Thomas Leveringhaus
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Thomas Leveringhausさんがコメントを作成しました:
PS: I I would like to add that I set NoRelHeurTime = 36000 s. Therefore, the time limit will not be the reason for the program termination.
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił, I did some testing ...I tried the partition heuristic (although I didn't expect a solution to my general memory problem, but I want to explore general properties ...). Here is the log: ...
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił Najman, thanks for your reply. Yes, decomposition is an option. I already have two ideas for grouping the variables reasonably. I suppose the partition heuristic with PartitionPlace incl...
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił Najman, I would like to come back to my problems here. I reformulated my problem (among other approaches with your help in the topic: https://support.gurobi.com/hc/en-us/community/posts/...
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił Najman, thanks for your explanations. I did intensive testing with the parameters, but in the end it was necessary to perform the reductions manually. And I had to set AggFill to zero (s...
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił, I would like to take up this topic here. I looked into section 5.3 of the specified paper and in my applications I have a lot of constraints that fit into the scheme [s * A_qS = A_rS] f...
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił, thanks for your reply.I already assumed that GRBaddconstr() isn't thread-safe.But as you said, that's not really a problem because I can create the arguments for the function call in pa...
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Thomas Leveringhausさんが投稿を作成しました:
GRBaddconstr (or other) permissible inside of #pragma omp parallel for in C?
回答済みDear Gurobi-Team, is it permissible to add constraints (or anything else) to a model from the inside of a parallel for loop, like in the following (artificial) example in C? int ind[num_variants...
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Thomas Leveringhausさんがコメントを作成しました:
Hi Jaromił, thanks again for your continuous support. I am in a(nother) testing phase of my work and it is not an actual problem to reduce the problem size for examples.I already reduced the size b...
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Thomas Leveringhausさんが投稿を作成しました:
"Error: converted symmetric Q matrix has more than two billion nonzeros" despite bilinear terms with binaries
回答済みDear Gurobi-Team, First of all, I would like to show an excerpt from the solver log: Set parameter IntFeasTol to value 1e-06Set parameter Method to value 0Set parameter ConcurrentMethod to value 3S...