Errr.. you chave dropped caches? echo 3 > /proc/sys/vm/drop_caches
On Thu, 20 Jun 2019 at 15:59, Yann Jobic via users <users@lists.open-mpi.org> wrote: > Hi, > > Le 6/20/2019 à 3:31 PM, Noam Bernstein via users a écrit : > > > > > >> On Jun 20, 2019, at 4:44 AM, Charles A Taylor <chas...@ufl.edu > >> <mailto:chas...@ufl.edu>> wrote: > >> > >> This looks a lot like a problem I had with OpenMPI 3.1.2. I thought > >> the fix was landed in 4.0.0 but you might > >> want to check the code to be sure there wasn’t a regression in 4.1.x. > >> Most of our codes are still running > >> 3.1.2 so I haven’t built anything beyond 4.0.0 which definitely > >> included the fix. > > > > Unfortunately, 4.0.0 behaves the same. > > > > 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? > > Maybe it's only some data in cache memory, which is tagged as "used", > but the kernel could use it, if needed. Have you tried to use the whole > memory again with your code ? It sould work. > > Yann > > > > > Noam > > > > ____________ > > | > > | > > | > > *U.S. NAVAL* > > | > > | > > _*RESEARCH*_ > > | > > LABORATORY > > > > Noam Bernstein, Ph.D. > > Center for Materials Physics and Technology > > U.S. Naval Research Laboratory > > T +1 202 404 8628 F +1 202 404 7546 > > https://www.nrl.navy.mil > > > > > > _______________________________________________ > > users mailing list > > users@lists.open-mpi.org > > https://lists.open-mpi.org/mailman/listinfo/users > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users
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