see KSPSolve() -
Notes: The operator and the preconditioner must be symmetric for this method. The
preconditioner must be POSITIVE-DEFINITE and the operator POSITIVE-SEMIDEFINITE
References
Methods of Conjugate Gradients for Solving Linear Systems, Magnus R. Hestenes and Eduard Stiefel,
Journal of Research of the National Bureau of Standards Vol. 49, No. 6, December 1952 Research Paper 2379
pp. 409--436.
See Also
KSPCreate(), KSPSetType(), KSPType (for list of available types), KSP, KSPCG
Level:beginner
Location:src/ksp/ksp/impls/cr/cr.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages