If the program is not completely successful, that is it terminates early due
to an error condition, we do not attempt to recover all the memory and
resources.
> On Jun 9, 2023, at 4:33 PM, neil liu wrote:
>
> Thanks a lot, Matt and Barry.
>
> Indeed, I found the original leak that
Thanks a lot, Matt and Barry.
Indeed, I found the original leak that will lead to something related to
DMGetWorkArray.
==15547== 50,000 bytes in 1 blocks are definitely lost in loss record 2,786
of 2,791
==15547==at 0x4C37135: malloc (vg_replace_malloc.c:381)
==15547==by 0x9BE4E43:
Jacob,
Thank you very much. I did use -Wall compiler option. Nevertheless, declaring
the variables in the smallest scope is a very good way to avoid uninitialized
usage of the variables.
Jiannan
From: Jacob Faibussowitsch
Sent: Friday, June 9, 2023 3:55 PM
To:
Barry,
Thank you for the very good advice. I think all the elements have been filled
but there may be some on the boundaries missed.
Jiannan
From: Barry Smith
Sent: Friday, June 9, 2023 3:35 PM
To: Tu, Jiannan
Cc: petsc-users@mcs.anl.gov ; Zhang, Hong
> I'll see what gcc complier options I should use to detect the use of declared
> variables that are not initialized
The flag you are looking for is -Wall. Please fix all the warnings that it may
raise.
Generally speaking, it is also much easier to ensure your variables are
initialized if
Yes they matter; they cannot be ignored.
The most likely cause is that you did not fill in certain entries in the
vector during the function evaluation routine you set with SNESSetFunction().
Another possibility is if you provided a right hand side vector to the SNES
(uncommon) that not
To avoid warninigs about “unconditional jump or move depends on uninitialized
value(s)”, I simplified my programs so that the warnings remain only through
SNESSolve(). Some of them are appended below. My question is if such warnings
really matter and affect the simulation results?
Thank you
On Fri, Jun 9, 2023 at 1:46 PM YuSh Lo wrote:
> Hi Barry,
>
> Is there any way to use the mapping generated by DMPlexDistribute along
> with AO?
>
For Plex, if you turn on
https://petsc.org/main/manualpages/DM/DMSetUseNatural/
before DMPlexDistribute(), it will compute and store a
Hi Barry,
Is there any way to use the mapping generated by DMPlexDistribute along
with AO?
Thanks,
Josh
Barry Smith 於 2023年6月9日 週五 上午10:42寫道：
>
> You might be looking for https://petsc.org/release/manualpages/AO/AO/#ao
>
>
> On Jun 9, 2023, at 11:02 AM, Mark Adams wrote:
>
> An IS is just
This are MPI objects PETSc creates in PetscInitialize(), for successful runs
they should all be removed in PETSc finalize, hence they should not appear as
valgrind links.
Are you sure PetscFinalize() is called and completes?
We'll need the exact PETSc version you are using to know
On Fri, Jun 9, 2023 at 12:04 PM neil liu 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
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
You might be looking for https://petsc.org/release/manualpages/AO/AO/#ao
> On Jun 9, 2023, at 11:02 AM, Mark Adams wrote:
>
> An IS is just an array of integers. We need your context.
> Is this question for sparse matrices? If so look at the documentation on the
> AIJ matrix construction
An IS is just an array of integers. We need your context.
Is this question for sparse matrices? If so look at the documentation on
the AIJ matrix construction and the global vertex numbering system.
Mark
On Thu, Jun 8, 2023 at 1:15 PM YuSh Lo wrote:
> Hi,
>
> I have an IS that contains some
Yeah --download-openblas-commit option is a modifier to --download-openblas -
so both options should be specified..
There is a proposal to automatically enable --download-openblas when
--download-openblas-commit (or other similar modifier) option is specified -
but its not in petsc yet..
On Fri, Jun 9, 2023 at 3:09 AM Nicolas Garcia Guzman
wrote:
> Hi, sorry I will attach the logs of a run using 17 restart iterations and
> one using 19. Testing using other values like 100, the true residual norm
> does diverge. Is there any recommendation for this case? The linear system
> comes
I managed to download a compatible openBLAS with conf
./configure --download-openblas
--download-openblas-commit='0b678b19dc03f2a999d6e038814c4c50b9640a4e'
--with-openmp --with-mpi=0 --with-shared-libraries=1 --with-mumps-serial=1
--download-mumps --download-metis --download-slepc
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