PCGetFailedReason#
Gets the reason a PCSetUp() failed or PC_NOERROR if it did not fail
Synopsis#
#include "petscksp.h" 
PetscErrorCode PCGetFailedReason(PC pc, PCFailedReason *reason)
Not Collective
Input Parameter#
- pc - the - PCpreconditioner context
Output Parameter#
- reason - the reason it failed 
Note#
After a call to KSPCheckDot() or  KSPCheckNorm() inside a KSPSolve() or a call to PCReduceFailedReason()
this is the maximum reason over all MPI processes in the PC communicator and hence logically collective.
Otherwise it returns the local value.
See Also#
KSP: Linear System Solvers, PC, PCCreate(), PCApply(), PCDestroy(), PCSetFailedReason(), PCFailedReason
Level#
advanced
Location#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages