On 27 October 2010 05:07, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
> ? MatZeroRows(), MatZeroRowsIS() ?and MatZeroRowsLocal(), 
> MatZeroRowsLocalIS() ?now take optional x and b vectors. The b[index[]] is 
> set to diag*x[index[]] if the b and x are provided.
>

Have you considered the possibility of also passing different diag
values for each index? This would be handy for algebraic multigrid...


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Lisandro Dalcin
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