[Ipopt] size limitations in precompiled binaries for IpOpt?
Stefan Vigerske
stefan at math.hu-berlin.de
Thu Oct 27 18:54:27 EDT 2011
Hi,
no, the only limits are the size of your memory and the address space.
But your problem size does not seem large.
Stefan
> For the precompiled binaries (3.9.2 in particular), are there any limitations on the sizes of the arrays?
> I’m working with a problem of packing unequal size circles, which works fine for up to 20 circles but
> dies for 21 circles. The error message I get implies that one of the arrays is the wrong size.
> I’m using Mathematica to calculate the objective function, constraints, and the various derivatives.
> The problem could also be in my interface to Mathematica.
>
> Here’s the beginning of the log for 20 circles:
>
> This is Ipopt version 3.9.2, running with linear solver mumps.
>
> Number of nonzeros in equality constraint Jacobian...: 0
> Number of nonzeros in inequality constraint Jacobian.: 820
> Number of nonzeros in Lagrangian Hessian.............: 820
>
> Total number of variables............................: 41
> variables with only lower bounds: 0
> variables with lower and upper bounds: 41
> variables with only upper bounds: 0
> Total number of equality constraints.................: 0
> Total number of inequality constraints...............: 210
> inequality constraints with only lower bounds: 0
> inequality constraints with lower and upper bounds: 210
> inequality constraints with only upper bounds: 0
>
>
>
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