[petsc-users] Inquiry about the definitely lost memory

Matthew Knepley knepley at gmail.com
Fri Jun 9 11:37:55 CDT 2023


On Fri, Jun 9, 2023 at 12:04 PM neil liu <liufield at gmail.com> wrote:

> Dear Petsc developers,
>
> I am using valgrind to check the memory leak. It shows,
> [image: image.png]
> Finally, I found that DMPlexrestoretrasitiveclosure can resolve this
> memory leak.
>
> My question is from the above screen shot, it seems the leak is related to
> MPI. How can I relate that reminder to DMPlexrestoretrasitiveclosure ?
>

This is a knock-on leak related to the first one. You will also see the
original leak. Since it is inside DM, it will come from DMGetWorkArray().

  THanks,

    Matt


> Thanks,
>
> Xiaodong
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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