[Dune] On-the-fly CG operator in ISTL

Sacconi, Andrea a.sacconi11 at imperial.ac.uk
Wed Sep 24 00:24:15 CEST 2014

Hi DUNErs,

I have a very quick question: I have a symmetric operator which does not have its matrix counterpart, since it is not assembled.
I need to invert it with an on-the-fly CG solver; what should I use from ISTL classes? Naturally, rhs and solution vectors have been declared as BlockVector 's.

Thanks in advance!

Andrea Sacconi
PhD student, Applied Mathematics
AMMP Section, Department of Mathematics, Imperial College London,
London SW7 2AZ, UK
a.sacconi11 at imperial.ac.uk

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