QPLIB

A Library of Quadratic Programming Instances

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QPLIB_3496

Formats	gms lp mod qplib
Problem type ^probtype	LGQ
Solution point objective value ^solobjvalue	191.72954810 (gdx, sol)
Solution point infeasibility ^{solinfeasibility}	4.5475e-13
Donor ^donor	Stefan Vigerske
#Variables ^nvars	328
#Binary Variables ^nbinvars	200
#Integer Variables ^nintvars	56
#Bounded non-binary Variables ^nboundedvars	56
#Variables with only one bound ^{nsingleboundedvars}	8
#Nonlinear Variables ^nnlvars	208
#Nonlinear Binary Variables ^nnlbinvars	144
#Nonlinear Integer Variables ^nnlintvars	56
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	32
#Nonlinear Nonzeros in Objective ^nobjnlnz	0
#Quadratic Terms in Objective ^nobjquadnz	0
#Square Terms in Objective ^{nobjquaddiagnz}	0
#Constraints ^ncons	687
#Linear Constraints ^nlincons	623
#Quadratic Constraints ^nquadcons	64
#Diagonal Quadratic Constraints ^{ndiagquadcons}	0
Constraints curvature ^{conscurvature}	indefinite
#Convex Nonlinear Constraints ^{nconvexnlcons}	0
#Concave Nonlinear Constraints ^{nconcavenlcons}	0
#Indefinite Nonlinear Constraints ^{nindefinitenlcons}	64
#Nonzeros in Jacobian ^njacobiannz	3947
#Nonlinear Nonzeros in Jacobian ^{njacobiannlnz}	678
#Nonzeros in (Upper-Left) Hessian of Lagrangian ^{nlaghessiannz}	400
#Nonzeros in Diagonal of Hessian of Lagrangian ^{nlaghessiandiagnz}	0
#Blocks in Hessian of Lagrangian ^{nlaghessianblocks}	8
Minimal blocksize in Hessian of Lagrangian ^{laghessianminblocksize}	26
Maximal blocksize in Hessian of Lagrangian ^{laghessianmaxblocksize}	26
Average blocksize in Hessian of Lagrangian ^{laghessianavgblocksize}	26.0
Sparsity Jacobian
Sparsity Lag. Hessian