QPLIB

A Library of Quadratic Programming Instances

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QPLIB_6647

Formats gms lp mod qplib
Problem type probtype QBL
Solution point objective value solobjvalue 2.00000000 (gdx, sol)
Solution point infeasibility solinfeasibility 0.0000e+00
Donor donor Thomas Schiex
#Variables nvars 627
#Binary Variables nbinvars 627
#Integer Variables nintvars 0
#Bounded non-binary Variables nboundedvars 0
#Variables with only one bound nsingleboundedvars 0
#Nonlinear Variables nnlvars 627
#Nonlinear Binary Variables nnlbinvars 627
#Nonlinear Integer Variables nnlintvars 0
Objective Sense objsense min
Objective type objtype quadratic
Objective curvature objcurvature indefinite
#Negative eigenvalues in objective matrix nobjquadnegev 439
#Positive eigenvalues in objective matrix nobjquadposev 188
#Nonzeros in Objective nobjnz 627
#Nonlinear Nonzeros in Objective nobjnlnz 627
#Quadratic Terms in Objective nobjquadnz 14196
#Square Terms in Objective nobjquaddiagnz 0
#Constraints ncons 33
#Linear Constraints nlincons 33
#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 627
#Nonlinear Nonzeros in Jacobian njacobiannlnz 0
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 28392
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 0
#Blocks in Hessian of Lagrangian nlaghessianblocks 1
Minimal blocksize in Hessian of Lagrangian laghessianminblocksize 627
Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize 627
Average blocksize in Hessian of Lagrangian laghessianavgblocksize 627.0
Sparsity Jacobian
Sparsity Lag. Hessian




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