QPLIB

A Library of Quadratic Programming Instances

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QPLIB_8758

Formats	gms lp mod qplib
Problem type ^probtype	QCQ
Solution point objective value ^solobjvalue	-41.87500005 (gdx, sol)
Solution point infeasibility ^{solinfeasibility}	2.7212e-10
Donor ^donor	Nick Gould
#Variables ^nvars	2070
#Binary Variables ^nbinvars	0
#Integer Variables ^nintvars	0
#Bounded non-binary Variables ^nboundedvars	0
#Variables with only one bound ^{nsingleboundedvars}	0
#Nonlinear Variables ^nnlvars	2070
#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}	90
#Positive eigenvalues in objective matrix ^{nobjquadposev}	1980
#Nonzeros in Objective ^nobjnz	2070
#Nonlinear Nonzeros in Objective ^nobjnlnz	2070
#Quadratic Terms in Objective ^nobjquadnz	1070190
#Square Terms in Objective ^{nobjquaddiagnz}	0
#Constraints ^ncons	1981
#Linear Constraints ^nlincons	0
#Quadratic Constraints ^nquadcons	1981
#Diagonal Quadratic Constraints ^{ndiagquadcons}	1
Constraints curvature ^{conscurvature}	indefinite
#Convex Nonlinear Constraints ^{nconvexnlcons}	0
#Concave Nonlinear Constraints ^{nconcavenlcons}	0
#Indefinite Nonlinear Constraints ^{nindefinitenlcons}	1981
#Nonzeros in Jacobian ^njacobiannz	9990
#Nonlinear Nonzeros in Jacobian ^{njacobiannlnz}	9990
#Nonzeros in (Upper-Left) Hessian of Lagrangian ^{nlaghessiannz}	2142450
#Nonzeros in Diagonal of Hessian of Lagrangian ^{nlaghessiandiagnz}	2070
#Blocks in Hessian of Lagrangian ^{nlaghessianblocks}	2
Minimal blocksize in Hessian of Lagrangian ^{laghessianminblocksize}	1035
Maximal blocksize in Hessian of Lagrangian ^{laghessianmaxblocksize}	1035
Average blocksize in Hessian of Lagrangian ^{laghessianavgblocksize}	1035.0
Sparsity Jacobian
Sparsity Lag. Hessian