petsc-3.13.6 2020-09-29
MatComputeOperatorTranspose
Computes the explicit matrix representation of a give matrix that can apply MatMultTranspose()
Synopsis
#include "petscmat.h"
PetscErrorCode MatComputeOperatorTranspose(Mat inmat,MatType mattype,Mat *mat)
Collective on Mat
Input Parameter
inmat -the matrix
Output Parameter
mat -the explict operator transposed
Notes
This computation is done by applying the transpose of the operator to columns of the identity matrix.
This routine is costly in general, and is recommended for use only with relatively small systems.
Currently, this routine uses a dense matrix format if mattype == NULL.
Level
advanced
Location
src/mat/utils/axpy.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages