[Ipopt] IPOPT and CUTEr

[Jonathan Hogg]

Dear all,

Just wondering if anyone had successfully made IPOPT work with CUTEr 
recently?

I've tried it with various linear solvers, but can't seem to get the 
"right" answer for several problems, even where almost every other 
solver under the sun seems to agree (of course some problems will have 
more than one local optimal, but I think I'm picking convex QPs mainly)

One particular example where everyone else seems to agree is AUG2D, 
where I believe the correct answer is 1.6877257114E+06, but IPOPT/MA57 
is getting 3.3748235057934504e+06 (other solvers incl some reported by 
Andreas agree with the first answer at least in the first few sf).

Thanks,

Jonathan.
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