PetscLayoutCreate#
Allocates PetscLayout object
Synopsis#
#include "petscis.h" 
PetscErrorCode PetscLayoutCreate(MPI_Comm comm, PetscLayout *map)
Collective
Input Parameter#
- comm - the MPI communicator 
Output Parameter#
- map - the new - PetscLayout
Notes#
Typical calling sequence
Alternatively,
      PetscLayoutCreateFromSizes(comm,n,N,bs,&layout);
Optionally use any of the following
  PetscLayoutGetSize(PetscLayout,PetscInt *);
  PetscLayoutGetLocalSize(PetscLayout,PetscInt *);
  PetscLayoutGetRange(PetscLayout,PetscInt *rstart,PetscInt *rend);
  PetscLayoutGetRanges(PetscLayout,const PetscInt *range[]);
  PetscLayoutDestroy(PetscLayout*);
The PetscLayout object and methods are intended to be used in the PETSc Vec and Mat implementations; it is often not needed in
user codes unless you really gain something in their use.
See Also#
PetscLayout, PetscLayoutSetLocalSize(), PetscLayoutSetSize(), PetscLayoutGetSize(), PetscLayoutGetLocalSize(),
PetscLayout, PetscLayoutDestroy(),
PetscLayoutGetRange(), PetscLayoutGetRanges(), PetscLayoutSetBlockSize(), PetscLayoutGetBlockSize(), PetscLayoutSetUp(),
PetscLayoutCreateFromSizes()
Level#
advanced
Location#
Examples#
src/ksp/ksp/tutorials/ex85.c
src/ts/tutorials/ex30.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages