[Ipopt] matlab 7.8 interface

Peter Carbonetto pcarbo at cs.ubc.ca
Sat May 9 13:11:33 EDT 2009

> i am having trouble running the examples in matlab 7.8
> on a 64  bit linux box. the optimizer fails for all the examples
> and it appears to be returning extremely small or large numbers
> mathworks indicates that the mex interface files have to be upgraded
> to support large arrays (64 bit integers)
> has anybody succeeded in running ipopt in matlab 7.8

There are several reasons why it may not be working. It may also be that 
you didn't install the interface correctly. I don't know. I know at least 
one other person that got it working on 64-bit Linux. I've only tried 
version 7.7 of Matlab. It is unlikely that the new version is causing 

I would suggest: 1.) if you have access to Matlab 7.7 or earlier, try 
that; 2.) try the C++ examples if you can on your 64-bit machine to make 
sure it isn't a problem with your installation of IPOPT.

If both of those work, I'll see what I can do to help.

Peter Carbonetto
Ph.D. Candidate
Dept. of Computer Science
University of British Columbia

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