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#39 Treatment of isolated nodes not resolved in AMG

Metadata

Property Value
Reported by Markus Blatt (markus@dr-blatt.de)
Reported at Oct 17, 2005 13:13
Type Bug Report
Version Git (pre2.4) [autotools]
Operating System Unspecified / All
Last edited by Markus Blatt (markus@dr-blatt.de)
Last edited at Oct 1, 2009 10:35
Closed by Markus Blatt (markus@dr-blatt.de)
Closed at Oct 1, 2009 10:35
Closed in version Unknown
Resolution Fixed
Comment Dirichlet boundaries are detected and dropped on coarser levels. Isolated nodes are aggregated and not skipped any more.
(Dropping them would decrease convergence)

Description

Currently the nodes are skipped on the coarser level. That means boundary values have no effect on the coarser level!

Either those nodes should appear in the coarse matrix or should be incorporated into the right hand side