frapac

using MathOptInterface
using MathOptFormat
using Dualization

const MOI  = MathOptInterface
const MOIU = MathOptInterface.Utilities
const MOF  = MathOptFormat

# Mock model
MOIU.@model(TestModel,

frapac

abstract type AbstractLinearSolver end

"""
    introduce(solver::AbstractLinearSolver)

Print the name of the linear system.
"""
function introduce end

frapac

abstract type AbstractKKTSystem end

"Assemble KKT matrix."
function compress! end

"Factorize KKT matrix with given linear solver."
function factorize! end

"Solve KKT system `Wx = b` with given linear solver."

frapac

using BenchmarkTools
using CUTEst
using MadNLP

name = "OPTMASS"
nlp = CUTEst.CUTEstModel(name)
solver = MadNLP.MadNLPSolver(nlp)