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Change the default behavior to using CBC, as it should always work?

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#329 0 comments 2 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
tooling

Research direction

No files, tests, or entry points are identified in the issue. Start by locating the default solver-selection path, then verify that CBC is chosen without an installed Gurobi license and that repeated tiny-model runs no longer incur the Gurobi fallback delay.

Written by the indexing model from the issue text.

Description

mip
  Would it be an idea to change the default behavior to using CBC, as it should always work?

Even if Gurobi is not installed (or no license is found) the default code path tries Gurobi first, which takes some time. When done repeatedly (eg in automated tests of tiny models) this can be significant.

Originally posted by @rschwarz in https://github.com/coin-or/python-mip/discussions/313#discussioncomment-4537492

Dominant language
Linear Programming
Stars
602
Forks
108
Avg merge
1d 22m
Merged PRs (30d)
1

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