[Coin-discuss] Structural comparison of MPS files?

[acw at ascent.com]

I could use a tool that takes two MPS files and compares them 
structurally. Specifically, it should not be "mazed" by mere name and 
order changes of rows and columns -- it should be able to recognize two 
isomorphic problems, and it would be wonderful if it could recognize 
only-mostly-isomorphic problems as well. It should give name changes and 
structural differences.

I realize that in general, this is computationally hard, similar to graph 
isomorphism. But I'm wondering if any such tools exist. I could even 
imagine something with a user interface that lets the user provide 
guidance -- "Oh, mark these two constraints as the same" and the like.

What's out there?
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