petsc-3.12.5 2020-03-29
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PetscSectionCreate

Allocates PetscSection space and sets the map contents to the default.

Synopsis

#include "petscsection.h"   
PetscErrorCode PetscSectionCreate(MPI_Comm comm, PetscSection *s)
Collective

Input Parameters

comm - the MPI communicator
s - pointer to the section

Notes

Typical calling sequence
      PetscSectionCreate(MPI_Comm,PetscSection *);
      PetscSectionSetNumFields(PetscSection, numFields);
      PetscSectionSetChart(PetscSection,low,high);
      PetscSectionSetDof(PetscSection,point,numdof);
      PetscSectionSetUp(PetscSection);
      PetscSectionGetOffset(PetscSection,point,PetscInt *);
      PetscSectionDestroy(PetscSection);

The PetscSection object and methods are intended to be used in the PETSc Vec and Mat implementions; it is recommended they not be used in user codes unless you really gain something in their use.

See Also

PetscSection, PetscSectionDestroy()

Level

beginner

Location

src/vec/is/section/interface/section.c

Examples

src/ts/examples/tutorials/ex11.c.html

Index of all PetscSection routines
Table of Contents for all manual pages
Index of all manual pages