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A Library of Quadratic Programming Instances

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QPLIB_1507

Formats gms lp mod qplib
Problem type probtype QCQ
Solution point objective value solobjvalue -8.30137697 (gdx, sol)
Solution point infeasibility solinfeasibility 3.8858e-16
Donor donor Nick Sahinidis
#Variables nvars 30
#Binary Variables nbinvars 0
#Integer Variables nintvars 0
#Bounded non-binary Variables nboundedvars 30
#Variables with only one bound nsingleboundedvars 0
#Nonlinear Variables nnlvars 30
#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 8
#Positive eigenvalues in objective matrix nobjquadposev 22
#Nonzeros in Objective nobjnz 30
#Nonlinear Nonzeros in Objective nobjnlnz 30
#Quadratic Terms in Objective nobjquadnz 446
#Square Terms in Objective nobjquaddiagnz 30
#Constraints ncons 33
#Linear Constraints nlincons 3
#Quadratic Constraints nquadcons 30
#Diagonal Quadratic Constraints ndiagquadcons 0
Constraints curvature conscurvature indefinite
#Convex Nonlinear Constraints nconvexnlcons 0
#Concave Nonlinear Constraints nconcavenlcons 0
#Indefinite Nonlinear Constraints nindefinitenlcons 30
#Nonzeros in Jacobian njacobiannz 990
#Nonlinear Nonzeros in Jacobian njacobiannlnz 900
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 900
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 30
#Blocks in Hessian of Lagrangian nlaghessianblocks 1
Minimal blocksize in Hessian of Lagrangian laghessianminblocksize 30
Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize 30
Average blocksize in Hessian of Lagrangian laghessianavgblocksize 30.0
Sparsity Jacobian
Sparsity Lag. Hessian




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