issue with ODE backend

[rveltz]

Hi

Trying https://github.com/ChrisRackauckas/DifferentialEquations.jl/blob/master/examples/Calling%20External%20Solvers%20-%20ODEjl%20and%20ODEInterface.ipynb to call ode45, I get the following error:

sol =solve(prob::ODEProblem,tspan,Δt=Δt,alg=:ode45) [DifferentialEquations.jl] Initializing backend: ODEJL ERROR: UndefVarError: ExplicitODE not defined in #solve#461(::Array{Any,1}, ::Function, ::DifferentialEquations.ODEProblem{Array{Float64,1},Float64}, ::Array{Int64,1}) at /Users/rveltz/.julia/v0.5/DifferentialEquations/src/ode/ode_solve.jl:195 in (::DifferentialEquations.#kw##solve)(::Array{Any,1}, ::DifferentialEquations.#solve, ::DifferentialEquations.ODEProblem{Array{Float64,1},Float64}, ::Array{Int64,1}) at ./<missing>:0

Do you have any idea what is wrong?

versioninfo() Julia Version 0.5.0-rc0+0 Commit 0030eec* (2016-07-26 20:22 UTC) Platform Info: System: Darwin (x86_64-apple-darwin13.4.0) CPU: Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz WORD_SIZE: 64 BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell) LAPACK: libopenblas64_ LIBM: libopenlibm LLVM: libLLVM-3.7.1 (ORCJIT, haswell)

Pkg.status("DifferentialEquations")

• DifferentialEquations 0.2.1+ master

[ChrisRackauckas]

As noted in the docs, you have to be on the JuliaODE repository's version of ODE.jl, at least until pwl's PR goes through. It saying ExplicitODE not defined is telling me you're on JuliaLang/ODE.jl which doesn't have that part defined.

BTW, you might want to check out the benchmarks I just ran for nonstiff methods. ODE.jl's methods don't fair too well. For pure speed go with ODEInterface algs. For slightly less speed but lower error go with the DifferentialEquations.jl algs. But I haven't found a case where ode45 performs well...

[rveltz]

Thank you!

[ChrisRackauckas]

No problem. Hopefully the standard branch will be able to be used soon.