PETSc version 3.16.5
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# KSP_NORM_PRECONDITIONED

Compute the norm of the preconditioned residual B*(b - A*x), if left preconditioning, and pass that to the convergence test routine.

### See Also

KSPNormType, KSPSetNormType(), KSP_NORM_NONE, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL, KSPSetConvergenceTest()

### Level

advanced

### Location

src/ksp/ksp/guess/../../../../include/petscksp.h
Index of all KSP routines
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Index of all manual pages