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::BlockPreconditioner<VType,VType,Comm,Dune::SeqSSOR<MType,VType,
VType> > Smoother;
// typedef
Dune::BlockPreconditioner<VType,VType,Comm,Dune::SeqILU0<MType,VType,
VType> > Smoother;
It seems that there is some problems of memory loss with ILU0
preconditionner. Indeed we can see that the memory of computation is
continually
increasing, until the computation stops with the following error message :
Solve: M deltax^k = rslurmstepd: Job 936902 exceeded memory limit
(41146808 > 41058304), being killed
slurmstepd: Exceeded job memory limit
We can notice that this problem does not occur with SSOR as Preconditionner.
Have you ever met this issue ?
Best regards
M. El Ossmani
University of Pau
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