[petsc-dev] [petsc-users] Hypre running out of memory.

Jed Brown jedbrown at mcs.anl.gov
Thu Aug 22 13:20:34 CDT 2013

Barry Smith <bsmith at mcs.anl.gov> writes:

>    This issue comes up occasionally. Should we consider having a PETSc
>    option that uses setrlimit() to bound the virtual memory size the
>    process can have? Not a perfect solution but at least something,
>    maybe better than nothing?

Nah, just use mlock() so that PETSc's pages are always resident.  Let
mlock fail or the OS kill us when there's not enough memory.
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