[petsc-users] DMGetMatrix segfault

[Jed Brown]

On Tue, Jan 17, 2012 at 01:44, Klaij, Christiaan <C.Klaij at marin.nl> wrote:

>  DMCompositeCreate(PETSC_COMM_WORLD,&pack);
>  DMCompositeAddDM(pack,da0);
>  DMCompositeAddDM(pack,da1);
>

Add this one line:

DMSetUp(pack);


I'll update petsc-dev to call DMSetUp() automatically when it is needed.


>  DMGetMatrix(pack,MATNEST,&A);
>  MatView(A,PETSC_VIEWER_DEFAULT);
>
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