QPLIB

A Library of Quadratic Programming Instances

Home // browse instances // view statistics // read documentation // download QPLIB archive

QPLIB_1423

Formats gms lp mod qplib
Problem type probtype QCQ
Solution point objective value solobjvalue -14.96746772 (gdx, sol)
Solution point infeasibility solinfeasibility 5.2917e-11
Donor donor Nick Sahinidis
#Variables nvars 40
#Binary Variables nbinvars 0
#Integer Variables nintvars 0
#Bounded non-binary Variables nboundedvars 40
#Variables with only one bound nsingleboundedvars 0
#Nonlinear Variables nnlvars 40
#Nonlinear Binary Variables nnlbinvars 0
#Nonlinear Integer Variables nnlintvars 0
Objective Sense objsense min
Objective type objtype quadratic
Objective curvature objcurvature indefinite
#Negative eigenvalues in objective matrix nobjquadnegev 30
#Positive eigenvalues in objective matrix nobjquadposev 10
#Nonzeros in Objective nobjnz 40
#Nonlinear Nonzeros in Objective nobjnlnz 40
#Quadratic Terms in Objective nobjquadnz 782
#Square Terms in Objective nobjquaddiagnz 38
#Constraints ncons 24
#Linear Constraints nlincons 4
#Quadratic Constraints nquadcons 20
#Diagonal Quadratic Constraints ndiagquadcons 0
Constraints curvature conscurvature indefinite
#Convex Nonlinear Constraints nconvexnlcons 0
#Concave Nonlinear Constraints nconcavenlcons 0
#Indefinite Nonlinear Constraints nindefinitenlcons 20
#Nonzeros in Jacobian njacobiannz 960
#Nonlinear Nonzeros in Jacobian njacobiannlnz 800
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 1600
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 40
#Blocks in Hessian of Lagrangian nlaghessianblocks 1
Minimal blocksize in Hessian of Lagrangian laghessianminblocksize 40
Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize 40
Average blocksize in Hessian of Lagrangian laghessianavgblocksize 40.0
Sparsity Jacobian
Sparsity Lag. Hessian




Website © 2017-2023 by Zuse Institute Berlin and GAMS. All rights reserved. Imprint. QPLIB is licensed under CC-BY 4.0.