[Users] Geodesic: status on the multi-process (MPI) + AMR path (this week's users call)

[Steven R. Brandt]

Thanks for the update.

--Steve

On 9/24/2026 8:09 AM, Yuhua Li via Users wrote:
> Dear all,
>
> Following my presentation of Geodesic at the previous weekly users 
> call, I would
> like to give a brief status on the one item I flagged as an open 
> limitation:
> exercising the multi-process (MPI) configuration on a Carpet AMR 
> evolution.
>
> The single-process + AMR runs already reproduce the unigrid reference 
> orbits with
> the three samplers, with no lost particles and no NaNs. Since then I 
> have been
> working on the MPI path, but the work is still under test: current MPI 
> + AMR runs
> still show particle loss with non-finite metric samples, and I am 
> debugging the
> cause. I do not yet have a clean, reproducible result, so I have no 
> conclusion to
> report this week.
>
> In short: no new deliverable on the MPI + AMR path this week -- it is 
> still under
> verification. I will report a concrete result as soon as the 
> verification passes.
>
> I remain available to discuss, and as before I am most comfortable 
> continuing
> in writing. Any questions are welcome.
>
> Best regards,
> Yuhua Li
>
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