Flux.jl/test/optimise.jl
2019-03-08 15:00:32 +00:00

56 lines
1.4 KiB
Julia
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

using Flux.Optimise
using Flux.Optimise: runall
using Zygote: Params, gradient
using Test
# @testset "Optimise" begin
# w = randn(10, 10)
# @testset for opt in [ADAMW(), ADAGrad(0.1), AdaMax(), ADADelta(0.9), AMSGrad(),
# NADAM(), Descent(0.1), ADAM(), Nesterov(), RMSProp(),
# Momentum()]
# w = randn(10, 10)
# loss(x) = Flux.mse(w*x, w*x)
# for t = 1: 10^5
# θ = Params([w])
# θ̄ = gradient(() -> loss(rand(10)), θ)
# Optimise.update!(opt, θ, θ̄)
# end
# @test Flux.mse(w, w) < 0.01
# end
# end
# @testset "Optimiser" begin
# w = randn(10, 10)
# @testset for Opt in [InvDecay, WeightDecay, ExpDecay]
# w = param(randn(10, 10))
# loss(x) = Flux.mse(w*x, w*x)
# opt = Optimiser(Opt(), ADAM(0.001))
# for t = 1:10^5
# l = loss(rand(10))
# back!(l)
# delta = Optimise.apply!(opt, w.data, w.grad)
# w.data .-= delta
# end
# @test Flux.mse(w, w) < 0.01
# end
# end
# @testset "Training Loop" begin
# i = 0
# l = 1
#
# Flux.train!(() -> (sleep(0.1); i += 1; l),
# (),
# Iterators.repeated((), 100),
# Descent(),
# cb = Flux.throttle(() -> (i > 3 && Flux.stop()), 1))
#
# @test 3 < i < 50
#
# # Test multiple callbacks
# x = 0
# fs = [() -> (), () -> x = 1]
# cbs = runall(fs)
# cbs()
# @test x == 1
# end