PCGALERKIN#
Build (part of) a preconditioner by P S R (where P is often R^T)
Note#
Use
`PCGalerkinSetRestriction`(pc,R) and/or `PCGalerkinSetInterpolation`(pc,P)
`PCGalerkinGetKSP`(pc,&ksp);
`KSPSetOperators`(ksp,A,....)
...
Developer Notes#
If KSPSetOperators() has not been called on the inner KSP then PCGALERKIN could use MatRARt() or MatPtAP() to compute
the operators automatically.
Should there be a prefix for the inner KSP?
There is no KSPSetFromOptions_Galerkin() that calls KSPSetFromOptions() on the inner KSP
See Also#
KSP: Linear System Solvers, PCCreate(), PCSetType(), PCType, PC,
PCSHELL, PCKSP, PCGalerkinSetRestriction(), PCGalerkinSetInterpolation(), PCGalerkinGetKSP()
Level#
intermediate
Location#
src/ksp/pc/impls/galerkin/galerkin.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages