Options for factorization and selected inversion
Several parameters need to be specified to configure the different routines of PSelInv depending on the nature of the matrix and of which selected elements are desired.
This is done by setting the relevant fields in the SuperLUOptions and PSelInvOptions structures.
The options for the factorization include:
- ColPerm controls the column permutation strategy.
- RowPerm controls the row permutation strategy.
- Equil controls the system equilibration strategy.
- Symmetric specifies whether the matrix is symmetric or unsymmetric.
- Transpose specifies whether the original matrix or the transposed matrix needs to be factored. This is only relevant in the unsymmetric case. Indeed, when the transposed matrix is factored, then selected elements PLACEHOLDER can be retrieved.
The extra options for the selected inversion is:
Related structures and subroutines
SuperLUOptions
A thin interface for passing parameters to set the SuperLU options.
PSelInvOptions
A thin interface for passing parameters to set the PSelInv options.
1.8.6
