MathOptInterface.jl
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jump-dev
A data structure for mathematical optimization problems
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...
@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)...
I recently wrote a JuMP model which I exported to CBF and solved using a solver that doesn't have a JuMP interface. I was reviewing the file to make sense...
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...
From this simple example: ```julia using JuMP using HiGHS using Profile using PProf function add_var() model = direct_model(HiGHS.Optimizer()) @variable(model, 1
I got the following error on a large .lp file (140K rows). The longest line has 5.2MM characters (very long constraint). I suspect the issue is with this line when...
This is useful in constraint programming where you often have a set that is a special case of another one. One example is CBLS.jl that has sets with a few...
I am working on adding support for `MOI.ScalarNonlinearFunction` to EAGO and I am running into a particular error with some tests. I cannot provide a MWE since I have not...
As discussed with @mlubin during JuMP-dev 2024, we recently observed with Guillaume Dalle (@gdalle) that JuMP detects additional non-zeros on the diagonal of the Hessian than what is needed. We...
@amontoison observed that we could use forward mode for the jacobian and jacobian-vector products when the number of variables is less than the number of rows to get better performance...
