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errors using yalmip and sdpt3
(3 viewing) Joejang10, t4thf34p1, (1) Guest
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TOPIC: errors using yalmip and sdpt3
#5720
errors using yalmip and sdpt3 1 Year, 8 Months ago Karma: 0
I am trying to maximize a logdet term. I did it previously and had no errors except when I used sedumi instead of sdpt3.
Now I use sdpt3 and get the following errors, not on every run but a quite a few times
'Numerical problems' and 'Lack of progress'

I use YALMIP R20110608, SDPT3 version 4.0, matlab 7.11.0
I have tried it on matlab 7.3.0 as well

Any idea why this happens and any corrections ?

kind regards,
Peter.
acekris
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graphgraph
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#5721
Re: errors using yalmip and sdpt3 1 Year, 8 Months ago Karma: 32
It is very easy to write a solver which always succeeds without numerical errors. Here is the implementation

x = randomguess;
numerical_problems = 'No';



The only thing that can be said from the data and code you supply is that sdpt3 either performs worse and actually has severe numerical problems, or is pickier about what it considers to be numerical problems.
lofberg
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