There is a

DEAL_II_ALLOW_AUTODETECTION = ON|OFF

option, which probably disables all auto detection.

best
praveen

On Thu, Dec 9, 2021 at 11:43 PM Michał Wichrowski <[email protected]>
wrote:

> Dear all,
> While I was setting up deal.II compilation on another machine I got stuck
> for weeks: it was crashing when running with MPI. It turned out that
> Deal.II managed to auto-detect PETSc (I did not turn it on, I am not using
> it), which was causing issues with the initialization of any MPI program.
>
> May I suggest changing Deal.II configuration script to disable
> autodetection of PETSc by default and do it only if the user explicitly
> asked for it? To be honest, I had a bad experience with it and I haven't
> found PETSc superior to Trilinos in any application.
>
> Best,
> Michał
>
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