<div dir="ltr">Many thanks, the workaround works.<div><br></div><div>Best regards,</div><div><br></div><div>Ramon.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 28 April 2014 22:48, Stefan Vigerske <span dir="ltr"><<a href="mailto:stefan@math.hu-berlin.de" target="_blank">stefan@math.hu-berlin.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
seems that the -q option disables too much output.<br>
A workaround is not to use it:<br>
<br>
$ ./scip-3.1.0.linux.x86_64.gnu.<u></u>opt.spx -c "read /tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac.pip" -c "set display verblevel 0" -c "set limits solutions 1" -c "optimize" -c "write solution /tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac-sol.<u></u>txt" -c "quit" > /dev/null<br>
<br>
<br>
Stefan<div><div class="h5"><br>
<br>
On 04/28/2014 09:31 PM, Ramón Casero Cañas wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
Dear all,<br>
<br>
I'm having an odd problem that was not happening with v3.0.2. I solve the<br>
attached problem calling scip from the command line on Ubuntu Saucy.<br>
<br>
$ ./scip-3.1.0.linux.x86_64.gnu.<u></u>opt.spx -q -c "read<br>
/tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac.pip" -c "set display<br>
verblevel 0" -c "set limits solutions 1" -c "optimize" -c "write solution<br>
/tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac-sol.<u></u>txt" -c "quit"<br>
<br>
The file it writes with the solution is empty.<br>
<br>
However, if I do the same in interactive mode<br>
<br>
$ ./scip-3.1.0.linux.x86_64.gnu.<u></u>opt.spx<br>
SCIP version 3.1.0 [precision: 8 byte] [memory: block] [mode: optimized]<br>
[LP solver: SoPlex 2.0.0] [GitHash: 577ee45]<br>
Copyright (c) 2002-2014 Konrad-Zuse-Zentrum fuer Informationstechnik Berlin<br>
(ZIB)<br>
<br>
External codes:<br>
SoPlex 2.0.0 Linear Programming Solver developed at Zuse<br>
Institute Berlin (<a href="http://soplex.zib.de" target="_blank">soplex.zib.de</a>) [GitHash: 568f354]<br>
cppad-20140000.1 Algorithmic Differentiation of C++ algorithms<br>
developed by B. Bell (<a href="http://www.coin-or.org/CppAD" target="_blank">www.coin-or.org/CppAD</a>)<br>
ZLIB 1.2.8 General purpose compression library by J. Gailly and<br>
M. Adler (<a href="http://zlib.net" target="_blank">zlib.net</a>)<br>
GMP 5.1.3 GNU Multiple Precision Arithmetic Library developed<br>
by T. Granlund (<a href="http://gmplib.org" target="_blank">gmplib.org</a>)<br>
ZIMPL 3.3.2 Zuse Institute Mathematical Programming Language<br>
developed by T. Koch (<a href="http://zimpl.zib.de" target="_blank">zimpl.zib.de</a>)<br>
Ipopt 3.11.7 Interior Point Optimizer developed by A. Waechter<br>
<a href="http://et.al" target="_blank">et.al</a>. (<a href="http://www.coin-or.org/Ipopt" target="_blank">www.coin-or.org/Ipopt</a>)<br>
<br>
user parameter file <scip.set> not found - using default parameters<br>
<br>
SCIP> read /tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac.pip<br>
<br>
read problem </tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac.pip><br>
============<br>
<br>
original problem has 46 variables (0 bin, 0 int, 0 impl, 46 cont) and 126<br>
constraints<br>
SCIP> set display verblevel 0<br>
display/verblevel = 0<br>
SCIP> set limits solutions 1<br>
limits/solutions = 1<br>
SCIP> optimize<br>
<br>
<br>
******************************<u></u>******************************<u></u>******************<br>
This program contains Ipopt, a library for large-scale nonlinear<br>
optimization.<br>
Ipopt is released as open source code under the Eclipse Public License<br>
(EPL).<br>
For more information visit <a href="http://projects.coin-or.org/Ipopt" target="_blank">http://projects.coin-or.org/<u></u>Ipopt</a><br>
******************************<u></u>******************************<u></u>******************<br>
<br>
<br>
SCIP> write solution<br>
/tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac-sol.txt<br>
<br>
written solution information to file<br>
</tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac-sol.<u></u>txt><br>
<br>
SCIP> quit<br>
<br>
<br>
The output solution file is not empty (please find attached).<br>
<br>
Likewise, if I run from the command line, but calling the previous version<br>
of SCIP,<br>
<br>
./scip-3.0.2.linux.x86_64.gnu.<u></u>opt.spx -q -c "read<br>
/tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac.pip" -c "set display<br>
verblevel 0" -c "set limits solutions 1" -c "optimize" -c "write solution<br>
/tmp/model-tpb28d93c2_6fe6_<u></u>44cf_b8ca_8e95135f2fac-sol.<u></u>txt" -c "quit"<br>
<br>
then the solution file is not empty either.<br>
<br>
<br>
Best regards,<br>
<br>
Ramon.<br>
<br>
<br>
<br>
<br></div></div>
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<br>
</blockquote>
<br>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">Dr. Ramón Casero Cañas<br><br>Institute of Biomedical Engineering<br>Department of Engineering Science, University of Oxford<br>Old Road Campus Research Building, Headington <br>
Oxford <br>OX3 7DQ<br>UK<br><br>tlf +44 (0) 1865 617716<br>twitter @Ramon_Casero<br>web <a href="http://www.cs.ox.ac.uk/people/Ramon.CaseroCanas/" target="_blank">http://www.cs.ox.ac.uk/people/Ramon.CaseroCanas/</a><br>
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