STGetMatStructure#

Gets the internal MatStructure attribute to indicate which is the relation of the sparsity pattern of the matrices.

Synopsis#

#include "slepcst.h" 
PetscErrorCode STGetMatStructure(ST st,MatStructure *str)

Not Collective

Input Parameters#

  • st - the spectral transformation context

Output Parameters#

  • str - either SAME_NONZERO_PATTERN, DIFFERENT_NONZERO_PATTERN, SUBSET_NONZERO_PATTERN, or UNKNOWN_NONZERO_PATTERN

See Also#

STSetMatStructure(), STSetMatrices(), MatAXPY()

Level#

advanced

Location#

src/sys/classes/st/interface/stset.c

Examples#

src/pep/tutorials/ex40.c

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