QPLIB

A Library of Quadratic Programming Instances

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

QPLIB_9008

Formats	gms lp mod qplib
Problem type ^probtype	DCL
Solution point objective value ^solobjvalue	-0.07472028 (gdx, sol)
Solution point infeasibility ^{solinfeasibility}	1.8363e-07
Donor ^donor	Nick Gould
#Variables ^nvars	1009306
#Binary Variables ^nbinvars	0
#Integer Variables ^nintvars	0
#Bounded non-binary Variables ^nboundedvars	19604
#Variables with only one bound ^{nsingleboundedvars}	0
#Nonlinear Variables ^nnlvars	19604
#Nonlinear Binary Variables ^nnlbinvars	0
#Nonlinear Integer Variables ^nnlintvars	0
Objective Sense ^objsense	min
Objective type ^objtype	quadratic
Objective curvature ^objcurvature	convex
#Negative eigenvalues in objective matrix ^{nobjquadnegev}
#Positive eigenvalues in objective matrix ^{nobjquadposev}	19604
#Nonzeros in Objective ^nobjnz	19604
#Nonlinear Nonzeros in Objective ^nobjnlnz	19604
#Quadratic Terms in Objective ^nobjquadnz	19604
#Square Terms in Objective ^{nobjquaddiagnz}	19604
#Constraints ^ncons	989604
#Linear Constraints ^nlincons	989604
#Quadratic Constraints ^nquadcons	0
#Diagonal Quadratic Constraints ^{ndiagquadcons}	0
Constraints curvature ^{conscurvature}	linear
#Convex Nonlinear Constraints ^{nconvexnlcons}	0
#Concave Nonlinear Constraints ^{nconcavenlcons}	0
#Indefinite Nonlinear Constraints ^{nindefinitenlcons}	0
#Nonzeros in Jacobian ^njacobiannz	9634086
#Nonlinear Nonzeros in Jacobian ^{njacobiannlnz}	0
#Nonzeros in (Upper-Left) Hessian of Lagrangian ^{nlaghessiannz}	19604
#Nonzeros in Diagonal of Hessian of Lagrangian ^{nlaghessiandiagnz}	19604
#Blocks in Hessian of Lagrangian ^{nlaghessianblocks}	19604
Minimal blocksize in Hessian of Lagrangian ^{laghessianminblocksize}	1
Maximal blocksize in Hessian of Lagrangian ^{laghessianmaxblocksize}	1
Average blocksize in Hessian of Lagrangian ^{laghessianavgblocksize}	1.0