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WIP: Make Enzyme discrete adjoints work #2282

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WIP: Make Enzyme discrete adjoints work #2282

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WIP: Make Enzyme discrete adjoints work
ChrisRackauckas Jul 13, 2024
079f118
Fastpow removal
ChrisRackauckas Jul 14, 2024
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10 changes: 5 additions & 5 deletions src/integrators/controllers.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ end
q = inv(qmax)
else
expo = 1 / (get_current_adaptive_order(alg, integrator.cache) + 1)
qtmp = DiffEqBase.fastpow(EEst, expo) / gamma
qtmp = ^(EEst, expo) / gamma
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shouldn't these have a @fastmath (and Float32)?

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Yes, I was just seeing what's required in order to make Enzyme work on this.

@fastmath q = DiffEqBase.value(max(inv(qmax), min(inv(qmin), qtmp)))
# TODO: Shouldn't this be in `step_accept_controller!` as for the PI controller?
integrator.qold = DiffEqBase.value(integrator.dt) / q
Expand Down Expand Up @@ -138,8 +138,8 @@ end
if iszero(EEst)
q = inv(qmax)
else
q11 = DiffEqBase.fastpow(EEst, float(beta1))
q = q11 / DiffEqBase.fastpow(qold, float(beta2))
q11 = ^(EEst, float(beta1))
q = q11 / ^(qold, float(beta2))
integrator.q11 = q11
@fastmath q = max(inv(qmax), min(inv(qmin), q / gamma))
end
Expand Down Expand Up @@ -412,7 +412,7 @@ end
fac = min(gamma, (1 + 2 * maxiters) * gamma / (iter + 2 * maxiters))
end
expo = 1 / (get_current_adaptive_order(alg, integrator.cache) + 1)
qtmp = DiffEqBase.fastpow(EEst, expo) / fac
qtmp = ^(EEst, expo) / fac
@fastmath q = DiffEqBase.value(max(inv(qmax), min(inv(qmin), qtmp)))
integrator.qold = q
end
Expand All @@ -426,7 +426,7 @@ function step_accept_controller!(integrator, controller::PredictiveController, a
if integrator.success_iter > 0
expo = 1 / (get_current_adaptive_order(alg, integrator.cache) + 1)
qgus = (integrator.dtacc / integrator.dt) *
DiffEqBase.fastpow((EEst^2) / integrator.erracc, expo)
^((EEst^2) / integrator.erracc, expo)
qgus = max(inv(qmax), min(inv(qmin), qgus / gamma))
qacc = max(q, qgus)
else
Expand Down
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