HSL ma27
To solve a sparse symmetric system of linear equations.
Visit HSL ma27 ↗- Type
- Audience
Related resources
- GurobiSolverGurobi Optimizer is a prescriptive analytics platform and a decision-making technology developed by Gurobi Optimization, LLC. The Gurobi Optimizer (often referred to as simply, “Gurobi”) is a solver, since it uses mathematical optimization to calculate the answer to a problem.
- CPLEXSolverThe IBM ILOG CPLEX Optimizer solves integer programming problems, very large[3] linear programming problems using either primal or dual variants of the simplex method or the barrier interior point method, convex and non-convex quadratic programming problems, and convex quadratically constrained problems (solved via second-order cone programming, or SOCP).
- Optimizing with Column GenerationBookAn interesting book about Column Generation to tackle large-scale optimization problems
- Land-Doig CompetitionChallengeThe 2026 Land-Doig MIP Competition is a computational competition hosted by the 2026 Mixed Integer Programming Workshop, offering an opportunity for teams to showcase their practical and computational prowess and fostering innovation in computational MIP. It is named in honor of Ailsa H. Land and Alison G. Harcourt (née Doig), who proposed the first LP-based branch-and-bound algorithm.
- Marco LübbeckeContent creatorProfessor of operations research at RWTH Aachen University.
- Optimization via Relaxation and DecompositionBookThis book offers an up-to-date description of relaxation/approximation and decomposition techniques, demonstrating how their combined use efficiently solves large-scale optimization problems relevant to engineering, particularly in electrical, and industrial engineering, with a focus on energy.