EPSPowerShiftType

The type of shift used in the Power iteration solver.

Synopsis

typedef enum { EPS_POWER_SHIFT_CONSTANT,
               EPS_POWER_SHIFT_RAYLEIGH,
               EPS_POWER_SHIFT_WILKINSON } EPSPowerShiftType;

Values

• EPS_POWER_SHIFT_CONSTANT - constant shift

• EPS_POWER_SHIFT_RAYLEIGH - variable shift using Rayleigh quotient

• EPS_POWER_SHIFT_WILKINSON - variable shift using Wilkinson’s approach

Note

Details of the three variants can be found in [Hernandez et al., 2005].

References

[Her05]

V. Hernandez, J. E. Roman, A. Tomas, and V. Vidal. Single vector iteration methods in SLEPc. Technical Report STR-2, Universitat Politècnica de València, 2005. URL: https://slepc.upv.es/documentation.

See Also

EPS: Eigenvalue Problem Solver, EPSPowerSetShiftType(), EPSPowerGetShiftType()

Level

advanced

Location

include/slepceps.h

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