MatILUDTFactor
Performs a drop tolerance ILU factorization.
Synopsis
int MatILUDTFactor(Mat mat,double dt,int maxnz,IS row,IS col,Mat *fact)
Collective on Mat
Input Parameters
mat | - the matrix
|
dt | - the drop tolerance
|
maxnz | - the maximum number of nonzeros per row allowed
|
row | - row permutation
|
col | - column permutation
|
Output Parameters
fact -the factored matrix
Notes
Most users should employ the simplified SLES interface for linear solvers
instead of working directly with matrix algebra routines such as this.
See, e.g., SLESCreate().
Keywords
matrix, factor, LU, in-place
See Also
MatLUFactorSymbolic(), MatLUFactorNumeric(), MatCholeskyFactor()
Level:developer
Location:src/mat/interface/matrix.c
Matrix Index
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