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
