Nicholas Parham
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Activity overview
Latest activity by Nicholas Parham-
Nicholas Parham commented,
Riley Clement thanks for the response and it definitely helps. Makes sense how the solver is handling things internally. For LP warm start with the Start attribute, I was adding a dummy binary as M...
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Nicholas Parham commented,
import gurobipy as gpimport numpy as npimport randomrandom.seed(2023)env = gp.Env(empty = True)env.setParam('OutputFlag', 0)env.setParam('Presolve', 0)env.setParam('LPWarmStart', 2)env.start()model...
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Nicholas Parham commented,
My temporary fix has been to add a single binary variable to the model, forcing Gurobi to use the variable start attributes since it is now technically a MIP. I am still hoping for a better resolut...
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Nicholas Parham created a post,
LP Warm Start (Python)
OpenI have an LP implemented with gurobipy. First, it takes 38 simplex iterations to reach optimality. Then, I immediately invoke optimize on the same instance to confirm that the previous solution is ...
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Nicholas Parham created a post,
Max Flow Algorithms
AnsweredAre the max flow algorithms implemented in Gurobi sequential or parallel or a mix of both?
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Nicholas Parham created a post,
Export Pre-solved Gurobi Model
AnsweredHow do you export the pre-solved Gurobi model in AMPL?
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Nicholas Parham created a post,
Omit Variable in Branch and Bound
AnsweredIf I have a model with two integer variables: Y_i: integer time to schedule activity i X_it: binary indicator if activity i is scheduled in time t How can I communicate to Gurobi (prefer...