Late to the game, but I did not check the list for some time.
On Wed, Feb 08, 2017 at 02:57:49PM +0100, Timo Koch wrote:
> if I try running the pamgtest
> (dune-istl//dune/istl/paamg/test/pamgtest) with valgrind I get
>
> very similar memory leaks. I can't confirm, though, that they are different
Hi Bernd,
I reply instead of my colleague Mustapha.
1- Yes it is the result of a sequential run.
2- Yes it is the result of the unmodified co2 test
(test/porousmedia/co2/implicit/test_ccco2.cc). We have only increased
the duration of the simulation (Tend=1e6 to 1e7s) to have a better sight
o
Hi Mustapha,
if I try running the pamgtest
(dune-istl//dune/istl/paamg/test/pamgtest) with valgrind I get
very similar memory leaks. I can't confirm, though, that they are
different depending on the smoother (ILU0, SSOR)
of the AMG preconditioner. The test is a good starting point for a
m
Hi Mustapha,
as Christoph says, we should try to make the example as minimal as possible.
On 02/08/2017 09:56 AM, Mustapha El Ossmani wrote:
We have run a simple test (co2 model in DUMUX)in some iterations with
valgrind and we obtained the messages that can be found in the
enclosed filewhich
Hi Martin,
Thank you for your reply,
Yes, I did this but I have always the same problem.
@+
Mustapha
Le 08/02/2017 à 10:20, Martin Schneider a écrit :
Hi Mustapha,
did you try to also change the CoarsenCriterion? You could try to
replace "Dune::Amg::SymmetricCriterion" with
"Dune::Amg:
Hi Mustapha,
did you try to also change the CoarsenCriterion? You could try to
replace "Dune::Amg::SymmetricCriterion" with
"Dune::Amg::UnSymmetricCriterion". There might be some reason why a
symmetric preconditioner SSOR
is used for for the case of a symmetric CoarsenCriterion.
Regards,
Mar
Hi Christoph,
Thank you for your reply. Here are some precisions
* Do see this problem only in parallel or also in sequential code? Only
with AMG or also with GMRES and ILU?
We have this problem in both case (sequential and parrallel code)
*only*when we compile with *MPI* and only with *AMG*
Hi Mustapha,
I have never seen such problems but I am no solver expert. What you can do:
* Do see this problem only in parallel or also in sequential code? Only with
AMG or also with GMRES and ILU?
* Reduce the problem as much as you can. The best would be a minimal piece of
software that only d
Dear DuMu^X developers,
We are performing parallel computation with AMG solver. Due to problems
of convergence in the newton's method, in amgproperties.hh we set the
Preconditioner from Dune::SeqSSOR to Dune::SeqILU0 :
typedef
Dune::BlockPreconditionerVType> > Smoother;
// typedef
Dune
