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The time to explore nodes fluctuates using different number of threads



1 comment

  • Jaromił Najman
    Gurobi Staff Gurobi Staff

    Is it because "For MIPs that are solved at or near the root node, more threads generally will not help much."? 

    Yes, this can be one reason. Another reason for the time fluctuation is that changing the number of Threads used to solve a problem is not deterministic, cf. Is Gurobi Optimizer deterministic? Any change to a parameter (including the number of threads) can change the solution path significantly and result in different performance. This is known as Performance Variability.

    Best regards, 


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