[Cbc] bad_allocation error in large MILP

[Haroldo Santos]

Do you have a 64 bit operating system installed ? If not you would not use
all your available memory.
Em 10/06/2013 07:09, "Aditya Gandhi" <agandhi at sapient.com> escreveu:

>  I am currently using CBC to solve a large MILP
>
> The model has ~130K rows, 260K cols, 20K integers (all binary) and ~650K
> elements
>
> When we try to solve the model using cbc.exe it crashes. Basic exception
> handling code added to the tool suggests that CBC crashes with a
> bad_allocation error suggesting memory issues. the exe gets to about 1.8 Gb
> when it crashes. We are running this on a box which has 16GB ram and at
> time of crash had about 50% of memory unused.
>
> Any suggestions on what we should do to solve this.
>
> FYI.. running it with dualSimplex option yields an integer feasible answer
> in ~ 1.5 hrs
>
> Regards
> Aditya
>
>
>
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