pyomo
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Pyomo
An object-oriented algebraic modeling language in Python for structured optimization problems.
## Summary When a Pyomo model has a Reference to a Var, the Var gets populated to the direct/persistent solver multiple times. @dguittet found this issue in a larger IDAES...
## Summary It would be useful to add some capability to manage Gurobi environments (`gurobipy.Env` objects) in the `GurobiDirect` solver. I'm happy to submit a PR for the changes described...
## Summary The GDP transformations create weakrefs, meaning that transformed models are currently unpickleable.
After solving a model (code [here)](https://gist.github.com/goghino/79302c79b558e4060fbc3bf2d2d7d17d) using SCIP (SCIP version 7.0.1 [precision: 8 byte] [memory: block] [mode: optimized] [LP solver: SoPlex 5.0.1] [GitHash: b41d526acf]), the `results` components (i.e. gap, bounds,...
## Summary When working with empirical correlations involving power laws, we occasionally run into cases where the units of an empirical parameter depend on the value of another empirical parameter....
## Summary We had some issues with APPSI extensions on Windows before, but this is likely resolved now. This issue is to track testing that for the next release. ###...
## Summary Reading and writing Pyomo models to and from MiniZinc and FlatZinc files. ### Rationale Pyomo & MiniZinc share similar goal as solver agnostic tools for specifying optimization problems....
## Summary There has been a long-standing argument regarding `kernel` and `core` API differences. We have yet to reach a consensus on this - this issue is here to track...
## Fixes ## Summary/Motivation: Currently when CPLEX returns "No Solution", this isn't captured in any of the Pyomo solution or solver data objects. We can identify "No Solution" because when...
## Fixes # . ## Summary/Motivation: ## Changes proposed in this PR: - - ### Legal Acknowledgement By contributing to this software project, I agree to the following terms and...
