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Python Model.setIntParam方法代码示例

本文整理汇总了Python中pyscipopt.Model.setIntParam方法的典型用法代码示例。如果您正苦于以下问题:Python Model.setIntParam方法的具体用法?Python Model.setIntParam怎么用?Python Model.setIntParam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pyscipopt.Model的用法示例。


在下文中一共展示了Model.setIntParam方法的2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: model

# 需要导入模块: from pyscipopt import Model [as 别名]
# 或者: from pyscipopt.Model import setIntParam [as 别名]
def model():
    # create solver instance
    s = Model()

    # include separator
    sepa = GMI()
    s.includeSepa(sepa, "python_gmi", "generates gomory mixed integer cuts", priority = 1000, freq = 1)

    # turn off presolve
    s.setPresolve(SCIP_PARAMSETTING.OFF)
    # turn off heuristics
    s.setHeuristics(SCIP_PARAMSETTING.OFF)
    # turn off propagation
    s.setIntParam("propagating/maxrounds", 0)
    s.setIntParam("propagating/maxroundsroot", 0)
    # turn off some cuts
    s.setIntParam("separating/strongcg/freq", -1)
    s.setIntParam("separating/gomory/freq", -1)
    s.setIntParam("separating/aggregation/freq", -1)
    s.setIntParam("separating/mcf/freq", -1)
    s.setIntParam("separating/closecuts/freq", -1)
    s.setIntParam("separating/clique/freq", -1)
    s.setIntParam("separating/zerohalf/freq", -1)

    # only two rounds of cuts
    s.setIntParam("separating/maxroundsroot", 2)

    return s
开发者ID:SCIP-Interfaces,项目名称:PySCIPOpt,代码行数:30,代码来源:test_gomory.py

示例2: Model

# 需要导入模块: from pyscipopt import Model [as 别名]
# 或者: from pyscipopt.Model import setIntParam [as 别名]
        if self.count == 1:
            down, eq, up = self.model.branchVarVal(self.cont, 1.3)
            self.model.chgVarLbNode(down, self.cont, -1.5)
            self.model.chgVarUbNode(up, self.cont, 3.0)
            self.was_called_val = True
            down2, eq2, up2 = self.model.branchVar(self.integral)
            self.was_called_int = True
            self.model.createChild(6, 7)
            return {"result": SCIP_RESULT.BRANCHED}




m = Model()
m.setIntParam("presolving/maxrounds", 0)
#m.setLongintParam("lp/rootiterlim", 3)
m.setRealParam("limits/time", 60)

x0 = m.addVar(lb=-2, ub=4)
r1 = m.addVar()
r2 = m.addVar()
y0 = m.addVar(lb=3)
t = m.addVar(lb=None)
l = m.addVar(vtype="I", lb=-9, ub=18)
u = m.addVar(vtype="I", lb=-3, ub=99)

more_vars = []
for i in range(1000):
    more_vars.append(m.addVar(vtype="I", lb= -12, ub=40))
    m.addCons(quicksum(v for v in more_vars) <= (40 - i) * quicksum(v for v in more_vars[::2]))
开发者ID:SCIP-Interfaces,项目名称:PySCIPOpt,代码行数:32,代码来源:test_branch_probing_lp.py


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