Re: [petsc-users] Create csr matrix

On Dec 12, 2010, at 2:41 PM, Jakub Pola wrote:

Thanks,

Is there also so easy way to extract those arrays from already created matrix?

Not particularly because we do not like the idea of directly manipulating the storage details of a particular sparse matrix type. But you can use MatGetRowIJ()/MatRestoreRowIJ() and MatGetArray() if you really want to.

I created matrix A with function: MatCreateSeqAIJWithArrays(PETSC_COMM_SELF, n_rows, n_rows, r_idx, c_idx, vals, A);

Now I would like to extract all tables from matrix A;

What is a "table" of a matrix A? Barry

Dnia 2010-12-12, nie o godzinie 14:30 -0600, Barry Smith pisze:

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MatCreateSeqAIJWithArrays