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Open-Sourcing Rebalancer: A Generic, High-Performance Library for Solving Assignment Problems
Fb.com·September 21, 2026·1 min read

AI Summary
We’re open-sourcing Rebalancer, the assignment-problem solver that has been used to solve resource allocation problems throughout Meta for over nine years.
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We’re open-sourcing Rebalancer, the assignment-problem solver that has been used to solve resource allocation problems throughout Meta for over nine years. Rebalancer separates several related concerns: how to specify an assignment problem, how to store it ef…
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