PETSc version 3.15.5
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# KSP_DIVERGED_DTOL

norm(r) >= dtol*norm(b)

See KSPNormType and KSPSetNormType() for possible norms that may be used. By default for left preconditioning it is the 2-norm of the preconditioned residual, and the 2-norm of the residual for right preconditioning

### See Also

KSP_CONVERGED_ATOL, KSP_DIVERGED_RTOL, KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()

### Level

beginner

### Location

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