QPLIB

A Library of Quadratic Programming Instances

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QPLIB_3931

Formats gms lp mod qplib
Problem type probtype QBL
Solution point objective value solobjvalue 79.93000000 (gdx, sol)
Solution point infeasibility solinfeasibility 0.0000e+00
Donor donor Andrea Lodi
#Variables nvars 316
#Binary Variables nbinvars 316
#Integer Variables nintvars 0
#Bounded non-binary Variables nboundedvars 0
#Variables with only one bound nsingleboundedvars 0
#Nonlinear Variables nnlvars 237
#Nonlinear Binary Variables nnlbinvars 237
#Nonlinear Integer Variables nnlintvars 0
Objective Sense objsense min
Objective type objtype quadratic
Objective curvature objcurvature indefinite
#Negative eigenvalues in objective matrix nobjquadnegev 159
#Positive eigenvalues in objective matrix nobjquadposev 78
#Nonzeros in Objective nobjnz 237
#Nonlinear Nonzeros in Objective nobjnlnz 237
#Quadratic Terms in Objective nobjquadnz 2241
#Square Terms in Objective nobjquaddiagnz 0
#Constraints ncons 80
#Linear Constraints nlincons 80
#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 395
#Nonlinear Nonzeros in Jacobian njacobiannlnz 0
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 4482
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 0
#Blocks in Hessian of Lagrangian nlaghessianblocks 2
Minimal blocksize in Hessian of Lagrangian laghessianminblocksize 39
Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize 198
Average blocksize in Hessian of Lagrangian laghessianavgblocksize 118.5
Sparsity Jacobian
Sparsity Lag. Hessian




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