Pim van Velzen
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Activity overview
Latest activity by Pim van Velzen-
Pim van Velzen created a post,
Fixed route delivery inventory calculation
AnsweredHi all, For a group project we are trying to model a tram line, however we come across an infeasible model when adding constraints. The problem arises when we try to add constraint 8 and 9, but we ...
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Pim van Velzen commented,
Hi Jue, This significantly reduces the solving time, thank you so much for your help!
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Pim van Velzen commented,
Hi Jue, Thank you for your response! The problem arose when I was solving the model. I've already tried the tips that were in the article but unfortunately this didn't help. import numpy as np imp...
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Pim van Velzen created a post,
Running into a memory error when running optimization over a large time period
AnsweredHi all, Gurobi Optimizer version 9.5.2 build v9.5.2rc0 (win64)Thread count: 4 physical cores, 8 logical processors, using up to 8 threadsOptimize a model with 171 rows, 431 columns and 509 nonzeros...