PETSc version 3.16.5
Fix/Edit manual page

# 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)

Logically Collective on PC

### Input Parameter

| pc | - the preconditioner context

### Output Parameter

| reason | - the reason it failed

Notes: This is the maximum over reason over all ranks in the PC communicator. It is only valid after a call KSPCheckDot() or KSPCheckNorm() inside a KSPSolve(). It is not valid immediately after a PCSetUp() or PCApply(), then use PCGetFailedReasonRank()

### See Also

PCCreate(), PCApply(), PCDestroy(), PCGetFailedReasonRank(), PCSetFailedReason()

### Level

advanced

### Location

src/ksp/pc/interface/precon.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages