本文整理汇总了Python中pyomo.core.ConcreteModel.v[i]方法的典型用法代码示例。如果您正苦于以下问题：Python ConcreteModel.v[i]方法的具体用法？Python ConcreteModel.v[i]怎么用？Python ConcreteModel.v[i]使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pyomo.core.ConcreteModel的用法示例。
在下文中一共展示了ConcreteModel.v[i]方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: criticalityCheck
# 需要导入模块: from pyomo.core import ConcreteModel [as 别名]
# 或者: from pyomo.core.ConcreteModel import v[i] [as 别名]
def criticalityCheck(self, x, y, z, rom_params, worstcase=False, M=[0.0]):
model = self.model
self.setVarValue(x=x,y=y,z=z)
self.setBound(x, y, z, 1e10)
self.deactiveExtraConObj()
self.activateRomCons(x, rom_params)
optGJH = SolverFactory('contrib.gjh')
optGJH.solve(model, tee=False, symbolic_solver_labels=True)
g, J, varlist, conlist = model._gjh_info
l = ConcreteModel()
l.v = Var(varlist, domain=Reals)
for i in varlist:
#dummy = model.find_component(i)
l.v[i] = 0.0
l.v[i].setlb(-1.0)
l.v[i].setub(1.0)
if worstcase:
if M.all() == 0.0:
print('WARNING: worstcase criticality was requested but Jacobian error bound is zero')
l.t = Var(range(0, self.ly), domain=Reals)
for i in range(0, self.ly):
l.t[i].setlb(-M[i])
l.t[i].setub(M[i])
def linConMaker(l, i):
# i should be range(len(conlist) - 1)
# because last element of conlist is the objective
con_i = model.find_component(conlist[i])
isEquality = con_i.equality
isROM = False
if conlist[i][:7] == '.' + self.TRF.name + '.rom':
isROM = True
romIndex = int(filter(str.isdigit, conlist[i]))
# This is very inefficient
# Fix this later if these problems get big
# This is the ith row of J times v
Jv = sum(x[2] * l.v[varlist[x[1]]] for x in J if x[0] == i)
if isEquality:
if worstcase and isROM:
return Jv + l.t[romIndex] == 0
else:
return Jv == 0
else:
lo = con_i.lower
up = con_i.upper
if lo is not None:
level = lo.value - con_i.lslack()
if up is not None:
return (lo.value <= level + Jv <= up.value)
else:
return (lo.value <= level + Jv)
elif up is not None:
level = up.value - con_i.uslack()
return (level + Jv <= up.value)
else:
raise Exception(
"This constraint seems to be neither equality or inequality: " + conlist(i))
l.lincons = Constraint(range(len(conlist)-1), rule=linConMaker)
l.obj = Objective(expr=sum(x[1] * l.v[varlist[x[0]]] for x in g))
# Calculate gradient norm for scaling purposes
gfnorm = sqrt(sum(x[1]**2 for x in g))
opt = SolverFactory(self.config.solver)
opt.options.update(self.config.solver_options)
#opt.options['halt_on_ampl_error'] = 'yes'
#opt.options['max_iter'] = 5000
results = opt.solve(
l, keepfiles=self.keepfiles, tee=self.stream_solver)
if ((results.solver.status == SolverStatus.ok)
and (results.solver.termination_condition == TerminationCondition.optimal)):
l.solutions.load_from(results)
if gfnorm > 1:
return True, abs(l.obj())/gfnorm
else:
return True, abs(l.obj())
else:
print("Waring: Crticality check fails with solver Status: " + str(results.solver.status))
print("And Termination Conditions: " + str(results.solver.termination_condition))
return False, infinity