Hi, the iteration numbers look like hypre is not used. I get similar high iteration numbers with a preconditioner like "./step-40 -pc_type bjacobi".
Are you running in debug mode? Can you run with "./step -log_summary" and look if the output says something about HYPRE (like in the blob after "Option Table entries")? On Wed, Feb 16, 2011 at 10:54 AM, Svyatoslav Gladkov <[email protected]> wrote: > Dear dealers, > > I just wanted to try the new technology for distributed meshes under > deal.II 7.0.0 thus I've complied all the stuff with p4est and PETSC > with Hypre. But the results I get from computation are quite > different from the ones shown in tutorial (number of iterations for > linear solver is much much larger than reference values). Output is > below. Any clue where might be a problem (I run it with 1 or 4 cores > but the results are more or less the same)? > > Regards, > Slawa > > Cycle 0: > Number of active cells: 1024 > Number of degrees of freedom: 4225 > Solved in 99 iterations. > > Cycle 1: > Number of active cells: 1966 > Number of degrees of freedom: 8453 > Solved in 154 iterations. > > Cycle 2: > Number of active cells: 3676 > Number of degrees of freedom: 16211 > Solved in 216 iterations. > > Cycle 3: > Number of active cells: 7114 > Number of degrees of freedom: 31743 > Solved in 321 iterations. > > Cycle 4: > Number of active cells: 13846 > Number of degrees of freedom: 62405 > Solved in 467 iterations. > > Cycle 5: > Number of active cells: 27646 > Number of degrees of freedom: 125401 > Solved in 643 iterations. > > Cycle 6: > Number of active cells: 55726 > Number of degrees of freedom: 253931 > Solved in 956 iterations. > > Cycle 7: > Number of active cells: 115618 > Number of degrees of freedom: 527203 > Solved in 1319 iterations. > > _______________________________________________ > dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii > -- Timo Heister http://num.math.uni-goettingen.de/~heister _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
