petsc-3.6.2 2015-10-02
   
MatCreateADA
Creates a matrix M=A^T D1 A + D2 where D1, D2 are diagonal 
Synopsis
#include "mat.h"  
PetscErrorCode MatCreateADA(Mat mat,Vec d1, Vec d2, Mat *J)
Collective on matrix
Input Parameters
|  | mat | - matrix of arbitrary type | 
|  | d1 | - A vector with diagonal elements of D1 | 
|  | d2 | - A vector | 
Output Parameters
J  -New matrix whose operations are defined in terms of mat, D1, and D2.
Notes
The user provides the input data and is responsible for destroying
this data after matrix J has been destroyed.
The operation MatMult(A,D2,D1) must be well defined.
Before calling the operation MatGetDiagonal(), the function
MatADAComputeDiagonal() must be called.  The matrices A and D1 must
be the same during calls to MatADAComputeDiagonal() and
MatGetDiagonal().
See Also
 MatCreate()
Level:developer
Location:src/tao/matrix/adamat.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages