How to use sundials solvers in threads parpool?

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Felix
Felix 2025-4-28
评论： Torsten 2025-4-28
Is there a way to call sundials solvers directly in matlab, without simbiology and ode objects?
I am trying to run simulations in a threads based parallel pool, which apparently rules out the approach of using an ode object, since the function 'solve' seems to be not safe for parallel computing:
When I call solve in a threads based parfor loop, I receive the following error:
Error using matlab.ode.internal.DESolver/solveLoop (line 236)
The specified superclass 'matlab.ode.internal.SimulatorBase' contains a
parse error, cannot be found on MATLAB's search path, or is shadowed by
another file with the same name.
Any ideas?

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Arthur Goldsipe
Arthur Goldsipe 2025-4-28
I'm not aware of any way to do this. The only workaround I can think of is to use a process pool instead of a thread pool.
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Arthur Goldsipe
Arthur Goldsipe 2025-4-28
Ok, I just chatted with a coworker. I don't think we currently have any plans to expose SUNDIALS except via the ODE object. But we are aware of the need to support ODE objects with thread pools. So I would keep an eye on upcoming release notes to see if that support has been added. (And for future readers of this post, I current see that we don't yet have support as of R2024b or the R2025a prerelease. So check back in R2025b.)
If you have a reason for using SUNDIALS separate from the ODE objects, please reach out to me or Tech Support to privde more details, so that we can also consider that in a future release.
Torsten
Torsten 2025-4-28
@Arthur Goldsipe
Thank you very much for the information. I just saw here under MATLAB answers that the solver was asked for several times - that's why I posted the question.

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