QPLIB
A Library of Quadratic Programming Instances
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| Formats | gms lp mod qplib |
| Problem type probtype | CCQ |
| Solution point objective value solobjvalue | -8668219.07900000 (gdx, sol) |
| Solution point infeasibility solinfeasibility | 3.1433e-10 |
| Donor donor | Ruth Misener |
| #Variables nvars | 2015 |
| #Binary Variables nbinvars | 0 |
| #Integer Variables nintvars | 0 |
| #Bounded non-binary Variables nboundedvars | 0 |
| #Variables with only one bound nsingleboundedvars | 15 |
| #Nonlinear Variables nnlvars | 1159 |
| #Nonlinear Binary Variables nnlbinvars | 0 |
| #Nonlinear Integer Variables nnlintvars | 0 |
| Objective Sense objsense | min |
| Objective type objtype | quadratic |
| Objective curvature objcurvature | convex |
| #Negative eigenvalues in objective matrix nobjquadnegev | |
| #Positive eigenvalues in objective matrix nobjquadposev | 168 |
| #Nonzeros in Objective nobjnz | 344 |
| #Nonlinear Nonzeros in Objective nobjnlnz | 344 |
| #Quadratic Terms in Objective nobjquadnz | 608 |
| #Square Terms in Objective nobjquaddiagnz | 344 |
| #Constraints ncons | 1992 |
| #Linear Constraints nlincons | 1192 |
| #Quadratic Constraints nquadcons | 800 |
| #Diagonal Quadratic Constraints ndiagquadcons | 0 |
| Constraints curvature conscurvature | indefinite |
| #Convex Nonlinear Constraints nconvexnlcons | 0 |
| #Concave Nonlinear Constraints nconcavenlcons | 0 |
| #Indefinite Nonlinear Constraints nindefinitenlcons | 800 |
| #Nonzeros in Jacobian njacobiannz | 10068 |
| #Nonlinear Nonzeros in Jacobian njacobiannlnz | 3700 |
| #Nonzeros in (Upper-Left) Hessian of Lagrangian nlaghessiannz | 3872 |
| #Nonzeros in Diagonal of Hessian of Lagrangian nlaghessiandiagnz | 344 |
| #Blocks in Hessian of Lagrangian nlaghessianblocks | 176 |
| Minimal blocksize in Hessian of Lagrangian laghessianminblocksize | 1 |
| Maximal blocksize in Hessian of Lagrangian laghessianmaxblocksize | 102 |
| Average blocksize in Hessian of Lagrangian laghessianavgblocksize | 6.585227 |
| Sparsity Jacobian |  |
| Sparsity Lag. Hessian |  |
QPLIB_2981.gms
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