[bug#50080] Commit updating SUNDIALS to 6.1.1.

[Ludovic Courtès]

Hi Paul,

"Paul A. Patience" <paul@apatience.com> skribis:

> I see that you have updated SUNDIALS to 6.1.1.
> When last I updated it (to 5.7.0) [1], I encountered issues in 32-bit vs 
> 64-bit
> indices, which I see no mention of in your commit.
> There were also some other issues which I mentioned in my patch series'
> commit messages.
>
> Do you know if the update to 6.1.1 renders the issues extraneous?

Thanks for bringing it up, I had overlooked this patch of yours—my
apologies for that.  I don’t know if the new version defaults to 64-bit
or 32-bit indices.

> A good test would be adding SUNDIALS as a propagated input to
> deal.II.

I tried that; this leads to a build failure apparently due to changes in
the API of SUNDIALS:

--8<---------------cut here---------------start------------->8---
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc: In 
instantiation of ‘void dealii::SUNDIALS::ARKode<VectorType>::rese
t(double, double, const VectorType&) [with VectorType = 
dealii::Vector<double>]’:
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc:838:18:
   required from here
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc:635:31:
 error: too few arguments to function ‘void* ARKStepCreate(ARK
RhsFn, ARKRhsFn, realtype, N_Vector, SUNContext)’
  635 |     arkode_mem = ARKStepCreate(
      |                  ~~~~~~~~~~~~~^
  636 |       explicit_function ? &t_arkode_explicit_function<VectorType> : 
nullptr,
      |       
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  637 |       implicit_function ? &t_arkode_implicit_function<VectorType> : 
nullptr,
      |       
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  638 |       current_time,
      |       ~~~~~~~~~~~~~            
  639 |       initial_condition_nvector);
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from 
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc:45:
/gnu/store/vyl9wll72m9jqc21idxrxnmb7rm0lkf7-sundials-6.1.1/include/arkode/arkode_arkstep.h:112:23:
 note: declared here
  112 | SUNDIALS_EXPORT void* ARKStepCreate(ARKRhsFn fe, ARKRhsFn fi,
      |                       ^~~~~~~~~~~~~
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc: In 
instantiation of ‘void dealii::SUNDIALS::ARKode<VectorType>::setu
p_system_solver(const VectorType&) [with VectorType = dealii::Vector<double>]’:
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc:838:18:
   required from here
/tmp/guix-build-dealii-9.3.2.drv-0/dealii-9.3.2/source/sundials/arkode.cc:710:30:
 error: too few arguments to function ‘_generic_SUNLinearSolve
r* SUNLinSol_SPGMR(N_Vector, int, int, SUNContext)’
  710 |               SUNLinSol_SPGMR(y_template,
      |               ~~~~~~~~~~~~~~~^~~~~~~~~~~~
  711 |                               PREC_NONE,
      |                               ~~~~~~~~~~
  712 |                               0 /*krylov subvectors, 0 uses default*/);
      |                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--8<---------------cut here---------------end--------------->8---

I’m probably less familiar than you with these two packages; what would
you suggest?

Please keep me Cc’d and hopefully we can address these issues for good
this time!

Thanks,
Ludo’.