The kernel using memory is why I suggested running slabtop, to see the kernel slab allocations. Clearly I Was barking up a wrong tree there...
On Thu, 20 Jun 2019 at 14:41, Jeff Squyres (jsquyres) via users < users@lists.open-mpi.org> wrote: > On Jun 20, 2019, at 9:31 AM, Noam Bernstein via users < > users@lists.open-mpi.org> wrote: > > > > One thing that I’m wondering if anyone familiar with the internals can > explain is how you get a memory leak that isn’t freed when then program > ends? Doesn’t that suggest that it’s something lower level, like maybe a > kernel issue? > > If "top" doesn't show processes eating up the memory, and killing > processes (e.g., MPI processes) doesn't give you memory back, then it's > likely that something in the kernel is leaking memory. > > Have you tried the latest version of UCX -- including their kernel drivers > -- from Mellanox (vs. inbox/CentOS)? > > -- > Jeff Squyres > jsquy...@cisco.com > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users
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