PCSVD

Use pseudo inverse defined by SVD of operator

Options Database Keys

• -pc_svd_zero_sing - Singular values smaller than this are treated as zero

• -pc_svd_monitor - Print information on the extreme singular values of the operator

Developer Note

This implementation automatically creates a redundant copy of the matrix on each process and uses a sequential SVD solve. Why does it do this instead of using the composable PCREDUNDANT object?

See Also

KSP: Linear System Solvers, PCCreate(), PCSetType(), PCType, PC, PCREDUNDANT

Level

advanced

Location

src/ksp/pc/impls/svd/svd.c

---

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages