penaltymodel: penaltymodel (penalty model solver for Ising model or a QUBO) penaltymodel: penaltymodel: penaltymodel: penaltymodel: One approach to solve a constraint satisfaction problem (CSP) using penaltymodel: an Ising model or a QUBO, is to map each individual constraint in penaltymodel: the CSP to a "small" Ising model or QUBO. This mapping is called penaltymodel: a penalty model. penaltymodel: penaltymodel: penaltymodel: