MatFactorSchurStatus

Records the current state of the dense Schur complement that is maintained by a factored matrix when a user has requested its formation with MatFactorSetSchurIS()

Synopsis

typedef enum {
  MAT_FACTOR_SCHUR_UNFACTORED,
  MAT_FACTOR_SCHUR_FACTORED,
  MAT_FACTOR_SCHUR_INVERTED
} MatFactorSchurStatus;

Values

• MAT_FACTOR_SCHUR_UNFACTORED - the Schur complement has been assembled but has not yet been factored or inverted

• MAT_FACTOR_SCHUR_FACTORED - the Schur complement has been factored (for example via dense LU) and can be used to solve via MatFactorSolveSchurComplement()

• MAT_FACTOR_SCHUR_INVERTED - the Schur complement has been explicitly inverted in place; subsequent solves multiply by the dense inverse

See Also

Matrices, Mat, MatFactorSetSchurIS(), MatFactorGetSchurComplement(), MatFactorRestoreSchurComplement(), MatFactorInvertSchurComplement(), MatFactorCreateSchurComplement()

Level

advanced

Location

include/petscmat.h

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