Merge pull request #82 from SciML/fastpower

switch to FastPower

Author: ChrisRackauckas

Project.toml

@@ -8,6 +8,7 @@ DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 DelayDiffEq = "bcd4f6db-9728-5f36-b5f7-82caef46ccdb"
 DiffEqBase = "2b5f629d-d688-5b77-993f-72d75c75574e"
 DiffEqNoiseProcess = "77a26b50-5914-5dd7-bc55-306e6241c503"
+FastPower = "a4df4552-cc26-4903-aec0-212e50a0e84b"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Logging = "56ddb016-857b-54e1-b83d-db4d58db5568"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
@@ -24,6 +25,7 @@ DataStructures = "0.18"
 DelayDiffEq = "5.28.3"
 DiffEqBase = "6.122"
 DiffEqNoiseProcess = "5"
+FastPower = "1"
 LinearAlgebra = "1.9"
 Logging = "1.9"
 Random = "1.9"

src/StochasticDelayDiffEq.jl

@@ -13,6 +13,7 @@ using LinearAlgebra, StaticArrays
 using UnPack, DataStructures
 using Logging
 using RecursiveArrayTools
+import FastPower
 using DiffEqBase: AbstractSDDEProblem, AbstractSDDEAlgorithm, AbstractRODESolution,
                   AbstractRODEFunction, AbstractSDEIntegrator, AbstractSDDEIntegrator,
                   DEIntegrator, DEAlgorithm, AbstractRODEAlgorithm, AbstractSDEAlgorithm

src/stepsize_controllers.jl

@@ -1,8 +1,8 @@
 
 function stepsize_controller!(integrator::SDDEIntegrator, controller::PIController, alg)
-    integrator.q11 = DiffEqBase.value(DiffEqBase.fastpow(integrator.EEst, controller.beta1))
+    integrator.q11 = DiffEqBase.value(FastPower.fastpower(integrator.EEst, controller.beta1))
     integrator.q = DiffEqBase.value(integrator.q11 /
-                                    DiffEqBase.fastpow(integrator.qold, controller.beta2))
+                                    FastPower.fastpower(integrator.qold, controller.beta2))
     @fastmath integrator.q = DiffEqBase.value(max(inv(integrator.opts.qmax),
                                                   min(inv(integrator.opts.qmin),
                                                       integrator.q / integrator.opts.gamma)))