I’m using Enzyme to perform automatic differentiation. I thought that as the primal code is type stable and non allocating, the enzyme autodiff function would also be. However for me the minimized example below gives the output: Autodiff time 0.000005 seconds (4 allocations: 192 bytes) It seems…

Also you can use Enzyme.API.printall!(true) to see the LLVM input code Enzyme sees as well as the derivative code generated. Simiarly Enzyme.API.printperf!(true) will print warnings of where there is a situation where it may need to cache (as it couldn’t prove or otherwise optimize it such that it c…

Enzyme autodiff: Why am I getting allocations?

Specific Domains Machine Learning

Larbino1 January 29, 2024, 1:19pm 21

Ah! I think I’ve found what your mean: Base.Experimental.Const!

Topic		Replies	Views
Enzyme.jl non-allocating function has allocating gradient General Usage	7	313	December 2, 2024
Passing a Cache to optimization function Optimization (Mathematical) optimization , autodiff , enzyme	21	677	May 29, 2025
Make mutating function more AD-friendly Performance tullio , autodiff , enzyme	10	423	October 23, 2025
What's the state of Automatic Differentiation in Julia January 2023? General Usage autodiff	41	13217	June 21, 2024
How to differentiate using Enzyme.jl? General Usage autodiff , enzyme	7	1034	November 18, 2024

Enzyme autodiff: Why am I getting allocations?

Related topics