v0.8.1

Gurobi v0.8.1

Diff since v0.8.0

Closed issues:

• can someone help me about Gurobi package error in Julia (#310)
• More fun with lazy update semantics (#315)
• Running Gurobi v0.7.7 on mac/Unable to locate Gurobi installation (#322)
• Failed to install Gurobi to Julia (#324)
• Error "Invalid Gurobi license" on HPC using machine-file option. (#325)

Merged pull requests:

• Adds buffering for variables deleted. (#317) (@henriquebecker91)
• Update Project.toml (#321) (@odow)
• Update README.md (#323) (@odow)
• Update Gurobi parameters to include new params released in 9.0 (#328) (@ryancorywright)

v0.8.0

Gurobi v0.8.0

Diff since v0.7.7

v0.7.7

Gurobi v0.7.7

Diff since v0.7.6

Closed issues:

• Trouble with Pkg.add("Gurobi") (#298)
• Invalid Gurobi license (#299)
• Error: out of memory when using on HPC cluster. (#304)
• Cannot properly precompile Gurobi. (#306)
• Error when retrieving the conflict status of a feasible MIP model (#307)
• readme says this wrapper only supports up to Gurobi 8.1 (#311)

Merged pull requests:

• Adds section Common Performance Pitfall with JuMP. (#301) (@henriquebecker91)
• Fix bug in setting a negative lower bound of a SOC constrained variable with add_constraints (#302) (@henriquebecker91)
• Adds a cache for lower and upper bounds. (#303) (@henriquebecker91)
• Don't hide the error being thrown by Gurobi when it fails to compute … (#308) (@odow)
• Adds a specialization of MOI.delete that deletes a batch of constraints. (#313) (@henriquebecker91)

v0.7.6

Gurobi v0.7.6

Diff since v0.7.5

Closed issues:

• Error code 10004 (#261)
• a problem about setting multiple objective functions (#264)
• Invalid Gurobi license in Juno only (#287)
• Could not load library "gurobi81" (#289)
• MethodError: no method matching Gurobi.Env(::Ptr{Nothing}) (#290)
• Multi-objective optimization (#292)
• Multi-objective optimization and Gurobi (#293)
• Multi-objective optimization (#294)

Merged pull requests:

• Highlight need to set NonConvex=2 (#286) (@odow)
• Install TagBot as a GitHub Action (#288) (@JuliaTagBot)
• Fix GurobiError with unknown params (#291) (@blegat)
• Add Multiobjective support to MOI (#295) (@odow)

v0.7.5

v0.7.5 (2020-01-17)

Diff since v0.7.4

Closed issues:

• Why is Gurobi slower than JuMP+Gurobi? (#279)
• DistributedMIPJobs and Workerpool (#220)

Merged pull requests:

• Add NonConvex parameter (#284) (odow)
• Add missing supports for Callbacks (#283) (odow)
• Specialization of MOI.delete for vector of variables (#282) (henriquebecker91)
• Set LazyConstraints by default (#281) (odow)
• Added WorkerPool to parameter list (#278) (mstriebs)

v0.7.4

v0.7.4 (2019-12-04)

Diff since v0.7.3

Closed issues:

• Reading Data from Infeasible QP Models (#274)
• Gurobi 9.0 - new release (#272)
• GRBgetBasisHead gives segmentation fault (#271)
• Doesn't detect my GUROBI_HOME variable (#270)

Merged pull requests:

• Add a skip for GITHUB_ACTIONS (#277) (odow)
• Update Project.toml (#276) (odow)
• Fix types of attribute queries and add tests (#275) (odow)
• Update build.jl to support Gurobi 9.0.0 (#273) (joseortiz3)
• DNMY: Implement MOI callbacks (#258) (odow)

v0.7.3

v0.7.3 (2019-11-05)

Diff since v0.7.2

Closed issues:

• Discrepancy between JuMP's getobjectivevalue and OBJ in Gurobi's Log (#263)
• ERROR: Failed to create environment (error 10023) (#260)
• Gurobi.GurobiError(10020, "Q matrix is not positive semi-definite (PSD)") (#255)
• My licence in Gurobi expired, I updated the licence, but it didn't help (#254)
• Remove x ≈ bnd checks when querying ConstraintDual for SingleVariable constraints (#250)
• Duplicate variable names (#249)
• Query Gurobi attributes from JuMP model (#246)
• Setting FEASIBILITY_SENSE should remove objective (#244)
• Fix ObjectiveFunction in ListOfAttributesSet (#242)
• Setting GRB\_UNDEFINED start values (#241)
• Update to version v0.7.0 downgrades JuMP to v0.18.6 (#232)
• Add support for VectorOfVariables-in-SecondOrderCone (#212)
• [MOI] Set Gurobi-specific attributes (#211)

Merged pull requests:

• Add upper bound on OrderedCollections (#267) (blegat)
• Bump version (#259) (odow)
• Handle GRB_UNDEFINED start values (#257) (odow)
• Fixes for handling ObjectiveFunctionType (#256) (odow)
• Use tolerance for SingleVariable dual checks (#252) (odow)
• Fix handling of duplicate names (#251) (odow)
• Discuss Gurobi-specific attributes (#248) (odow)
• MOI.get() and MOI.set() for model attributes (#247) (fa-bien)
• MOI.get() and MOI.set() for variable attributes (#245) (fa-bien)
• MOI.set() and MOI.get() for constraint attributes (#243) (fa-bien)
• Add VectorOfVariables-in-SecondOrderCone (#231) (odow)

v0.7.2

v0.7.2 (2019-08-27)

Diff since v0.7.1

Merged pull requests:

• Fix supports VariablePrimalStart (#240) (odow)

v0.7.1

v0.7.1 (2019-08-26)

Diff since v0.7.0

Closed issues:

• can we please get rid of the isascii assertion on variables? (#233)
• VariablePrimalStart doesn't support incremental setting (#225)
• Invalid Gurobi license windows10 (#219)
• Obtaining duals of convex problem with second order cone constraints not possible using Gurobi optimizer (#217)
• Variables with a mixed primal start values (#215)
• QCPDual values calculated but inaccessible using JuMP "dual" command (#213)
• Implement MOI.Silent (#203)
• Return MIP gap from gurobi, don't calculate it (#201)
• MOIWrapper doesn't implement get\_quadratic\_terms\_objective from LQOI (#144)

Merged pull requests:

• Bump version for new release (#239) (odow)
• Support VariablePrimalStart (#238) (odow)
• removed isascii assertions that were preventing unicode variables (#237) (ExpandingMan)
• Bump MOI (#236) (blegat)
• Use Tuple{DataType, DataType} instead of Any (#235) (blegat)
• Remove supports for non-copyable attributes (#234) (blegat)

v0.7.0

v0.7.0 (2019-08-13)

Diff since v0.6.0

Closed issues:

• julia0.6 add error (#229)
• julia> Pkg.add("LinearAlgebra") ERROR: unknown package LinearAlgebra (#228)
• Long output from gurobi (#226)
• How to solve large sparse LP? (#224)
• linear10b: Test Failed (#223)
• Gurobi.jl v0.6.0 "Unable to locate Gurobi installation" on Ubuntu (#221)
• [MOI] Changing bounds etc invalidates stored solution (#209)
• Fail to build Gurobi 8.1.0 in JuliaPro1.0.2.1 (#199)

Merged pull requests:

• Update README to move JuMP usage higher (#227) (odow)
• Add diagnostic to build.jl (#222) (odow)
• Completely re-write the Gurobi MOI wrapper. (#216) (odow)
• Update Julia to Julia 1.0 (#214) (odow)
• Compute IIS (#208) (dourouc05)
• Update link to Gurobi parameter list (#207) (r-barnes)
• Fix instances of old JuMP API (#206) (r-barnes)
• Add helpful hints about setting GUROBI_HOME environment variable. Use… (#205) (r-barnes)
• Fix JuMP API issue to match JuMPv0.19.0 (latest) (#204) (r-barnes)
• Expand installation instructions in README (#202) (odow)