Issues

• JaCoP JNI: local refs from model conversion are never released (Invocation API)

  ampl/mp#283 · Filter by author QiuYucheng2003 opened on Sep 9, 2026

• JaCoP JNI wrapper stores FindClass local refs instead of global refs

  ampl/mp#282 · Filter by author QiuYucheng2003 opened on Sep 9, 2026

• Semidefinite Programming

  enhancement
  ampl/mp#281 · Filter by author glebbelov opened on Jun 5, 2026
  

• Multi-objective options

  enhancement
  ampl/mp#280 · Filter by author glebbelov opened on Mar 10, 2026
  

• Benchmark suite

  enhancement
  ampl/mp#279 · Filter by author glebbelov opened on Mar 4, 2026
  

• Sending piecewise-linear approximations to Gurobi's local nonlinear solver

  ampl/mp#278 · Filter by author 4er4er4er opened on Mar 3, 2026
  1

  

• Expression inlining similar to quadratics

  enhancement
  ampl/mp#277 · Filter by author glebbelov opened on Feb 18, 2026
  

• Out-multiplication of quadratics

  enhancement
  ampl/mp#276 · Filter by author glebbelov opened on Feb 11, 2026
  

• Revise old-MP drivers

  bugenhancement
  ampl/mp#273 · Filter by author glebbelov opened on Jan 29, 2026
  

• Solution presolve

  enhancement
  ampl/mp#272 · Filter by author glebbelov opened on Jan 8, 2026
  

• Redefining initialization expression can lose the original result variable

  bug
  ampl/mp#270 · Filter by author glebbelov opened on Oct 6, 2025
  

• Unify variable/expression domains

  enhancement
  ampl/mp#268 · Filter by author glebbelov opened on Jun 17, 2025
  

• Gurobi 12.0.1 different (and much slower) than 12.0.0

  ampl/mp#267 · Filter by author 4er4er4er opened on Jun 10, 2025
  6

  

• Inline algebraic expressions

  enhancement
  ampl/mp#266 · Filter by author glebbelov opened on May 28, 2025
  

• SOS redefinition

  enhancement
  ampl/mp#262 · Filter by author glebbelov opened on Apr 24, 2025
  

• Options issues in CPLEX MP

  ampl/mp#261 · Filter by author 4er4er4er opened on Apr 18, 2025
  5

  

• Redefining constraints with outlined result variables reverses their context

  bug
  ampl/mp#260 · Filter by author glebbelov opened on Apr 8, 2025
  

• Documenting common and most important options across all solvers

  ampl/mp#258 · Filter by author fdabrandao opened on Mar 13, 2025

• BARONmp "MIPFlatConverter: Asked to complement variable . . ." error

  ampl/mp#257 · Filter by author 4er4er4er opened on Mar 9, 2025
  1

  

• Mosek interrupt

  enhancement
  ampl/mp#256 · Filter by author glebbelov opened on Mar 4, 2025
  

• CONOPT memory limited to 8GB?

  ampl/mp#255 · Filter by author 4er4er4er opened on Mar 4, 2025
  1

  

• .. value-table: in Xpress solver options

  ampl/mp#253 · Filter by author fdabrandao opened on Feb 13, 2025
  2

  

• Network simplex options missing in CPLEX MP

  ampl/mp#251 · Filter by author 4er4er4er opened on Feb 10, 2025
  2

  

• CPLEX ignores 'mipdisplay'

  ampl/mp#250 · Filter by author 4er4er4er opened on Jan 27, 2025
  

• Differences between CPLEX's sensitivity option in ASL and MP

  bugenhancement
  ampl/mp#249 · Filter by author 4er4er4er opened on Jan 18, 2025
  2