petsc-3.3-p7 2013-05-11
PetscLayoutCreate
Allocates PetscLayout space and sets the map contents to the default.
Synopsis
#include "petscvec.h"
PetscErrorCode PetscLayoutCreate(MPI_Comm comm,PetscLayout *map)
Collective on MPI_Comm
Input Parameters
| comm | - the MPI communicator
|
| map | - pointer to the map
|
Notes: Typical calling sequence
PetscLayoutCreate(MPI_Comm,PetscLayout *);
PetscLayoutSetBlockSize(PetscLayout,1);
PetscLayoutSetSize(PetscLayout,n) or PetscLayoutSetLocalSize(PetscLayout,N);
PetscLayoutSetUp(PetscLayout);
Optionally use any of the following
PetscLayoutGetSize(PetscLayout,PetscInt *); or PetscLayoutGetLocalSize(PetscLayout,PetscInt *;)
PetscLayoutGetRange(PetscLayout,PetscInt *rstart,PetscInt *rend); or PetscLayoutGetRanges(PetscLayout,const PetscInt *range[])
PetscLayoutDestroy(PetscLayout);
The PetscLayout object and methods are intended to be used in the PETSc Vec and Mat implementions; it is often not needed in
user codes unless you really gain something in their use.
Fortran Notes
Not available from Fortran
See Also
PetscLayoutSetLocalSize(), PetscLayoutSetSize(), PetscLayoutGetSize(), PetscLayoutGetLocalSize(), PetscLayout, PetscLayoutDestroy(),
PetscLayoutGetRange(), PetscLayoutGetRanges(), PetscLayoutSetBlockSize(), PetscLayoutGetBlockSize(), PetscLayoutSetUp()
Level:developer
Location:src/vec/vec/impls/mpi/pmap.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages