[petsc-dev] handling user domain errors

[Jed Brown]

Barry Smith <bsmith at mcs.anl.gov> writes:
>    1) This simplifies the needed code since we won't need to put
>    checks all over the place on returns about failure nor do we need
>    to worry about propagating errors from one process to another
>    (since the Nan/Inf get moved by the MPI_Allreduce()).

My concern is that -fp_trap will become a lot less useful.

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