/<wbr>disclaimer/email.htm</a></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">James Cussens<br>Dept of Computer Science &<br>York Centre for Complex Systems Analysis<br>Room 326, The Hub, Deramore Lane       Tel   +44 (0)1904 325371<br>University of York                     Fax  +44 (0)1904 500159<br>York YO10 5GE, UK                <a href="http://www.cs.york.ac.uk/~jc" target="_blank">http://www.cs.york.ac.uk/~jc</a><br><a href="http://www.york.ac.uk/docs/disclaimer/email.htm" target="_blank">http://www.york.ac.uk/docs/disclaimer/email.htm</a></div>
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