Oscar Dowson

[Nonlinear] detect common subexpressions

3

There is tooling in `MOI.Nonlinear.ReverseAD` to exploit common subexpressions, but we don't actively exploit this when parsing ScalarNonlinearFunction. I wonder if we could walk the tape somehow to detect and...

WIP: [Utilities] maintain order of variables in default_copy_to

2

This PR is an investigation of what we would need to implement to close #2493. It is still very rough around the edges; I need to clean it up and...

Order of columns during copy_to

1

@mlubin and I have been discussing the following example: ```julia julia> using JuMP julia> function main() model = Model() @variable(model, x) @variable(model, y >= 0) @objective(model, Min, x + y)...

Variational inequalities

13

An upcoming release of PATH will support polyhedral [variational inequalities](https://en.wikipedia.org/wiki/Variational_inequality). I don't have anything actionable to do yet, but I had a chat with Michael Ferris yesterday, so this issue...

Benchmarks and ideas

7

Hi there, Nice work. Because of https://github.com/odow/SDDP.jl, I'm always interested to see other SDDP implementations. Do you have any benchmark results on the different Lagrangian methods, or on the non-convex...

See https://github.com/joaquimg/BilevelJuMP.jl/blob/954467f72a93b3cd37b2846971dfbfd458019af8/src/moi_utilities.jl#L21-L70 x-ref https://github.com/jump-dev/MathOptInterface.jl/pull/2520

Improve matrix inequality support

1

Follow-up to #3766. In our discussion of https://github.com/jump-dev/JuMP.jl/pull/3766, we never really talked about the fact that `==` is not ambiguous.

Remove unnecessary calls to Base.eval

1

Closes https://github.com/lanl-ansi/Alpine.jl/issues/242 - [ ] Still need to test

Falsely declared support for MOI.Integer

1

This should be `false`: https://github.com/lanl-ansi/Alpine.jl/blob/a1849ddf464a9a567eeb9bb7c9707c77bbccbf88/src/MOI_wrapper/MOI_wrapper.jl#L325-L331 See https://github.com/jump-dev/MathOptInterface.jl/issues/2517