Jacob Wren
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Activity overview
Latest activity by Jacob Wren-
Jacob Wren commented,
Thanks, Eli.
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Jacob Wren created a post,
Suppress all console output from Gurobi
AnsweredHi, I am using Pyomo in a floating license environment. I set the OutputFlag parameter to 0 before the Gurobi environment is started via: import pyomo.environ as pyoopt = pyo.SolverFactory("gurobi_...
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Jacob Wren commented,
Hi Jaromił, It might be best to solve the model as a nonconvex one instead of trying to "trick" it into a convex one. Two questions: 1) How do I know at what value of epsilon the model goes from...
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Jacob Wren created a post,
QCQP tuner difficulties
AnsweredHello, Gurobi is unable to solve my convex quadratically-constrained quadratic program (QCQP) for certain values of a tuning parameter. This is my explanation. Call the tuning parameter epsilon. W...
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Jacob Wren commented,
Ahh. Thank you, Jaromił!
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Jacob Wren commented,
Okay. Thank you, Eli!
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Jacob Wren commented,
Hi Jaromil, For LP it can happen as well. This is because different algorithms are executed depending on the number of Threads. But I set the Method parameter to 4. Thanks, Jake
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Jacob Wren commented,
Hi Jaromil, Isn't this answer only relevant to mixed integer programming? Thanks, Jake
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Jacob Wren commented,
Hello Eli, There are a few details that I left out of my scheme. I use MPI for parallelization across multiple nodes. Then, I use the Python library Joblib for parallelization across multiple cores...
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Jacob Wren commented,
Hi Eli, Within each process, there is only one Gurobi environment, and only one user thread interacts with that environment. How do you know that only one user thread interacts with that environm...