Rayan SAAD

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Activity overview

Latest activity by Rayan SAAD
  • Rayan SAAD created a post,

    Constraint expression

    Answered

    Helloo, I have a probleme and i would like some help, i want to establish different constraint for my variable S[i,c,j,t] depending on j, So i defined different J like this : J1=range(6,11)J21=rang...

  • Rayan SAAD commented,

    I also tried you recommondation and it give me an objectif function that equals 1, i really dont understand 

  • Rayan SAAD commented,

    Good Morning Chung-Kyun, I think i found where my probleme is : I defined thode constraint for my variable S[i,c,j,t]  thes sets are: I=49J=211T=3K=27E=7C=3J1=range(151,211)J21=range(48,49)J22=ran...

  • Rayan SAAD commented,

    Hello Chung-Kyun, Thank you for your response,  I'll try to clarify my problem,My model is an allocation model for the quantity of products in différent locations ( storage location), so from one p...

  • Rayan SAAD commented,

    Hello, the solution is wrong because thé constraint are not verified, And of course i can send you My code just give me where Also, the modele was ruuning correctly but When i added more constrain...

  • Rayan SAAD created a post,

    Modèle solved with a 0 Objective function

    Ongoing

    Hello, i have a problem and i would like some help, The résolution of mu model comes with a 0 objectife function like you can see, So i dont know how is it possible, and what does it mean  Thanks a...

  • Rayan SAAD created a post,

    Constraint with for loop

    Answered

    Hello, I have a lillte probleme and would appreciate your help, I created a variable X[i,j] I want to add constraints on X dependently of i, for example if i equal to 2,3,4 i have a constraint  and...

  • Rayan SAAD created a post,

    Minimum RAM needed

    Answered

    Hello, i have a problem and i would appreciate your Help, I've built a fairly heavy optimization model, tested it on simple problems and it works,But when I put in the real data (go from 5 products...

  • Rayan SAAD created a post,

    TimeLimit

    Awaiting user input

    Hello,  i set a time limit of 5 minutes  for my modèle, but when the 3 minutes are over, i still dont have the solution, Thank you 

  • Rayan SAAD commented,

    Hello Simrane, I want to express the same constraint, but this time i have 4 index for my 2 variables : h[i,c,j,t] and u[i,c,j,t] if for a given i and c : u[i,c,j,t]=1 then for all other i, and c :...