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ChrisRackauckasChrisRackauckas
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Setup GPU testing infrastructure
Noted in #759 (comment), GPU is completely untested in ForwardDiff.jl, so this sets up the buildkite pipeline. I setup the backend and all, and just took a few tests from #760 to seed it. The point of this isn't really to be a comprehensive set of GPU tests but rather to update this repo to have the standard tools the other repos have so GPU doesn't regress again/more.
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‎.buildkite/pipeline.yml

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steps:
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- label: "CUDA"
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plugins:
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- JuliaCI/julia#v1:
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version: "1"
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- JuliaCI/julia-test#v1:
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coverage: false # 1000x slowdown
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agents:
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queue: "juliagpu"
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cuda: "*"
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env:
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GROUP: 'CUDA'
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JULIA_PKG_SERVER: "" # it often struggles with our large artifacts
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# SECRET_CODECOV_TOKEN: "..."
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timeout_in_minutes: 180
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# Don't run Buildkite if the commit message includes the text [skip tests]
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if: build.message !~ /\[skip tests\]/

‎test/gpu/GPUGradientTest.jl

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using ForwardDiff, CUDA, Test
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fn(x) = sum(x .^ 2 ./ 2)
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x = [1.0, 2.0, 3.0]
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x_jl = CuArray(x)
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grad = ForwardDiff.gradient(fn, x)
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grad_jl = ForwardDiff.gradient(fn, x_jl)
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@test grad_jl isa CuArray
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@test Array(grad_jl) ≈ grad
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cfg = ForwardDiff.GradientConfig(
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fn, x_jl, ForwardDiff.Chunk{2}(), ForwardDiff.Tag(fn, eltype(x))
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)
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grad_jl = ForwardDiff.gradient(fn, x_jl, cfg)
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@test grad_jl isa CuArray
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@test Array(grad_jl) ≈ grad

‎test/gpu/GPUJacobianTest.jl

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using ForwardDiff, CUDA, Test
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f(x) = x .^ 2 ./ 2
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x = [1.0, 2.0, 3.0]
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x_jl = CuArray(x)
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jac = ForwardDiff.jacobian(f, x)
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jac_jl = ForwardDiff.jacobian(f, x_jl)
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@test jac_jl isa CuArray
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@test Array(jac_jl) ≈ jac

‎test/gpu/Project.toml

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[deps]
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CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
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[compat]
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CUDA = "5"

‎test/runtests.jl

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using ForwardDiff, Test, Random
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using Pkg
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const GROUP = get(ENV, "GROUP", "All")
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function activate_gpu_env()
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Pkg.activate("gpu")
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Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
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Pkg.instantiate()
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end
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SEED = trunc(Int, time())
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println("##### Random.seed!($SEED), on VERSION == $VERSION")
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Random.seed!(SEED)
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@testset "ForwardDiff.jl" begin
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t0 = time()
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@testset "Partials" begin
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println("##### Testing Partials...")
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t = @elapsed include("PartialsTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Dual" begin
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println("##### Testing Dual...")
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t = @elapsed include("DualTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Derivatives" begin
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println("##### Testing derivative functionality...")
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t = @elapsed include("DerivativeTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Gradients" begin
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println("##### Testing gradient functionality...")
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t = @elapsed include("GradientTest.jl")
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println("##### done (took $t seconds).")
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if GROUP == "All" || GROUP == "Core"
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@testset "ForwardDiff.jl" begin
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t0 = time()
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@testset "Partials" begin
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println("##### Testing Partials...")
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t = @elapsed include("PartialsTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Dual" begin
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println("##### Testing Dual...")
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t = @elapsed include("DualTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Derivatives" begin
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println("##### Testing derivative functionality...")
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t = @elapsed include("DerivativeTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Gradients" begin
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println("##### Testing gradient functionality...")
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t = @elapsed include("GradientTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Jacobians" begin
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println("##### Testing jacobian functionality...")
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t = @elapsed include("JacobianTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Hessians" begin
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println("##### Testing hessian functionality...")
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t = @elapsed include("HessianTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Perturbation Confusion" begin
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println("##### Testing perturbation confusion functionality...")
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t = @elapsed include("ConfusionTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Miscellaneous" begin
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println("##### Testing miscellaneous functionality...")
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t = @elapsed include("MiscTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Allocations" begin
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println("##### Testing allocations...")
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t = @elapsed include("AllocationsTest.jl")
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println("##### done (took $t seconds).")
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end
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println("##### Running all ForwardDiff tests took $(time() - t0) seconds.")
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end
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@testset "Jacobians" begin
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println("##### Testing jacobian functionality...")
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t = @elapsed include("JacobianTest.jl")
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println("##### done (took $t seconds).")
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elseif GROUP == "CUDA"
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@testset "ForwardDiff.jl CUDA" begin
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activate_gpu_env()
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@testset "CUDA Gradients" begin
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println("##### Testing CUDA gradients...")
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t = @elapsed include("CUDAGradientTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "CUDA Jacobians" begin
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println("##### Testing CUDA Jacobians...")
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t = @elapsed include("CUDAJacobianTest.jl")
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println("##### done (took $t seconds).")
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end
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end
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@testset "Hessians" begin
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println("##### Testing hessian functionality...")
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t = @elapsed include("HessianTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Perturbation Confusion" begin
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println("##### Testing perturbation confusion functionality...")
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t = @elapsed include("ConfusionTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Miscellaneous" begin
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println("##### Testing miscellaneous functionality...")
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t = @elapsed include("MiscTest.jl")
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println("##### done (took $t seconds).")
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end
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@testset "Allocations" begin
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println("##### Testing allocations...")
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t = @elapsed include("AllocationsTest.jl")
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println("##### done (took $t seconds).")
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end
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println("##### Running all ForwardDiff tests took $(time() - t0) seconds.")
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end
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end

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