I’m trying to write a function that outputs arrays that are filled according to a certain computation. I want the user to be able to select the type of the array according to an argument. Consider these two example functions: function my_fill1(val, array_constructor::Type{AC}=Array) where {AC<:Abs…

If you’re already using KernelAbstractions.jl, you can use what they provide, no? See, e.g., KernelAbstractions.allocate and the Backend flags.

Type instability with Type{T} selectors in keyword arguments

General Usage

marcsgil May 29, 2025, 3:14pm 5

I see. In the setting that I’m imagining, the user will just set this keyword value as CuArray or some other GPU array type according to their hardware. Then this should be safe?

Surprising test timings

Topic		Replies	Views
Type-unstable keyword constructor on parameterized type Performance	5	889	February 8, 2018
Type instability - two examples: yes/no? General Usage question	4	680	March 15, 2017
Type instability with StaticArrays New to Julia question	6	488	January 25, 2019
Type stability, passing type as argument, where keyword New to Julia type-stability	5	378	March 29, 2022
Type Instability using StaticArrays that I dont get Performance	4	227	January 31, 2024

Type instability with Type{T} selectors in keyword arguments

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