DelayDiffEq.jl
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SciML
Delay differential equation (DDE) solvers in Julia for the SciML scientific machine learning ecosystem. Covers neutral and retarded delay differential equations, and differential-algebraic equations.
**Describe the bug 🐞** When performing a GSA on the Serial function runs quicker than the parallel counterpart. I have included the same test with an ODE version to highlight...
**Describe the bug 🐞** Unexpected large memory usage proportional to `tspan[2]-tspan[1]` when solving a Delay Differential Equation with an oscillatory driving function. This might not be a bug, and may...
method ambiguity detection maybe can't cope with these weird types? ``` julia> DelayDiffEq.SciMLBase.SciMLSolution Union{SciMLSolution, DESolution} (alias for Union{SciMLBase.AbstractEnsembleSolution, SciMLBase.AbstractNoTimeSolution, SciMLBase.AbstractNoiseProcess, SciMLBase.AbstractTimeseriesSolution}) julia> DelayDiffEq.SciMLBase.DESolution Union{SciMLSolution, DESolution} (alias for Union{SciMLBase.AbstractEnsembleSolution, SciMLBase.AbstractNoTimeSolution, SciMLBase.AbstractNoiseProcess,...
I cannot resize a DDE problem using callbacks. I would appreciate if someone could check if they can replicate the error, please. MWE: ``` using DifferentialEquations # define simple DDE...
https://github.com/SciML/OrdinaryDiffEq.jl/pull/1762 but for DDEs.
Hello I was playing around with the DDE solver on some equations and consistently Dopri5 doesn't integrate properly. MWE : ```jl using DifferentialEquations using DelimitedFiles using PyPlot using Metrics #...
The following example shows that - similar to the example in the [tests](https://github.com/SciML/DelayDiffEq.jl/blob/master/test/interface/ad.jl) - ForwardDiff and finite differencing (here FiniteDifferences, in the tests FiniteDiff) produces similar gradients and Jacobians. However,...
Originally posted in [JuliaLang](https://discourse.julialang.org/t/speeding-up-dde-that-interpolates-past-value-at-3-indices/67970/3): Here’re two MWEs (one implemented with idxs and the other with in-place history function): ``` # Example 1 using DifferentialEquations; using BenchmarkTools; function computeNFkBFluxes!(nettFlux, concentration, delay,...
We use the interpolation interface for evaluating the history function but we don't support efficient evaluations for multiple time points yet.
Mackey and Glass plot 1 before:  Then:  That's non-stiff. And stiff quorum sensing before:  and after: 
