Type Stability of DifferentialEquations.jl

Specific Domains
1

I’m learning how to use DifferentialEquations.jl, specifically the OrdinaryDiffEq.jl package, and making sure I do everything “type stable”. I’m seeing some issues when I use @report_opt from JET.jl. Here’s a MWE:

using OrdinaryDiffEq

f(u) = -u

function g()
prob = ODEProblem{false}((u, p, t) -> f(u), 1.0, (0.0, 1.0))
sol = solve(prob)
end

@code_warntype g() gives a bunch of output, but no red Anys. @report_opt g() give a bunch of output, including multiple “runtime dispatch detected”. Is this something I should worry about?