petsc-3.6.1 2015-08-06
MatCreateVecs
Get vector(s) compatible with the matrix, i.e. with the same parallel layout
Synopsis
#include "petscmat.h"
PetscErrorCode MatCreateVecs(Mat mat,Vec *right,Vec *left)
Collective on Mat
Input Parameter
mat -the matrix
Output Parameter
| right | - (optional) vector that the matrix can be multiplied against
|
| left | - (optional) vector that the matrix vector product can be stored in
|
Notes
The blocksize of the returned vectors is determined by the row and column block sizes set with MatSetBlockSizes() or the single blocksize (same for both) set by MatSetBlockSize().
Notes: These are new vectors which are not owned by the Mat, they should be destroyed in VecDestroy() when no longer needed
See Also
MatCreate(), VecDestroy()
Level:advanced
Location:src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/mat/examples/tutorials/ex9.c.html
src/ksp/ksp/examples/tutorials/ex4.c.html
src/ksp/ksp/examples/tutorials/ex10.c.html
src/ksp/ksp/examples/tutorials/ex42.c.html
src/ksp/ksp/examples/tutorials/ex49.c.html
src/ksp/ksp/examples/tutorials/ex63.cxx.html
src/ksp/ksp/examples/tutorials/ex15f.F.html
src/ksp/ksp/examples/tutorials/ex54f.F.html
src/ts/examples/tutorials/ex8.c.html
src/ts/examples/tutorials/ex16.c.html
src/ts/examples/tutorials/ex19.c.html