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5.4.2

Incomplete Level 0 LDLT Preconditioner. More...
#include <gmm_precond_ildlt.h>
Incomplete Level 0 LDLT Preconditioner.
For use with symmetric real or hermitian complex sparse matrices.
Notes: The idea under a concrete Preconditioner such as Incomplete Cholesky is to create a Preconditioner object to use in iterative methods.
Y. Renard : Transformed in LDLT for stability reason.
U=LT is stored in csr format. D is stored on the diagonal of U.
Definition at line 93 of file gmm_precond_ildlt.h.