Eli Towle
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Activity overview
Latest activity by Eli Towle-
Eli Towle commented,
Hi Andrew, I opened up a support ticket for you so we can investigate this further. Thanks! Eli
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Eli Towle commented,
What do you mean by "edit every solution of the iteration"? Are you referring to mapping a solution to the convex QP \( {\bf(3)} \) to the original (non-convex) problem \( {\bf(1)} \)? If so, this ...
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Eli Towle commented,
The values of the X variable attributes come from the model solution and cannot be manually edited. That said, why do you want to edit the variable values in the first place? With the code portfoli...
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Eli Towle commented,
Pyomo does not include any integration to Gurobi's general constraint methods like Model.addGenConstrExp(). If you use Pyomo's persistent Gurobi interface, you can access the underlying gurobipy Mo...
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Eli Towle created an article,
Why does Gurobi 10.0.0 report an incorrect objective value for my multi-objective problem?
Gurobi 10.0.0 includes a bug that can result in Gurobi printing an incorrect optimal objective value for multi-objective optimization problems in the log file. This issue will be fixed in the next ...
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Eli Towle commented,
I'm not aware of a way to suppress these messages in Pyomo. You can do this using Gurobi's native Python API by following the instructions in the article How do I suppress all console output from G...
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Eli Towle commented,
Since your code uses process-based parallelism (not thread-based parallelism) and you do not directly interact with the Gurobi environment, you shouldn't run into any issues related to thread safety.
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Eli Towle commented,
By default, Python executes the Python code within a process using a single thread (the Gurobi shared library launches additional solver threads during solve time). In order for multiple user threa...
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Eli Towle commented,
What exactly do you mean by interact? Directly or indirectly accessing or manipulating the environment data structure (in Python, the Env object). Can each process that creates an environment ha...
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Eli Towle commented,
Each model is tied to a specific environment. However, environments and models are two very different data structures: The environment defines the configuration and start/end of a Gurobi session. ...