Add multiple circuits on a CP model

[Ellie Choi]

Hi,

Is it possible to add multiple circuits on a CP model such as VRP?

I want to partition the origin weight matrix into multiple submatrices and then implement a circuit constraint respectively in one CP model.

Thanks indeed

Ellie

[blind.line]

Yes. 

There is also AddMultipleCircuit, but is a little convoluted to use. https://github.com/google/or-tools/blob/6897c64dbf7d18b97d3563d28dc4820e3eb52022/ortools/sat/python/cp_model.py#L1128C27-L1128C27

James

On Aug 1, 2023, at 19:24, Ellie Choi <lva...@gmail.com> wrote:

Hi,

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[blind.line]

Actually, perhaps I misspoke. I assumed you were talking about the CPSat solver. 

In the routing solver I think a similar functionality can be achieved using vehicle-specific cost functions 

James

On Aug 1, 2023, at 20:45, blind.line <blind.lin...@gmail.com> wrote:

Yes.