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<div class="moz-cite-prefix">There is nothing wrong with the option
'-restart' or the file 'machine_magstadyn_a.pro', I just need to
smooth things down with inductive circuits...<br>
<br>
Altough the current is a bit hairy, the results are more than good
:<br>
( no scales to avoid problems)<br>
<img moz-do-not-send="false"
src="cid:part1.39B89803.6E93B105@voo.be" alt="" height="600"
width="900"><br>
<br>
Joseph<br>
<br>
Le 4/04/2018 à 12:16, Joseph Frippiat a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:d8564597-b5b2-cf9e-c1a6-8f06b1eb652e@voo.be">
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<div class="moz-cite-prefix">For the restarts, I don't do a
SaveSolution after the InitSolution.<br>
<br>
My simulation is inspired by the HeatReservoir example on the
old wiki.<br>
I use the same principle: a bash script exchanging data with
getdp through a .pro file and restarting the simulation as
needed.<br>
<br>
By mimicking the example, I'd modified the file
machine_magstadyn_a.pro like this for the restart:<br>
<br>
Operation {<br>
If(par_batch==0) // start of the simulation<br>
...<br>
Else // restarts<br>
InitSolution[A];<br>
//ReadSolution[A]; // redundant => warnings
"Prematured end of file"<br>
<br>
InitSolution[M];<br>
//ReadSolution[M]; // redundant => warnings
"Prematured end of file"<br>
<br>
InitSolution[T];<br>
//ReadSolution[T]; // redundant => warnings
"Prematured end of file"<br>
<br>
...<br>
EndIf // If(par_batch==0)<br>
<br>
...<br>
<br>
As in the example, for the restarts, I was also calling
ReadSolution (which caused problems) until Christophe has shown
me that it was not necessary.<br>
<br>
I have only discontinuities for the system A (electromagnetical
one) but not for de Mechanical one and not for the Thermal one.<br>
<br>
Joseph<br>
<br>
Le 4/04/2018 à 10:03, Ruth Vazquez Sabariego a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:88432305-A24E-4D3A-B4F5-AAFFDB95DA20@kuleuven.be">
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<div class="">Having a look at “machine_magstadyn_a.pro”, I
think that the problem may come from SaveSolution. </div>
<div class="">You have: </div>
<div class="">
<div style="margin: 0px; font-stretch: normal; font-size:
11px; line-height: normal; font-family: Monaco;
background-color: rgba(255, 255, 255, 0.8);" class=""> <span
style="font-variant-ligatures: no-common-ligatures"
class="">InitSolution[A];</span></div>
<div style="margin: 0px; font-stretch: normal; font-size:
11px; line-height: normal; font-family: Monaco;
background-color: rgba(255, 255, 255, 0.8);" class=""> <span
style="font-variant-ligatures: no-common-ligatures"
class="">SaveSolution[A];</span></div>
</div>
<div class=""><br class="">
</div>
<div class="">InitSolution takes the data from your res file.</div>
<div class="">SaveSolution saves the current solution, which is
not yet computed, thus zero. </div>
<div class=""><br class="">
</div>
<div class="">Can you try by commenting it out: </div>
<div class="">//<span style="font-family: Monaco; font-size:
11px; background-color: rgba(255, 255, 255, 0.8);" class="">SaveSolution[A];</span></div>
<div class=""><br class="">
</div>
<div class="">Let me know if that solves the issue. </div>
<div class=""><br class="">
</div>
<div class="">Best,</div>
<div class="">Ruth</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On 3 Apr 2018, at 20:57, Joseph Frippiat <<a
href="mailto:joseph_frippiat@voo.be" class=""
moz-do-not-send="true">joseph_frippiat@voo.be</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div text="#000000" bgcolor="#FFFFFF" class="">
<div class="moz-cite-prefix">Ruth,<br class="">
<br class="">
yes, the discontinuities coincide with the restart:
the value of the first point after a restart is not
correct for the current.<br class="">
<br class="">
For the simulation, I use a modified version of
machine_magstadyn_a.pro. The current is the current
in the circuit connected to the stator coils (which is
in fact another rotor...)<br class="">
<br class="">
For the restart, I do<br class="">
getdp model1 -restart -solve CoSimulation -bin -v 3<br
class="">
(the post-processing is called from the Resolution as
it is done in the original machine_magstadyn_a.pro)<br
class="">
<br class="">
No point seems to be missing as one can see in the log
:<br class="">
<br class="">
end of restart 1:<br class="">
<br class="">
...<br class="">
Info : Theta Time = 0.12008873 s (TimeStep 1094,
DTime 0.00010795)<br class="">
Info : IterativeLoop converged (6 iterations,
residual 6.57266e-07)<br class="">
E n d P r o c e s s i n g<br class="">
Info : Stopped (Tue Apr 3 13:17:21 2018, Wall =
77.2714s, CPU = 261.174s, Mem = 38.8398Mb)<br class="">
<br class="">
beginning of restart 2:<br class="">
<br class="">
Info : Started (Tue Apr 3 13:17:22 2018, Wall =
0.0200088s, CPU = 0.055353s, Mem = 4.40234Mb)<br
class="">
...<br class="">
P r e - P r o c e s s i n g . . .<br class="">
Info : System 1/3: 745 Dofs<br class="">
Info : System 2/3: 4 Dofs<br class="">
Info : System 3/3: 575 Dofs<br class="">
E n d P r e - P r o c e s s i n g<br class="">
P r o c e s s i n g . . .<br class="">
Info : Theta Time = 0.12019546 s (TimeStep 1095,
DTime 0.00010673)<br class="">
Info : IterativeLoop converged (5 iterations,
residual 1.42442e-07)<br class="">
...<br class="">
<br class="">
Joseph<br class="">
<br class="">
Le 3/04/2018 à 11:33, Ruth Vazquez Sabariego a écrit :<br
class="">
</div>
<blockquote type="cite"
cite="mid:51B27772-F2CB-4288-817B-AD3C044B0C4D@kuleuven.be"
class="">
<div class="">Hi Joseph, </div>
<div class=""><br class="">
</div>
<div class="">Do the discontinuities coincide with the
restart?</div>
<div class="">How are you doing the post-processing
for getting the current?</div>
<div class="">Does it behave in the same way if you do
post-pro straightaway or just after?</div>
<div class=""><br class="">
</div>
<div class="">I mean</div>
<div class="">getdp xxx.pro -restart -solve xxx -pos
xxx</div>
<div class="">OR</div>
<div class="">getdp xxx.pro -restart -solve xxx</div>
<div class="">getdp xxx.pro -pos xxx</div>
<div class=""><br class="">
</div>
<div class="">The behaviour should be the same but it
could be that we are missing a time step…</div>
<div class="">I do not use restart often but when I do
I take the first option without observing any
particular weird behaviour.</div>
<div class=""><br class="">
</div>
<div class="">Best regards, </div>
<div class="">Ruth</div>
<div class=""><br class="">
</div>
<br class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On 3 Apr 2018, at 01:29, Joseph
Frippiat <<a
href="mailto:joseph_frippiat@voo.be" class=""
moz-do-not-send="true">joseph_frippiat@voo.be</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div text="#000000" bgcolor="#FFFFFF" class="">
<p class="">Hello,</p>
<p class="">as one can see on the following
picture, I get discontinuities each time I
restart my calculations with the -restart
option.</p>
<p class="">There is surely something that I
miss but I can't find it.</p>
<p class="">Did someone else encouter this
problem that could point me to a solution ?</p>
<p class="">Thanks in advance,</p>
<p class="">Joseph<br class="">
</p>
<p class="">Here is the picture:</p>
<span id="cid:part1.F745617A.ED39B51C@voo.be"
class=""><Figure 0.png></span> </div>
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