STSinvertSetShiftMat

Sets a flag to indicate that the matrix is being shifted at STSetUp() and unshifted at the end of the computations.

Synopsis

#include "slepcst.h" 
int STSinvertSetShiftMat(ST st)
Collective on ST

Input Parameters

st -the spectral transformation context

Options Database Key

-st_sinvert_shift_mat -Activates STSinvertSetShiftMat()

Note

By default, the matrix is not shifted explicitly. Instead, the solver works with an implicit shell matrix that represents the shifted matrix, in which case only the Jacobi preconditioning is available for the linear solves performed in each iteration of the eigensolver.

See Also

STSetOperators()

Level:intermediate
Index of all ST routines
Table of Contents for all manual pages
Index of all manual pages