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start trying to precompile ModelingToolkit better #1215

Merged
merged 4 commits into from
Feb 1, 2022
Merged

start trying to precompile ModelingToolkit better #1215

merged 4 commits into from
Feb 1, 2022

Commits on Feb 1, 2022

  1. start trying to precompile ModelingToolkit better 

    ```julia
using ModelingToolkit, OrdinaryDiffEq

function f()
      @parameters t σ ρ β
      @variables x(t) y(t) z(t)
      D = Differential(t)

      eqs = [D(D(x)) ~ σ*(y-x),
             D(y) ~ x*(ρ-z)-y,
             D(z) ~ x*y - β*z]

      @nAmed sys = ODESystem(eqs)
      sys = ode_order_lowering(sys)

      u0 = [D(x) => 2.0,
            x => 1.0,
            y => 0.0,
            z => 0.0]

      p  = [σ => 28.0,
            ρ => 10.0,
            β => 8/3]

      tspan = (0.0,100.0)
      prob = ODEProblem(sys,u0,tspan,p,jac=true)
end

using SnoopCompile

tinf = @snoopi_deep f()
```

```julia
Before:
InferenceTimingNode: 8.138765/20.550152 on Core.Compiler.Timings.ROOT() with 821 direct children
InferenceTimingNode: 8.152606/20.643050 on Core.Compiler.Timings.ROOT() with 821 direct children

After:
InferenceTimingNode: 8.216759/17.715817 on Core.Compiler.Timings.ROOT() with 839 direct children
InferenceTimingNode: 8.272943/17.854555 on Core.Compiler.Timings.ROOT() with 840 direct children
```

only 2 seconds for now, but it's a start.
    @ChrisRackauckas
    ChrisRackauckas committed Feb 1, 2022
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  2. Update precompile.jl

    @ChrisRackauckas
    ChrisRackauckas committed Feb 1, 2022
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  3. Move precompile.jl to the end

    @YingboMa
    YingboMa committed Feb 1, 2022
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  4. once you hack the fun don't snack.

    @ChrisRackauckas
    ChrisRackauckas committed Feb 1, 2022
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