[bddcml-users] bddcml : example ?

[Jakub Sistek]

Perfect, thanks for letting me know. It's nice it works for you.

May I know what type of problems you aim to solve? If these are somewhat 
non-standard and the current BDDCML set-up would not work well for 
those, I would be happy to look into it closer together to see what 
might be done in order to make BDDCML work efficiently for the target 
application.
Feel free to let me know.

Best regards

Jakub


On 06/25/2013 05:13 PM, bob wrote:
>
> Thank you, it works (Mumps 4.10.0 (unpatched) + ParMETIS 3.2.0 + Metis 
> 4.0.3).
>
>
>
> poisson_on_cube 40 3 2
>
>
>
>  ===========Possion on cube solver===========
> | Solves problem                             |
> |          -Îu = 1 on Ω = [0,1]^3,           |
> |            u = 0 on Î,                     |
> | using FEM and the BDDCML solver.           |
>  ============================================
>  Characteristics of the problem :
>    number of processors            nproc =          27
>    number of dimensions             ndim =           3
>    mesh dimension                meshdim =           3
>    number of elements global       nelem =     1728000
>    number of subdomains             nsub =          27
>    number of nodes global           nnod =     1771561
>    number of DOF                    ndof =     1771561
>    number of levels              nlevels =           2
>    number of subdomains in levels        = 27           1
>  Characteristics of iterational process:
>    tolerance of error                tol = 1.000000000000000E-006
>    maximum number of iterations    maxit =         500
>    number of incresing residual ndecrmax =          50
>    using recycling of Krylov method ?                1
> Initializing BDDCML ...
> Initializing BDDCML done.
> Loading data ...
> Loading data done.
> Preconditioner set-up ...
> Preconditioner set-up done.
> Calling Krylov method ...
> Krylov method done.
>  Output of PCG: ==============
>  Number of iterations:       9
>  Convergence reason:   0
>  Condition number:       2.761
>  =============================
> Finalizing BDDCML ...
> Finalizing BDDCML done.
>  Solution properties========
>  L_2 norm:      0.0201653452
>  L_inf norm:    0.0562187802
>  R^n norm:     32.8502860859
>  ===========================
>