Chags
Phd student
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Latest activity by Chags-
Chags created a post,
How to relax integrality for some variables?
AnsweredI'd like to implement some relax-fix heuristics with my model in python. I know we can fix values with variables lb and ub attributes. But how could I relax x[i,j] from {0,1} to a continuous variab...
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Chags commented,
I usually make this by change the variable bounds try: w[(7,1)].ub = 2w[(7,1)].lb = 2
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Chags created a post,
Lagrangian Relaxation bound greater than optimal solution
OngoingI am working on a Lagrangian relaxation for a minimization MIP. Everything seemed to be working fine before I started to run a batch of instances. Checking the log results for one of the instances...
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Chags created a post,
Use of academic license on cloud services
AnsweredHi I am currently using a gurobi academic license for my doctoral research. Recently we are facing serious infrastructure issues in my lab and I have been thinking about renting cloud services for ...