how to set the memory parameter in a Gurobi model using c++?

回答済み

Igor Melo

2023年05月11日 16:42 編集済み

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I'm trying to set a memory limit to my Gurobi Model.

GRBEnv env = GRBEnv(true);
env.set("LogFile", "Model_DEBUG.log");
env.start();
GRBModel model = GRBModel(env);
model.getEnv().set(GRB_DoubleParam_MemLimit, 8);

But, this doesn't work. How could I set this parameter?

I'm trying to set 8Gb of ram to my gurobi model, considering the c++ language

関連

• C++
• Memory
• Parameters

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• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2026年11月13日 01:43

  This post is more than two years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum, or try Gurobot, our chatbot interface offering instant, expert-level support.
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  Elisabeth Rodríguez Heck

  • Gurobi Staff

  2023年05月12日 10:40

  Hi Igor,

  Which Gurobi version are you using? In version 9.5 the MemLimit parameter had to be set before starting the environment. If you are using 9.5, your code should be replaced by

  GRBEnv env = GRBEnv(true);
  env.set("LogFile", "Model_DEBUG.log");
  env.set("MemLimit", 8);
  env.start();
  GRBModel model = GRBModel(env);

  But starting from version 10.0 your original snippet should work.

  Elisabeth

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  Igor Melo

  2023年05月12日 15:44

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  Thank you very much, I'll try this way

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