gf_precond_get — get informations related to the preconditioner
vec PV=gf_precond_get(P,'mult', vec V) vec tPV=gf_precond_get(P,'tmult', vec V) string S=gf_precond_get(P,'type') ivec gf_precond_get('size') int gf_precond_get(P,'is_complex')string S=gf_precond_get(P,'info')
gf_precond_get(P,'mult',vec V) Apply the preconditioner to the supplied vector.
gf_precond_get(P,'tmult',vec V) Apply the transposed preconditioner to the supplied vector.
gf_precond_get(P,'type') Return a string describing the type of the preconditioner ('ilu', 'ildlt',..).
gf_precond_get(P,'size') Return the dimensions of the preconditioner.
gf_precond_get(P,'is_complex') Return 1 if the preconditioner stores complex values.
gf_precond_get(P,'info') Return a short informative string about the preconditioner.