petsc-3.10.5 2019-03-28
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# KSP_DIVERGED_NONSYMMETRIC

It appears the operator or preconditioner is not symmetric and this Krylov method (KSPCG, KSPMINRES, KSPCR) requires symmetry

### See Also

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