Do you have any chance to collect stack traces of all the MPI processes? --Junchao Zhang
On Fri, Jul 18, 2025 at 12:20 PM Edoardo alinovi <edoardo.alin...@gmail.com> wrote: > Hello Petsc friends, > > Hope you are all doing well. > > Today I was doing a simulation (27Mln cell on 64 cores) and I came across > an issue. Indeed, I am deadlocking somewhere in *MatMPIAIJSetPreallocation. > D*o you have any clue about the reason for this? Any suggestions to track > this down? > > Many thanks, > > Edo >