QPLIB

A Library of Quadratic Programming Instances

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

QPLIB_0688

Formats	gms lp mod qplib
Problem type ^probtype	LMQ
Donor ^donor	Maria Saumell
#Variables ^nvars	5788
#Binary Variables ^nbinvars	1964
#Integer Variables ^nintvars	0
#Bounded non-binary Variables ^nboundedvars	3128
#Variables with only one bound ^{nsingleboundedvars}	0
#Nonlinear Variables ^nnlvars	3128
#Nonlinear Binary Variables ^nnlbinvars	0
#Nonlinear Integer Variables ^nnlintvars	0
Objective Sense ^objsense	max
Objective type ^objtype	linear
Objective curvature ^objcurvature	linear
#Negative eigenvalues in objective matrix ^{nobjquadnegev}
#Positive eigenvalues in objective matrix ^{nobjquadposev}
#Nonzeros in Objective ^nobjnz	3552
#Nonlinear Nonzeros in Objective ^nobjnlnz	0
#Quadratic Terms in Objective ^nobjquadnz	0
#Square Terms in Objective ^{nobjquaddiagnz}	0
#Constraints ^ncons	22168
#Linear Constraints ^nlincons	20568
#Quadratic Constraints ^nquadcons	1600
#Diagonal Quadratic Constraints ^{ndiagquadcons}	0
Constraints curvature ^{conscurvature}	indefinite
#Convex Nonlinear Constraints ^{nconvexnlcons}	0
#Concave Nonlinear Constraints ^{nconcavenlcons}	0
#Indefinite Nonlinear Constraints ^{nindefinitenlcons}	1600
#Nonzeros in Jacobian ^njacobiannz	92143
#Nonlinear Nonzeros in Jacobian ^{njacobiannlnz}	41200
#Nonzeros in (Upper-Left) Hessian of Lagrangian ^{nlaghessiannz}	30560
#Nonzeros in Diagonal of Hessian of Lagrangian ^{nlaghessiandiagnz}	0
#Blocks in Hessian of Lagrangian ^{nlaghessianblocks}	160
Minimal blocksize in Hessian of Lagrangian ^{laghessianminblocksize}	11
Maximal blocksize in Hessian of Lagrangian ^{laghessianmaxblocksize}	20
Average blocksize in Hessian of Lagrangian ^{laghessianavgblocksize}	19.55
Sparsity Jacobian
Sparsity Lag. Hessian