QPLIB

A Library of Quadratic Programming Instances

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QPLIB_2416

Formats	gms lp mod qplib
Problem type ^probtype	LCQ
Solution point objective value ^solobjvalue	9.98870688 (gdx, sol)
Solution point infeasibility ^{solinfeasibility}	1.7764e-15
Donor ^donor	Ruth Misener
#Variables ^nvars	25
#Binary Variables ^nbinvars	0
#Integer Variables ^nintvars	0
#Bounded non-binary Variables ^nboundedvars	24
#Variables with only one bound ^{nsingleboundedvars}	0
#Nonlinear Variables ^nnlvars	24
#Nonlinear Binary Variables ^nnlbinvars	0
#Nonlinear Integer Variables ^nnlintvars	0
Objective Sense ^objsense	min
Objective type ^objtype	linear
Objective curvature ^objcurvature	linear
#Negative eigenvalues in objective matrix ^{nobjquadnegev}
#Positive eigenvalues in objective matrix ^{nobjquadposev}
#Nonzeros in Objective ^nobjnz	1
#Nonlinear Nonzeros in Objective ^nobjnlnz	0
#Quadratic Terms in Objective ^nobjquadnz	0
#Square Terms in Objective ^{nobjquaddiagnz}	0
#Constraints ^ncons	686
#Linear Constraints ^nlincons	153
#Quadratic Constraints ^nquadcons	533
#Diagonal Quadratic Constraints ^{ndiagquadcons}	18
Constraints curvature ^{conscurvature}	indefinite
#Convex Nonlinear Constraints ^{nconvexnlcons}	6
#Concave Nonlinear Constraints ^{nconcavenlcons}	41
#Indefinite Nonlinear Constraints ^{nindefinitenlcons}	486
#Nonzeros in Jacobian ^njacobiannz	3757
#Nonlinear Nonzeros in Jacobian ^{njacobiannlnz}	3336
#Nonzeros in (Upper-Left) Hessian of Lagrangian ^{nlaghessiannz}	492
#Nonzeros in Diagonal of Hessian of Lagrangian ^{nlaghessiandiagnz}	24
#Blocks in Hessian of Lagrangian ^{nlaghessianblocks}	1
Minimal blocksize in Hessian of Lagrangian ^{laghessianminblocksize}	24
Maximal blocksize in Hessian of Lagrangian ^{laghessianmaxblocksize}	24
Average blocksize in Hessian of Lagrangian ^{laghessianavgblocksize}	24.0
Sparsity Jacobian
Sparsity Lag. Hessian