DMDAVecGetArrayDOFWrite#
Returns a multiple dimension array that shares data with the underlying vector and is indexed using the global dimensions.
Synopsis#
#include "petscdmda.h"
PetscErrorCode DMDAVecGetArrayDOFWrite(DM da, Vec vec, void *array)
Not Collective
Input Parameters#
da - the distributed array
vec - the vector, either a vector the same size as one obtained with
DMCreateGlobalVector()orDMCreateLocalVector()
Output Parameter#
array - the array
Notes#
Call DMDAVecRestoreArrayDOFWrite() once you have finished accessing the vector entries.
In C, the indexing is “backwards” from what expects: array[k][j][i][DOF] NOT array[i][j][k][DOF]!
Fortran Noe#
In Fortran you do not need a version of DMDAVecRestoreArrayDOF() just use DMDAVecRestoreArrayWriteF90() and declare your array with one higher dimension,
see src/dm/tutorials/ex11f90.F
See Also#
DM, DMDA, DMDAGetGhostCorners(), DMDAGetCorners(), VecGetArray(), VecRestoreArray(), DMDAVecRestoreArray(), DMDAVecGetArray(), DMDAVecGetArrayDOF(),
DMDAVecGetArrayWrite(), DMDAVecRestoreArrayWrite(), DMDAVecGetArrayWrite(), DMDAVecRestoreArrayWrite()
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex34.c.html
Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages