def next(self, state, **runopts):
bqm = state.problem
if self.size > len(bqm):
raise ValueError("subproblem size cannot be greater than the problem size")
variables = select_random_subgraph(bqm, self.size)
sample = state.samples.change_vartype(bqm.vartype).first.sample
subbqm = bqm_induced_by(bqm, variables, sample)
return state.updated(subproblem=subbqm)
def next(self, state, **runopts):
bqm = state.problem
size = self.size
if size > len(bqm):
logger.debug("{} subproblem size greater than the problem size, "
"adapting to problem size".format(self.name))
size = len(bqm)
variables = select_random_subgraph(bqm, size)
sample = state.samples.change_vartype(bqm.vartype).first.sample
subbqm = bqm_induced_by(bqm, variables, sample)
logger.debug("{} selected {} subproblem variables: {!r}".format(
self.name, len(variables), variables))
return state.updated(subproblem=subbqm)