Move Enzyme AD tests to their own group and environment, excluded from prereleases - #1261
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Enzyme v0.13.182 fails to differentiate through the BLAS `dot` lowering
introduced in Julia 1.13 ("No augmented forward pass found for
ijl_lazy_load_and_lookup"), breaking the Core CI job on the `pre` channel.
The upstream fix (Enzyme 23ff630) is not yet in a registered release.
Split the Enzyme-dependent AD tests into their own `AD` test group, folder,
and environment:
- test/ADtests.jl and test/AD_performance_regression.jl move to test/AD/.
- The AD group gets its own env (test/AD/Project.toml), so its Enzyme-family
dependencies (Enzyme, Tracker, Mooncake, BenchmarkTools, Ipopt,
OptimizationMOI, OptimizationLBFGSB) live only there and are removed from the
main test target, simplifying the main [extras]/[targets]/[compat].
- test_groups.toml declares the AD group with versions = ["lts", "1"] so CI
runs it on stable releases but excludes it from the `pre` channel until a
fixed Enzyme is registered.
Verified locally: `GROUP=AD` resolves/instantiates the new env and passes
(AD Tests 123/123, AD Performance Regression 3/3) on Julia 1.12.4; the main
test env also builds without the moved dependencies.
See SciML#1260.
Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
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Fixes #1260.
Problem
The Julia
pre(prerelease) Core CI job fails because Enzyme v0.13.182 cannot differentiate through Julia 1.13's new BLASdotlowering:Observed with Enzyme v0.13.182: Julia 1.12.6 passes; 1.13.0-beta3 / 1.13.0-rc1 fail. The upstream fix (Enzyme
23ff630) is not yet in a registered release (Enzymemainalready passes on 1.13.0-rc1).Change
The Enzyme-dependent AD tests are split into their own group, folder, and environment:
test/ADtests.jlandtest/AD_performance_regression.jl→ moved totest/AD/.test/AD/Project.toml(same pattern astest/qaandtest/downstream): the AD-only dependencies —Enzyme,Tracker,Mooncake,BenchmarkTools,Ipopt,OptimizationMOI,OptimizationLBFGSB— now live only there and are removed from the main test target, simplifying the root[extras]/[targets]/[compat](and the now-dead[sources]for the two moved sublibs). Shared backends (ForwardDiff/Zygote/ReverseDiff/FiniteDiff) remain in the main target since Core tests use them.test/runtests.jl: theADgroup entry now carriesenv = joinpath(@__DIR__, "AD").test/test_groups.toml: declares theADgroup withversions = ["lts", "1"], so the CI matrix (grouped-tests.yml) runs it on stable releases but not on theprechannel.Re-enabling on
prelater is a one-line change (add"pre"back to the AD group'sversions).Verification
GROUP=ADpath end-to-end (Pkg.test()→run_testsactivatestest/AD, develops Optimization, instantiates, runs the tests) on Julia 1.12.4: AD Tests 123/123, AD Performance Regression 3/3,Testing Optimization tests passed. This also exercised the new env's resolution/instantiation.test/runtests.jl.🤖 Generated with Claude Code