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A Library of Quadratic Programming Instances

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QPLIB_2505

Formats gms lp mod qplib
Problem type probtype LCQ
Solution point objective value solobjvalue 1564.95798300 (gdx, sol)
Solution point infeasibility solinfeasibility 1.8190e-12
Donor donor Ruth Misener
#Variables nvars 1039
#Binary Variables nbinvars 0
#Integer Variables nintvars 0
#Bounded non-binary Variables nboundedvars 270
#Variables with only one bound nsingleboundedvars 0
#Nonlinear Variables nnlvars 270
#Nonlinear Binary Variables nnlbinvars 0
#Nonlinear Integer Variables nnlintvars 0
Objective Sense objsense min
Objective type objtype linear
Objective curvature objcurvature linear
#Negative eigenvalues in objective matrix nobjquadnegev  
#Positive eigenvalues in objective matrix nobjquadposev  
#Nonzeros in Objective nobjnz 15
#Nonlinear Nonzeros in Objective nobjnlnz 0
#Quadratic Terms in Objective nobjquadnz 0
#Square Terms in Objective nobjquaddiagnz 0
#Constraints ncons 782
#Linear Constraints nlincons 302
#Quadratic Constraints nquadcons 480
#Diagonal Quadratic Constraints ndiagquadcons 0
Constraints curvature conscurvature indefinite
#Convex Nonlinear Constraints nconvexnlcons 0
#Concave Nonlinear Constraints nconcavenlcons 0
#Indefinite Nonlinear Constraints nindefinitenlcons 480
#Nonzeros in Jacobian njacobiannz 3896
#Nonlinear Nonzeros in Jacobian njacobiannlnz 960
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 960
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 0
#Blocks in Hessian of Lagrangian nlaghessianblocks 15
Minimal blocksize in Hessian of Lagrangian laghessianminblocksize 18
Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize 18
Average blocksize in Hessian of Lagrangian laghessianavgblocksize 18.0
Sparsity Jacobian
Sparsity Lag. Hessian




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