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chkwon / PATHSolver.jl

provides a Julia wrapper for the PATH Solver for solving mixed complementarity problems
http://pages.cs.wisc.edu/%7Eferris/path.html
MIT License
50 stars 15 forks source link

Global state? #71

Closed lassepe closed 1 year ago

lassepe commented 1 year ago

During my hunt for #70 I noticed some weird behavior which looks to me like PATH has some global state either in C or in Julia. Specifically, the #70 only showed up if I solve another specific MCP before it. I suspect that some solver object is not fully reset leading to this interdependence between solves. I'm calling the solver through the MCP C-api so I wouldn't expect any side-effects between calls as I'm not carrying over any solver object. This issue is part of the reason why I cannot give a compact reproducer for #70 -- it only shows up if I run my research code in a specific sequence.

odow commented 1 year ago

Closing in favor of #70. We don't need two issues to track this.