[petsc-users] updating parallel matrix

[Evan Um]

Hi PETSC users,

I want to solve a number of matrix-vector equations. In each equation, the
matrix has different values, but the sparsity pattern is unchanged. I can
destroy a current matrix and create a new matrix. However, is there a more
efficient way to do this task? Is there any code example for this kind of
problem? In advance, thank you very much for your comments.

Regards,
Evan
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