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A Library of Quadratic Programming Instances

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QPLIB_1675

Formats gms lp mod qplib
Problem type probtype QCQ
Solution point objective value solobjvalue -75.66868248 (gdx, sol)
Solution point infeasibility solinfeasibility 6.7110e-11
Donor donor Nick Sahinidis
#Variables nvars 60
#Binary Variables nbinvars 0
#Integer Variables nintvars 0
#Bounded non-binary Variables nboundedvars 60
#Variables with only one bound nsingleboundedvars 0
#Nonlinear Variables nnlvars 60
#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 31
#Positive eigenvalues in objective matrix nobjquadposev 29
#Nonzeros in Objective nobjnz 60
#Nonlinear Nonzeros in Objective nobjnlnz 60
#Quadratic Terms in Objective nobjquadnz 896
#Square Terms in Objective nobjquaddiagnz 36
#Constraints ncons 13
#Linear Constraints nlincons 12
#Quadratic Constraints nquadcons 1
#Diagonal Quadratic Constraints ndiagquadcons 0
Constraints curvature conscurvature indefinite
#Convex Nonlinear Constraints nconvexnlcons 0
#Concave Nonlinear Constraints nconcavenlcons 0
#Indefinite Nonlinear Constraints nindefinitenlcons 1
#Nonzeros in Jacobian njacobiannz 776
#Nonlinear Nonzeros in Jacobian njacobiannlnz 60
#Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz 2640
#Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz 48
#Blocks in Hessian of Lagrangian nlaghessianblocks 1
Minimal blocksize in Hessian of Lagrangian laghessianminblocksize 60
Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize 60
Average blocksize in Hessian of Lagrangian laghessianavgblocksize 60.0
Sparsity Jacobian
Sparsity Lag. Hessian

QPLIB_1675.gms



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