QPLIB

A Library of Quadratic Programming Instances

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QPLIB_1931

Formats gms lp mod qplib
Problem type probtype QCQ
Solution point objective value solobjvalue -55.70887522 (gdx, sol)
Solution point infeasibility solinfeasibility 5.1016e-10
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 20
#Positive eigenvalues in objective matrix nobjquadposev 20
#Nonzeros in Objective nobjnz 40
#Nonlinear Nonzeros in Objective nobjnlnz 40
#Quadratic Terms in Objective nobjquadnz 399
#Square Terms in Objective nobjquaddiagnz 0
#Constraints ncons 40
#Linear Constraints nlincons 0
#Quadratic Constraints nquadcons 40
#Diagonal Quadratic Constraints ndiagquadcons 0
Constraints curvature conscurvature indefinite
#Convex Nonlinear Constraints nconvexnlcons 0
#Concave Nonlinear Constraints nconcavenlcons 0
#Indefinite Nonlinear Constraints nindefinitenlcons 40
#Nonzeros in Jacobian njacobiannz 1600
#Nonlinear Nonzeros in Jacobian njacobiannlnz 1600
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 800
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 0
#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

QPLIB_1931.gms



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