Minimum RAM needed

Answered

Rayan SAAD

June 29, 2023 18:55

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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 to 80 and from 5 slots to 250), I get a memory error,
I want to know how much RAM I'll need to run the model, to see if I subscribe to Google colab pro +.
To get an idea, I'll show you the different model parameters and the target function 

 

Thank you !

Related to

• Memory

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  David Torres Sanchez

  • Gurobi Staff

  June 30, 2023 11:56

  Hi,

  I am not sure how much RAM is needed.
  The smallest memory profile (also fastest) uses the matrix API:

  with gp.Model() as m:
      R = m.addMVar(shape=(I, J, T, E, C), name="R")
      result_1 = R.sum() * 2

  Cheers, 
  David

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  Riley Clement

  • Gurobi Staff

  June 30, 2023 12:57

  This isn't answering your question but perhaps NodefileStart parameter or reducing Threads could help avoid the memory error, at the expense of a slower solve.

  https://www.gurobi.com/documentation/current/refman/nodefilestart.html

  https://www.gurobi.com/documentation/current/refman/threads.html

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