petsc-3.12.4 2020-02-04
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# PCNONE

This is used when you wish to employ a nonpreconditioned Krylov method.

### Notes

This is implemented by a VecCopy()

### See Also

PCCreate(), PCSetType(), PCType (for list of available types), PC

### Level

beginner

### Location

src/ksp/pc/impls/none/none.c

### Examples

src/ksp/ksp/examples/tutorials/ex7.c.html
src/ksp/ksp/examples/tutorials/ex27.c.html
src/ksp/ksp/examples/tutorials/ex7f.F90.html
src/snes/examples/tutorials/ex1.c.html
src/snes/examples/tutorials/ex1f.F90.html
src/ts/examples/tutorials/ex20opt_p.c.html
src/ts/examples/tutorials/ex20opt_ic.c.html
src/tao/unconstrained/examples/tutorials/eptorsion2.c.html
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages