:orphan: # MatGetLayouts Gets the `PetscLayout` objects for rows and columns ## Synopsis ``` #include "petscmat.h" PetscErrorCode MatGetLayouts(Mat A, PetscLayout *rmap, PetscLayout *cmap) ``` Not Collective ## Input Parameter - ***A -*** the matrix ## Output Parameters - ***rmap -*** row layout - ***cmap -*** column layout ## See Also [](ch_matrices), `Mat`, [Matrix Layouts](sec_matlayout), `PetscLayout`, `MatCreateVecs()`, `MatGetLocalToGlobalMapping()`, `MatSetLayouts()` ## Level advanced ## Location src/mat/interface/matrix.c --- [Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/mat/interface/matrix.c) [Index of all Mat routines](index.md) [Table of Contents for all manual pages](/manualpages/index.md) [Index of all manual pages](/manualpages/singleindex.md)