Sudheer Reddy

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Activity overview

Latest activity by Sudheer Reddy
  • Sudheer Reddy commented,

    Below is the problem statement I am looking to solve Customer Assignment: Determine which customers are served from which locations. Delivery Days: Schedule specific delivery days for each custo...

  • Sudheer Reddy created a post,

    How to identify best approach to solve the problem

    Answered

    Given 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...

  • Sudheer Reddy created a post,

    Lexicographic constraint

    Answered

    I 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...

  • Sudheer Reddy created a post,

    AddGenConstrIndicator coefficients are high

    Awaiting user input

    In 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...

  • Sudheer Reddy created a post,

    Update Gurobi to a newer version throwing error

    Answered

    Even I have Gurobi Lic 11.0.0 I am  not able to upgrade and getting below errors 

  • Sudheer Reddy created a post,

    Warning: max constraint violation (9.2015e-06) exceeds tolerance

    Answered

    Gurobi 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...

  • Sudheer Reddy created a post,

    Integer Solutions of Linear Programming Problems

    Answered

    Identifying 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...

  • Sudheer Reddy commented,

    Regarding Improvement of Best Bound and MIPGap: In the initial logs before invoking the Gurobi callback, I noticed a trend where the best bound steadily improves over time, and simultaneously, th...

  • Sudheer Reddy commented,

    How to conclude my best bound is not accurate. Is that possible by log values which I have shared

  • Sudheer Reddy created a post,

    Is best bound estimation always accurate as it is changing over time?

    Ongoing

    Is 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 ...