PETSc version 3.17.5

MatFactorFactorizeSchurComplement

Factorize the Schur complement matrix computed during the factorization step

#include "petscmat.h" 
PetscErrorCode MatFactorFactorizeSchurComplement(Mat F)

Logically Collective on Mat

- the factored matrix obtained by calling MatGetFactor()

Must be called after MatFactorSetSchurIS().

advanced