KSPGetOperatorsSet#

Determines if the matrix associated with the linear system and possibly a different one associated with the preconditioner have been set in the KSP.

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPGetOperatorsSet(KSP ksp, PetscBool *mat, PetscBool *pmat)

Not Collective, though the results on all processes should be the same

Input Parameter#

  • pc - the KSP context

Output Parameters#

  • mat - the matrix associated with the linear system was set

  • pmat - matrix associated with the preconditioner was set, usually the same as mat

Note#

This routine exists because if you call KSPGetOperators() on a KSP that does not yet have operators they are automatically created in the call.

See Also#

KSP, PCSetOperators(), KSPGetOperators(), KSPSetOperators(), PCGetOperators(), PCGetOperatorsSet()

Level#

intermediate

Location#

src/ksp/ksp/interface/itcreate.c

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Index of all KSP routines
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Index of all manual pages