Hi, I started a thread on disc...@mpich.org regarding some hanging canceled jobs that we were seeing:
https://lists.mpich.org/pipermail/discuss/2020-April/005910.html It turns out that there are some fairly strict rules about what types of functions (asynchronous-safe only) can be called from signal handlers, and MPI_Abort(), at least the mpich implementation of it, apparently does not fall into that category. I wonder if you have any comments on this. One possibility might be might be to just call "_exit" from PetscSignalHandlerDefault rather than PETSCABORT, not sure what other issues that would cause, however. Thanks, John