OPM/opm-upscaling — pull request #4 by blattms (2012-09-26 10:18:22+00:00)
Title: Amg opt march2012

These patches achieve convergence for the upscaling example given to me. (They are connected and based on the patches to opm-porsol).

The main changes are:
1. Correct treatment of Dirichlet boundary conditions in the code before calling AMG.
2. Made more settings of AMG adjustable, namely maximum number of iterations, the factor used to
scale the prolongation and the number of smoothing steps to use,
3. Made SeqOverlappingSchwarz available as a smoother that is essentially a block Gauss-Seidel
method where the blocks are defined by the aggregates.