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Support FastDifferentiation.jl #34

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merged 2 commits into from
Apr 3, 2024
Merged

Support FastDifferentiation.jl #34

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d0e3f35
Support FastDifferentiation
gdalle Apr 3, 2024
13857fb
Add tests
gdalle Apr 3, 2024
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20 changes: 19 additions & 1 deletion src/ADTypes.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,8 @@ abstract type AbstractSymbolicDifferentiationMode <: AbstractADType end
abstract type AbstractSparseReverseMode <: AbstractReverseMode end
abstract type AbstractSparseForwardMode <: AbstractForwardMode end
abstract type AbstractSparseFiniteDifferences <: AbstractFiniteDifferencesMode end
abstract type AbstractSparseSymbolicDifferentiationMode <:
AbstractSymbolicDifferentiationMode end

"""
AutoChainRules{RC}
Expand Down Expand Up @@ -229,6 +231,20 @@ Chooses [Diffractor.jl](https://github.com/JuliaDiff/Diffractor.jl).
"""
struct AutoDiffractor <: AbstractADType end

"""
AutoFastDifferentiation

Chooses [FastDifferentiation.jl](https://github.com/brianguenter/FastDifferentiation.jl).
"""
struct AutoFastDifferentiation <: AbstractSymbolicDifferentiationMode end
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@brianguenter this one. Right now it has no fields, but it would be the right spot to decide "settings" for the FastDifferentiation backend. You can take a look at the other structs to get an idea of the stuff that goes in there


"""
AutoSparseFastDifferentiation

Chooses [FastDifferentiation.jl](https://github.com/brianguenter/FastDifferentiation.jl) while exploiting sparsity.
"""
struct AutoSparseFastDifferentiation <: AbstractSparseSymbolicDifferentiationMode end

export AutoChainRules,
AutoDiffractor,
AutoFiniteDiff,
Expand All @@ -244,5 +260,7 @@ export AutoChainRules,
AutoSparseZygote,
AutoSparseReverseDiff,
AutoPolyesterForwardDiff,
AutoSparsePolyesterForwardDiff
AutoSparsePolyesterForwardDiff,
AutoFastDifferentiation,
AutoSparseFastDifferentiation
end
8 changes: 8 additions & 0 deletions test/runtests.jl
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Expand Up @@ -95,4 +95,12 @@ struct CustomTag end
adtype = AutoDiffractor()
@test adtype isa ADTypes.AbstractADType
@test adtype isa AutoDiffractor

adtype = AutoFastDifferentiation()
@test adtype isa ADTypes.AbstractADType
@test adtype isa AutoFastDifferentiation

adtype = AutoSparseFastDifferentiation()
@test adtype isa ADTypes.AbstractADType
@test adtype isa AutoSparseFastDifferentiation
end
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