Optimization (Mathematical)

Topic	Replies	Views	Activity
ANN: JuMP-dev 2026 Dear all, We are pleased to announce that JuMP-dev 2026 will take place in Edinburgh, Scotland on May 31 and June 1st (just before SIAM OP26). More details here: JuMP-dev 2026 \| JuMP Cheers, Oscar	1	115	October 29, 2025
About the Optimization (Mathematical) category	2	3617	July 4, 2019
HiGHS instance and model when used in a shared library jump , highs , mathoptinterface	6	176	November 23, 2025
Efficient way to implement multi-index nonlinear constraints in ExaModels? (PCE-expanded AC power flow) question , jump , autodiff	3	69	November 23, 2025
DiffOpt / JuMP: zero gradient for variable fixed by equality constraint jump , flux , chainrulescore , diffopt	3	77	November 23, 2025
AssertionError in Gurobi.jl with OptimalityTarget = 1 on simple nonlinear model (Gurobi 13)	4	71	November 23, 2025
Arbitrary/High-precision optimisation of NLP optimization	10	175	November 20, 2025
The Uno (Unifying Nonconvex Optimization) solver nonlinear-optimizati , nonconvex-optimizati , nonlinear-programmin , sqp	51	3191	November 19, 2025
CasADiNLPModels.jl: an interface for CasADi via loading code generated functions package , autodiff , modelling	1	86	November 19, 2025
`Initial guess is not an interior point` in optimization methods optimization	10	213	November 12, 2025
The output of Gurobi's solution isn't qualified as its own input in terms of feasibility gurobi	8	73	November 11, 2025
Mixed integer problem question	17	326	November 10, 2025
Banded Jacobian of the constraints jump , mathoptinterface	4	80	November 10, 2025
Help refining an MINLP and selecting an optimiser to make solving faster / possible question , jump	4	94	November 10, 2025
Gurobi fails to invoke the primal simplex method when doing column generation? jump , gurobi	13	139	November 9, 2025
Don't understand the results of cuOpt cuopt	2	107	November 6, 2025
How to reinit NonlinearSolve.jl problem/integrator? nonlinearsolve	5	396	November 5, 2025
Getting an infeasibility certificate from Gurobi when solving hard LPs gurobi	6	112	November 5, 2025
Trouble using ParametricOptInterface when a parameter appears inside a min() expression in JuMP question , jump , parameters	2	41	November 4, 2025
Computing Hessian of the Langrangian efficiently with DI.jl optimization , autodiff	15	324	November 4, 2025
Minimization of degenerate eigenvalue of sparse matrix	12	207	November 4, 2025
Can't get the example dualization to work question	5	210	November 4, 2025
Solving Projection onto Linear Equality for Multiple Input Vectors linearalgebra , convex-optimization , projection	11	183	October 31, 2025
Optimization with AD of complex struct-based architecture forwarddiff	3	137	October 27, 2025
Julia crashes without reporting anything when I optimize a vector of models in parallel question , jump , parallel	22	417	October 25, 2025
Efficiently Retrieving Variable Values after Gurobi optimization with JuMP gurobi	29	541	October 23, 2025
Help reformulating nonlinear problem	2	114	October 22, 2025
HiGHS solver >100x slower than Gurobi with bilinear big-m relaxation jump	3	917	October 22, 2025
Negative loss when doing parameter estimation of ODEs question	7	181	October 22, 2025
JuMP reports an error when attempting to sum the empty DenseAxisArray as the objective function jump	7	74	October 22, 2025

ANN: JuMP-dev 2026

Dear all, We are pleased to announce that JuMP-dev 2026 will take place in Edinburgh, Scotland on May 31 and June 1st (just before SIAM OP26). More details here: JuMP-dev 2026 | JuMP Cheers, Oscar