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 PC preconditioner 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#

src/ksp/pc/interface/precon.c


Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages