Sudheer Reddy
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Recent activity by Sudheer Reddy-
How to identify best approach to solve the problem
AnsweredGiven the following logistics network: 1 Central Distribution Center (DC), 3 Regional DCs, and 60 customers; with weekly shipments from the Central DC to the Regional DCs and daily shipments from e...
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Lexicographic constraint
AnsweredI have coordinates (x,y) of size n. Here x ,y coordinates are decision variables I am trying strict lexicographical ordering (x1,y1) > lex (x2,y2) i.e. x1>x2 or if x1=x2 then y1>y2. This is logica...
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AddGenConstrIndicator coefficients are high
Awaiting user inputIn MPS file I am seeing coefficients of e+05. C55798(6) gen282 -1.1748062592941143e+05C55798(6) gen283 -1.1748062592941143e+05 C55873(6) gen282 -3.5745765630245427e+04C55873(6) gen2...
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Update Gurobi to a newer version throwing error
AnsweredEven I have Gurobi Lic 11.0.0 I am not able to upgrade and getting below errors
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Warning: max constraint violation (9.2015e-06) exceeds tolerance
AnsweredGurobi Optimizer version 9.5.0 build v9.5.0rc5 (win64)Gurobi Compute Server Worker version 9.5.0 build v9.5.0rc5 (win64)Thread count: 8 physical cores, 8 logical processors, using up to 8 threadsOp...
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Integer Solutions of Linear Programming Problems
AnsweredIdentifying cases where the solution to an LP problem happens to be integer-valued without explicitly formulating it as an Integer Linear Programming (ILP) problem. I understand that in some LP pro...
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Is best bound estimation always accurate as it is changing over time?
OngoingIs best bound estimation always accurate. below are my logs Since best bounds is changing over run time. Gurobi 9.5.0 (win64) logging started Sat Feb 24 23:07:18 2024Set parameter MIPGap to value ...
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Solver stopping criteria currently I am using MIPGAp and Time Limit and looking to add another stopping criteria
AnsweredMost of the scenarios are completing within 10 mins with MIP gap of 0.01, but only 2 scenarios are reaching the time limit. The two scenarios mostly follows similar graphs as shown below. I'm consi...
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Model logs shows Numerical Issues how to handle this
AnsweredThe model log tells, Consider reformulating model. Here how to find which part of the constraint I need to reformulate. Is there any way to see which constraints are causing this issue? Model con...
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In C# I am not able to find this attribute Model.printQuality() or Model.PrintQuality()
AnsweredI am not able to find the model.printQuality for C#