Debug CI times

[charleskawczynski]

No description provided.

[charleskawczynski]

Looks like the compile times are from ClimaCore. I'll try bisecting

cc @szy21, @dennisYatunin

[charleskawczynski]

I'm going to use this snippet from PkgDevTools:

julia --project=examples

function with_precompile_set(fn; precompile=false)
    # ENV does not always have JULIA_PKG_PRECOMPILE_AUTO
    # precompile_value = ENV["JULIA_PKG_PRECOMPILE_AUTO"]
    x = "JULIA_PKG_PRECOMPILE_AUTO"
    precompile₀ = haskey(ENV, x) ? ENV[x] : nothing
    if !precompile
        @info "Temporarily setting ENV[$x] = 0"
        ENV[x] = 0
    end
    fn()
    if !precompile
        if isnothing(precompile₀); pop!(ENV, x)
        else; ENV[x] = precompile₀
        end
    end
    return precompile₀
end

using Pkg
with_precompile_set() do
	Pkg.add(PackageSpec(;name="ClimaCore", rev="ef82fe7cc8bae7fc638655c8ada6ed8fc5f627bc"))
end

• ef82fe7 is good.
• [98f4047] pending

[charleskawczynski]

Bummer, it does seem to be from adding Nh as a static parameter. I'm not really sure why.

[szy21]

Thanks for looking into this!

[charleskawczynski]

I think that the result of this investigation lead to 3 findings:

• Static Nh in ClimaCore increased compile times (to be temporarily reverted)
• Dispatch performance regression JuliaLang/julia#55807
• And compile times in diagnostics: Simplify storage Dict keys ClimaDiagnostics.jl#85 orchestrate_diagnostics has lots of inference failures ClimaDiagnostics.jl#82 (with improvement Change storage dictionaries to vectors ClimaDiagnostics.jl#86)