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Hello Ted,<br>
<br>
Unfortunately I can not share an instance file as I'm not the owner
of the material.<br>
<br>
BR<br>
<br>
Mikko<br>
<br>
<br>
20.5.2014 16:55, Ted Ralphs kirjoitti:
<blockquote
cite="mid:CA+GYycvWUtvkfaHaH9sau2BXEwnh=+MTe-SOa89tWk_kQFjpPg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>This does sound like a bug in the pre-processor. The
pre-processor is a relatively new addition to SYMPHONY. Can
you share an instance file that demonstrates this off-line?<br>
<br>
</div>
Cheers,<br>
<br>
Ted<br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, May 20, 2014 at 9:19 AM, Mikko
Alinikula - SUBNIC OY <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:subnic@kolumbus.fi"
target="_blank">subnic@kolumbus.fi</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">Hello Ted,<br>
<br>
I calculate the my truss-problem in 2 phases. First a
fixed-geometry-solution is optimized with SYMPHONY and it
takes around 100 ms to get a solution. In phase 2 I input
that solution as a initial solution using
sym_set_col_solution-function to calculate the real problem.<br>
<br>
I got this working with small models but larger models with
1000 variables or so crashed when I called sym_solve.
Sometimes a memory error was issued but more often the
system just crashed.<br>
<br>
But there seems to be a workaround to this .. if I set
sym_set_int_param(env, "prep_level", 0) I got the system
working with models having more than 3000 variables and
10000 restricting equations.<br>
<br>
Maybe there is a bug in the preprosessor in the
Win32-environment?<br>
<br>
BR<br>
<br>
Mikko<br>
<br>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
Dr. Ted Ralphs<br>
Associate Professor, Lehigh University<br>
(610) 628-1280<br>
ted 'at' lehigh 'dot' edu<br>
<a moz-do-not-send="true"
href="http://coral.ie.lehigh.edu/%7Eted" target="_blank">coral.ie.lehigh.edu/~ted</a><br>
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</blockquote>
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