MatCholeskyInfo

 Data based into the matrix Cholesky factorization routines

Synopsis

typedef struct {
  PetscReal     fill;    /* expected fill; nonzeros in factored matrix/nonzeros in original matrix */
  PetscReal     damping; /* scaling of identity added to matrix to prevent zero pivots */
  PetscReal     pivotinblocks;  /* for BAIJ and SBAIJ matrices pivot in factorization on blocks, default 1.0 
                                   factorization may be faster if do not pivot */
} MatCholeskyInfo;
In Fortran these are simply double precision arrays of size MAT_CHOLESKYINFO_SIZE

Notes: These are not usually directly used by users, instead use the PC type of Cholesky All entries are double precision.

See Also

MatCholeskyFactorSymbolic(), MatLUInfo, MatILUInfo

Level:developer
Location:src/mat/../../include/petscmat.h
Index of all Mat routines
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