Linear Solvers - SLES: Examples
The Scalable Linear Equations Solvers (SLES)
component provides an easy-to-use interface to the combination of
a Krylov subspace iterative method and a preconditioner (in the
KSP and
PC
components, respectively) or a sequential direct solver.
SLES users can set various Krylov
and preconditioning options at runtime via the options database (e.g.,
-pc_type jacobi -ksp_type gmres
).
SLES users can also set KSP and PC options directly in application
codes by first extracting the KSP and/or PC context from the SLES context via
SLESGetKSP()/
SLESGetPC()
and then directly calling the KSP and PC routines (e.g.,
KSPSetType()/
PCSetType()
).
Both KSP and PC components can be used directly to create and
destroy solvers; this is not needed for users but
is intended for library developers.
interface/
pc/
ksp/
examples/
utils/
esi/
slesimpl.h
../../include/petscsles.h
makefile