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fix complex adaptive norms on GPU #347

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Oct 7, 2019
Merged

fix complex adaptive norms on GPU #347

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72b06de
fix complex adaptive norms on GPU
ChrisRackauckas Oct 7, 2019
e80cb01
add gpu complex number adaptivity test
ChrisRackauckas Oct 7, 2019
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10 changes: 5 additions & 5 deletions src/common_defaults.jl
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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
@inline UNITLESS_ABS2(x) = Real(abs2(x)/(typeof(x)(one(x))*typeof(x)(one(x))))
@inline UNITLESS_ABS2(x) = real(abs2(x)/(typeof(x)(one(x))*typeof(x)(one(x))))

@inline ODE_DEFAULT_NORM(u::Union{AbstractFloat,Complex},t) = abs(u)
@inline ODE_DEFAULT_NORM(u::Array{T},t) where T<:Union{AbstractFloat,Complex} =
@fastmath sqrt(sum(abs2,u) / length(u))
@fastmath sqrt(real(sum(abs2,u)) / length(u))
@inline ODE_DEFAULT_NORM(u::RecursiveArrayTools.AbstractVectorOfArray,t) =
sum(sqrt(sum(UNITLESS_ABS2,_u) / length(_u)) for _u in u.u)
@inline ODE_DEFAULT_NORM(u::AbstractArray,t) = sqrt(sum(UNITLESS_ABS2,u) / length(u))
@inline ODE_DEFAULT_NORM(u::AbstractArray{T,N},t) where {T<:AbstractArray,N} = sqrt(sum(x->ODE_DEFAULT_NORM(x[1],x[2]),zip(u,t)) / length(u))
sum(sqrt(real(sum(UNITLESS_ABS2,_u)) / length(_u)) for _u in u.u)
@inline ODE_DEFAULT_NORM(u::AbstractArray,t) = sqrt(real(sum(UNITLESS_ABS2,u)) / length(u))
@inline ODE_DEFAULT_NORM(u::AbstractArray{T,N},t) where {T<:AbstractArray,N} = sqrt(real(sum(x->ODE_DEFAULT_NORM(x[1],x[2]),zip(u,t))) / length(u))
@inline ODE_DEFAULT_NORM(u,t) = norm(u)

@inline ODE_DEFAULT_ISOUTOFDOMAIN(u,p,t) = false
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6 changes: 6 additions & 0 deletions test/gpu/simple_gpu.jl
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Expand Up @@ -55,3 +55,9 @@ u0 = [1.0;0.0;0.0]
tspan = (0.0,100.0)
prob_num = ODEProblem(ff2,u0,tspan)
sol = solve(prob_num,Rosenbrock23(linsolve=LinSolveGPUFactorize()))

# Complex Numbers Adaptivity DifferentialEquations.jl#460
f_complex(u,nothing,t) = 1/2 .*u
u0 = cu(rand(32,32).+ 1im*rand(32,32));
prob = ODEProblem(f_complex,u0,(0.0,1.0))
sol = solve(prob,Tsit5())