On Oct 27, 2010, at 1:38 AM, Lisandro Dalcin wrote: > 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...
I've considered it but have not seen a specific need. Do you have examples where it really matters? Barry > > > -- > Lisandro Dalcin > --------------- > CIMEC (INTEC/CONICET-UNL) > Predio CONICET-Santa Fe > Colectora RN 168 Km 472, Paraje El Pozo > Tel: +54-342-4511594 (ext 1011) > Tel/Fax: +54-342-4511169
