Broken MOI interface

[laurentbartholdi]

The interface with higher-level solvers seems to be broken: with Julia v1.7, DSDP v0.0.1, latest JuMP.jl and Convex.jl (all pulled from github)

julia> using DSDP, Convex
julia> #A is a list of matrices, b is a matrix, c is a vector
julia> A = [[1 0;0 1],[0 1;1 0]]; b = [2 3;4 5]; c = [6,7] # for example
julia> x = Variable(length(A));
julia> problem = minimize(sum(x[l]*v for (l,v) in enumerate(c)),[sum(x[l]*m for (l,m) in enumerate(A))+b in :SDP])
julia> solve!(problem,DSDP.Optimizer)
ERROR: MethodError: no method matching allocate_variables(::DSDP.Optimizer, ::Int64)
Closest candidates are:
  allocate_variables(::Union{MathOptInterface.Utilities.AbstractModelLike{T}, MathOptInterface.Utilities.AbstractOptimizer{T}} where T, ::Any) at /Users/laurent/.julia/packages/MathOptInterface/1EYfq/src/Utilities/model.jl:783
  allocate_variables(::MathOptInterface.Utilities.MockOptimizer, ::Any) at /Users/laurent/.julia/packages/MathOptInterface/1EYfq/src/Utilities/mockoptimizer.jl:767
Stacktrace:
  [1] copy_free_variables(dest::DSDP.Optimizer, idxmap::MathOptInterface.Utilities.IndexMap, vis_src::Vector{MathOptInterface.VariableIndex}, copy_variables::typeof(MathOptInterface.Utilities.allocate_variables))
    @ MathOptInterface.Utilities ~/.julia/packages/MathOptInterface/1EYfq/src/Utilities/copy.jl:557
  [2] allocate_load(dest::DSDP.Optimizer, src::MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.GenericModel{Float64, MathOptInterface.Utilities.ModelFunctionConstraints{Float64}}}, copy_names::Bool, filter_constraints::Nothing)
    @ MathOptInterface.Utilities ~/.julia/packages/MathOptInterface/1EYfq/src/Utilities/copy.jl:1067
  [3] #automatic_copy_to#127
    @ ~/.julia/packages/MathOptInterface/1EYfq/src/Utilities/copy.jl:26 [inlined]
  [4] #copy_to#3
    @ ~/.julia/packages/DSDP/x4iAt/src/MOI_wrapper.jl:201 [inlined]
  [5] attach_optimizer(model::MathOptInterface.Utilities.CachingOptimizer{DSDP.Optimizer, MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.GenericModel{Float64, MathOptInterface.Utilities.ModelFunctionConstraints{Float64}}}})
    @ MathOptInterface.Utilities ~/.julia/packages/MathOptInterface/1EYfq/src/Utilities/cachingoptimizer.jl:185
  [6] optimize!(m::MathOptInterface.Utilities.CachingOptimizer{DSDP.Optimizer, MathOptInterface.Utilities.UniversalFallback{MathOptInterface.Utilities.GenericModel{Float64, MathOptInterface.Utilities.ModelFunctionConstraints{Float64}}}})
    @ MathOptInterface.Utilities ~/.julia/packages/MathOptInterface/1EYfq/src/Utilities/cachingoptimizer.jl:248
  [7] optimize!
    @ ~/.julia/packages/MathOptInterface/1EYfq/src/Bridges/bridge_optimizer.jl:293 [inlined]
  [8] solve!(problem::Problem{Float64}, optimizer::DSDP.Optimizer; check_vexity::Bool, verbose::Bool, warmstart::Bool, silent_solver::Bool)
    @ Convex ~/.julia/packages/Convex/LMZC7/src/solution.jl:243
  [9] solve!(problem::Problem{Float64}, optimizer::DSDP.Optimizer)
    @ Convex ~/.julia/packages/Convex/LMZC7/src/solution.jl:221
 [10] solve!(problem::Problem{Float64}, optimizer_factory::Type; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Convex ~/.julia/packages/Convex/LMZC7/src/solution.jl:192
 [11] solve!(problem::Problem{Float64}, optimizer_factory::Type)
    @ Convex ~/.julia/packages/Convex/LMZC7/src/solution.jl:191
 [12] top-level scope
    @ REPL[17]:1

I had the same problems with JuMP.

[odow]

The interface with higher-level solvers seems to be broken

Potentially. DSDP.jl hasn't been updated in more than 1 year. Although...

Julia v1.7

Not that Julia 1.7 has not been released, so JuMP packages are not guaranteed to work.

latest JuMP.jl and Convex.jl (all pulled from github)

Note that the master branch of each package is not guaranteed to work with every package. Use the Julia package manager instead:

] add JuMP

Not

] add JuMP#master
] add https://github.com/jump-dev/JuMP.jl