KSP_DIVERGED_PC_FAILED#
It was not possible to build or use the requested preconditioner. This is usually due to a zero pivot in a factorization. It can also result from a failure in a subpreconditioner inside a nested preconditioner such as PCFIELDSPLIT.
Note#
Run with -ksp_error_if_not_converged to stop the program when the error is detected and print an error message with details.
See Also#
KSP: Linear System Solvers, KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
Level#
beginner
Location#
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages