OpenMDAO：离散优化问题；如何定义离散变量集？
我正在尝试学习如何使用 OpenMDAO 来解决离散优化问题。我看到可以定义离散变量（https:/ /openmdao.org/newdocs/versions/latest/features/core_features/working_with_components/discrete_variables.html）但我不能找到可以定义允许优化器选择的一组可能值的位置。
你能帮助我吗？
I am trying to learn how to use OpenMDAO in order to solve discrete optimization problems. I saw that it was possible to define discrete variables (https://openmdao.org/newdocs/versions/latest/features/core_features/working_with_components/discrete_variables.html) but I cannot find where I can define the set of possible values that the optimizer is allowed to select.
Can you help me?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
OpenMDAO 支持使用离散变量作为支持它们的某些优化器的优化器变量，但该支持仅限于整数变量。您只能指定下限和上限，就像使用连续变量一样。
可以在此处找到相关示例，其中“xI”是离散变量：
https://openmdao.org/newdocs/versions/latest/features/building_blocks/drivers/genic_algorithm.html
请注意如果您没有在驱动程序选项中为其设置“位”值，
SimpleGADriver还将对任何连续 OpenMDAO 变量进行编码，就好像它是一个整数一样。OpenMDAO supports using discrete variables as optimizer variables for certain optimizers that support them, but that support is limited to integer variables. You can only specify a lower and upper bound, just as you would with a continuous variable.
A relevant example can be found here, where 'xI' is a discrete variable:
https://openmdao.org/newdocs/versions/latest/features/building_blocks/drivers/genetic_algorithm.html
Note that the
SimpleGADriverwill also encode any continuous OpenMDAO variable as if it were an integer, if you don't set a 'bits' value for it in the driver's options.