Option "qp_iteration_limit" is unknown

[odow]

Is there something special about qp_iteration_limit and qp_nullspace_limit?

julia> using HiGHS

julia> h = Highs_create()
Ptr{Nothing} @0x00007f8d4a76da00

julia> typeP = Ref{Cint}(0)
Base.RefValue{Int32}(0)

julia> Highs_getOptionType(h, "qp_iteration_limit", typeP)
ERROR:   getOptionIndex: Option "qp_iteration_limit" is unknown
-1

julia> Highs_getOptionType(h, "qp_nullspace_limit", typeP)
ERROR:   getOptionIndex: Option "qp_nullspace_limit" is unknown
-1

Raised by @sstroemer in jump-dev/HiGHS.jl#231

[jajhall]

Strange, I'll look into this today, as there's probably a simple explanation and fix

[jajhall]

Calls to getOptionType are made for all options in TestOptions.cpp so I can't see that there is a bug in HiGHS. My only thought is the version number. I introduced qp_iteration_limit and qp_nullspace_limit on 1 May 2024, so they will have been in releases from v1.7.1 (11 June 2024).

What version of HiGHS are you using, @sstroemer?

[sstroemer]

Thanks - that solved it! (can't close this since it's not mine)

If someone stumbles upon this: Doing update HiGHS_jll in package mode should be enough to fix this.

---

Just adding some context:

I'm using HiGHS.jl, version v1.9.3 - however when calling HiGHS it showed version 1.7.0 (git hash: 50670fd4c). I've recreated the environment on another computer, which now gives me (with the same HiGHS.jl version) 1.7.2, where it works as you said. Why?

I did update HiGHS.jl some time ago, but it's compat entry currently lists HiGHS_jll = "=1.5.1, =1.5.3, =1.6.0, =1.7.0, =1.7.1, =1.7.2", which left me at the old version of HiGHS_jll.jl. Interestingly enough, it seems like @odow was able to reproduce the bug in jump-dev/HiGHS.jl#231, which I assume can only happen for a similar env with an old HiGHS_jll.jl - maybe that pitfall might be worth a note somewhere on the JuMP or MOI side of things (assuming there is the actual need to keep the old versions in the compat)?

[odow]

Oops. I didn't check the version. I just assumed it was the most recent. Sorry for the noise.