ForwardDiff over anything - prepare inner gradient for HVP #552

Job	Run time
1 - DIT (Formalities)	2m 19s
1 - DIT (Zero)	7m 5s
1 - DI (Formalities)	1m 41s
1 - DIT (ForwardDiff)	3m 36s
1 - DI (Internals)	2m 47s
1 - DIT (Weird)	6m 55s
1 - DI (Back/Diffractor)	2m 8s
lts - DIT (Zero)	7m 7s
1 - DI (Back/Enzyme)	7m 3s
lts - DIT (ForwardDiff)	4m 6s
1 - DI (Back/FastDifferentiation)	3m 29s
pre - DIT (Formalities)	3m 9s
1 - DI (Back/FiniteDiff)	2m 23s
pre - DIT (Zero)	7m 9s
1 - DI (Back/FiniteDifferences)	2m 8s
pre - DIT (ForwardDiff)	4m 42s
1 - DI (Back/ForwardDiff)	7m 4s
pre - DIT (Weird)	7m 3s
1 - DI (Back/PolyesterForwardDiff)	2m 39s
1 - DI (Back/ReverseDiff)	4m 39s
1 - DI (Back/SecondOrder)	4m 52s
1 - DI (Back/Symbolics)	3m 15s
1 - DI (Back/Tapir)	4m 33s
1 - DI (Back/Tracker)	1m 59s
1 - DI (Back/Zygote)	3m 49s
1 - DI (Down/Detector)	2m 37s
1 - DI (Down/DifferentiateWith)	2m 39s
1 - DI (Down/Flux)	3m 18s
lts - DI (Internals)	1s
lts - DI (Back/FiniteDifferences)	2m 20s
lts - DI (Back/ForwardDiff)	2m 19s
lts - DI (Back/ReverseDiff)	2m 16s
lts - DI (Back/Tracker)	1m 8s
lts - DI (Back/Zygote)	1m 3s
lts - DI (Down/DifferentiateWith)	1m 4s
pre - DI (Internals)	1s
pre - DI (Back/Diffractor)	1s
pre - DI (Back/FastDifferentiation)	1s
pre - DI (Back/FiniteDiff)	1s
pre - DI (Back/FiniteDifferences)	1s
pre - DI (Back/ForwardDiff)	1s
pre - DI (Back/PolyesterForwardDiff)	1s
pre - DI (Back/ReverseDiff)	1s
pre - DI (Back/Symbolics)	1s
pre - DI (Back/Tracker)	1s
pre - DI (Back/Zygote)	1s
pre - DI (Down/DifferentiateWith)	1s
pre - DI (Down/Flux)	1s
	2h 6m 38s

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