MatSelectVariableBlockSizes#
When creating a submatrix, pass on the variable block sizes
Synopsis#
#include "petscmat.h"
PetscErrorCode MatSelectVariableBlockSizes(Mat subA, Mat A, IS isrow)
Not Collective
Input Parameter#
subA - the submatrix
A - the original matrix
isrow - The
ISof selected rows for the submatrix, must be sorted
Notes#
If the index set is not sorted or contains off-process entries, this function will do nothing.
See Also#
Matrices, Mat, MatSetVariableBlockSizes(), MatComputeVariableBlockEnvelope()
Level#
developer
Location#
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages