NLSolversBase.jl

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Why are`f_calls`, `df_calls` and `h_calls` all `Vector{Int}`?

1

It seems strange to me that these fields are `Vector{Int}` when the objective types (`OnceDifferentiable` etc.) are already mutable. Is there any use case where a vector is needed to...

junyuan-chen

xref https://github.com/JuliaNLSolvers/Optim.jl/pull/977, specially point 1 of the TODO list: > The passing of array type for the Jacobian of the constraints is ugly. I made it an argument to IPNewton,...

longemen3000

make x_of_nans work on 0-dimensional arrays

4

The `x_of_nans` function gives a `MethodError` for 0-dimensional arrays due to JuliaLang/julia#41643. A workaround is to use `map(Tf, x)` instead of `Tf.(x)`. Before this PR: ```jl julia> x_of_nans(fill(0.0)) ERROR: MethodError:...

stevengj

For instance, how does one learn how to use `TwiceDifferentiableConstraints`? `?TwiceDifferentiableConstraints` says "No documentation found". The documentation of `Optim.jl` uses it in [the `IPNewton` tutorial](https://julianlsolvers.github.io/Optim.jl/stable/#examples/generated/ipnewton_basics/), but doesn't explain what it...

ForceBru

Surprising runtime behaviour with objective types

2

Based on the discussion at https://discourse.julialang.org/t/surprising-runtime-behaviour-when-wrapping-functions/68140/3 the small test program ``` using BenchmarkTools using NLSolversBase function evaluate(f, x) return f(x) end function evaluate(od::OnceDifferentiable, x) return od.f(x) end function test(f, n)...

goerch

Message from JET

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Running JET results in the following message ``` ┌ @ C:\Users\Win10\source\repos\julia\NLSolversBase.jl-7.8.1\src\objective_types\incomplete.jl:46 │ ArgumentError: invalid type for argument t in method definition for make_f at C:\Users\Win10\source\repos\julia\NLSolversBase.jl-7.8.1\src\objective_types\incomplete.jl:46 │ Stacktrace: │ [1] evaluate_methoddef(frame::JuliaInterpreter.Frame,...

goerch

Add option to specify ForwardDiff chunk size

4

Hi, it would be nice to have this option available (and propagate it to Optim.jl as well), this setting can have a great impact on performances/allocations in some situations (see...

touste

Extending autodiff compatibilities

4

I was considering extending the autodiff compatibilities of NLSolverBase and PR the result back. I wanted to include ReverseDiff.jl, Zygote.jl and maybe also forward-over-reverse for the Hessian. Is there any...

raphaelchinchilla

Himmelblau references in README.md

2

Text and code refer to Hosaki's function but the math image is Himmelblau's function.  Later Himmelblau's function is referenced again 

jaakkor2

This is required for Optim to support zeroth order methods with complex minimizers. A PR for that will follow in a few minutes.

thisrod