petsc-3.10.5 2019-03-28
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# SNESNormSchedule

Frequency with which the norm is computed

### Synopsis

    typedef enum {SNES_NORM_DEFAULT            = -1,
                  SNES_NORM_NONE               =  0,
                  SNES_NORM_ALWAYS             =  1,
                  SNES_NORM_INITIAL_ONLY       =  2,
                  SNES_NORM_FINAL_ONLY         =  3,
                  SNES_NORM_INITIAL_FINAL_ONLY =  4} SNESNormSchedule;

Support for these is highly dependent on the solver.

### Notes

This is primarily used to turn off extra norm and function computation when the solvers are composed.

### See Also

SNESSolve(), SNESGetConvergedReason(), KSPSetNormType(),
KSPSetConvergenceTest(), KSPSetPCSide()

### Level

advanced

### Location

src/snes/../../include/petscsnes.h
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages