During our work, we have collected and/or developed several suites of test instances for different optimization problems. They are released in the public domain, so as to be freely available to the scientific community and practitioners interested in the development of computationally effective algorithms for the corresponding optimization problems.
If feel you have something to add, either instances/generators or links to other interesting sites, please contact us.
For some of these problems we also distribute solvers; please check our Software page.
Home Care problems.
Multicommodity Min Cost Flow problems.
Single-commodity Min Cost Flow problems.