Move Enzyme tests to separate test group

.github/workflows/Tests.yml

@@ -25,9 +25,33 @@ jobs:
         version:
           - '1'
           - 'lts'
-          - 'pre'
+          # 'pre' skipped due to ReTestItems incompatibility with Julia 1.13
+          # See: https://github.com/SciML/LineSearch.jl/issues/47
     uses: "SciML/.github/.github/workflows/tests.yml@v1"
     with:
       julia-version: "${{ matrix.version }}"
       group: "all"
     secrets: "inherit"
+
+  enzyme:
+    name: "Enzyme Tests"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - 'lts'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.version }}
+      - uses: julia-actions/cache@v2
+      - name: "Run Enzyme tests"
+        run: |
+          julia --project=test/enzyme -e '
+            using Pkg
+            Pkg.develop(PackageSpec(path = pwd()))
+            Pkg.instantiate()
+          '
+          julia --project=test/enzyme test/enzyme/runtests.jl

Project.toml

@@ -26,7 +26,6 @@ ADTypes = "1.9"
 CommonSolve = "0.2.4"
 ConcreteStructs = "0.2.3"
 DifferentiationInterface = "0.6.2, 0.7"
-Enzyme = "0.13.3"
 ExplicitImports = "1.14.0"
 FastClosures = "0.3"
 FiniteDiff = "2.24.0"
@@ -50,7 +49,6 @@ julia = "1.10"
 
 [extras]
 DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
-Enzyme = "7da242da-08ed-463a-9acd-ee780be4f1d9"
 ExplicitImports = "7d51a73a-1435-4ff3-83d9-f097790105c7"
 FiniteDiff = "6a86dc24-6348-571c-b903-95158fe2bd41"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
@@ -65,4 +63,4 @@ Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
 Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [targets]
-test = ["DifferentiationInterface", "Enzyme", "ExplicitImports", "FiniteDiff", "ForwardDiff", "Hwloc", "InteractiveUtils", "LineSearches", "NonlinearProblemLibrary", "ReTestItems", "ReverseDiff", "Test", "Tracker", "Zygote"]
+test = ["DifferentiationInterface", "ExplicitImports", "FiniteDiff", "ForwardDiff", "Hwloc", "InteractiveUtils", "LineSearches", "NonlinearProblemLibrary", "ReTestItems", "ReverseDiff", "Test", "Tracker", "Zygote"]

test/custom_optimizer_tests.jl

@@ -1,4 +1,5 @@
 # Test based on https://julianlsolvers.github.io/LineSearches.jl/stable/examples/generated/customoptimizer.html
+# Note: Enzyme tests are in a separate test group (test/enzyme/)
 @testsetup module CustomOptimizer
 using LinearAlgebra, SciMLBase, LineSearch, SciMLJacobianOperators
 
@@ -51,15 +52,15 @@ end
 
 @testitem "LineSearches.jl: Custom Optimizer" setup = [CustomOptimizer] begin
     using LineSearches, SciMLBase
-    using ADTypes, Tracker, ForwardDiff, Zygote, Enzyme, ReverseDiff, FiniteDiff
+    using ADTypes, Tracker, ForwardDiff, Zygote, ReverseDiff, FiniteDiff
 
     @testset "OOP Problem" begin
         nlf(x, p) = [p[1] - x[1], 10.0 * (x[2] - x[1]^2)]
         nlp = NonlinearProblem(nlf, [-1.0, 1.0], [1.0])
 
         @testset for autodiff in (
                 AutoTracker(), AutoForwardDiff(), AutoZygote(),
-                AutoEnzyme(), AutoReverseDiff(), AutoFiniteDiff(),
+                AutoReverseDiff(), AutoFiniteDiff(),
             )
             @testset "method: $(nameof(typeof(method)))" for method in (
                     LineSearches.BackTracking(; order = 3),
@@ -82,7 +83,7 @@ end
         nlp = NonlinearProblem(nlf, [-1.0, 1.0], [1.0])
 
         @testset for autodiff in (
-                AutoForwardDiff(), AutoEnzyme(), AutoReverseDiff(), AutoFiniteDiff(),
+                AutoForwardDiff(), AutoReverseDiff(), AutoFiniteDiff(),
             )
             @testset "method: $(nameof(typeof(method)))" for method in (
                     LineSearches.BackTracking(; order = 3),
@@ -103,15 +104,15 @@ end
 
 @testitem "Native Line Search: Custom Optimizer" setup = [CustomOptimizer] begin
     using SciMLBase
-    using ADTypes, Tracker, ForwardDiff, Zygote, Enzyme, ReverseDiff, FiniteDiff
+    using ADTypes, Tracker, ForwardDiff, Zygote, ReverseDiff, FiniteDiff
 
     @testset "OOP Problem" begin
         nlf(x, p) = [p[1] - x[1], 10.0 * (x[2] - x[1]^2)]
         nlp = NonlinearProblem(nlf, [-1.0, 1.0], [1.0])
 
         @testset for autodiff in (
                 AutoTracker(), AutoForwardDiff(), AutoZygote(),
-                AutoEnzyme(), AutoReverseDiff(), AutoFiniteDiff(),
+                AutoReverseDiff(), AutoFiniteDiff(),
             )
             @testset "method: $(nameof(typeof(method)))" for method in (
                     LiFukushimaLineSearch(),
@@ -133,7 +134,7 @@ end
         nlp = NonlinearProblem(nlf, [-1.0, 1.0], [1.0])
 
         @testset for autodiff in (
-                AutoForwardDiff(), AutoEnzyme(), AutoReverseDiff(), AutoFiniteDiff(),
+                AutoForwardDiff(), AutoReverseDiff(), AutoFiniteDiff(),
             )
             @testset "method: $(nameof(typeof(method)))" for method in (
                     LiFukushimaLineSearch(),

test/enzyme/Project.toml

@@ -0,0 +1,30 @@
+[deps]
+ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
+DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
+Enzyme = "7da242da-08ed-463a-9acd-ee780be4f1d9"
+FiniteDiff = "6a86dc24-6348-571c-b903-95158fe2bd41"
+ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
+LineSearch = "87fe0de2-c867-4266-b59a-2f0a94fc965b"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+LineSearches = "d3d80556-e9d4-5f37-9878-2ab0fcc64255"
+ReverseDiff = "37e2e3b7-166d-5795-8a7a-e32c996b4267"
+SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
+SciMLJacobianOperators = "19f34311-ddf3-4b8b-af20-060888a46c0e"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
+Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
+
+[compat]
+ADTypes = "1.9"
+DifferentiationInterface = "0.6.2, 0.7"
+Enzyme = "0.13.3"
+FiniteDiff = "2.24.0"
+ForwardDiff = "0.10.36, 1"
+LineSearch = "0.1"
+LineSearches = "7.3.0"
+ReverseDiff = "1.15.3"
+SciMLBase = "2.53.1"
+SciMLJacobianOperators = "0.1"
+Test = "1.10"
+Tracker = "0.2.35"
+Zygote = "0.6.71"