PCNN preconditioner

Andreas Grassl Andreas.Grassl at student.uibk.ac.at
Thu Feb 26 10:12:44 CST 2009


I'm working with a FE-Software where I get out the element stiffness
matrices and the element-node correspondency to setup the stiffness
matrix for solving with PETSc.

Currently this is working fine for the seqaij matrix type and connected
solvers. Now I want to Implement the PCNN preconditioner.

Does anybody have any simple examples with this preconditioner?

Thank you in advance


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