petsc-dev 2014-08-28
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PetscSFSetGraph

Set a parallel star forest

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFSetGraph(PetscSF sf,PetscInt nroots,PetscInt nleaves,const PetscInt *ilocal,PetscCopyMode localmode,const PetscSFNode *iremote,PetscCopyMode remotemode)
Collective

Input Arguments

sf - star forest
nroots - number of root vertices on the current process (these are possible targets for other process to attach leaves)
nleaves - number of leaf vertices on the current process, each of these references a root on any process
ilocal - locations of leaves in leafdata buffers, pass NULL for contiguous storage
localmode - copy mode for ilocal
iremote - remote locations of root vertices for each leaf on the current process
remotemode - copy mode for iremote

See Also

PetscSFCreate(), PetscSFView(), PetscSFGetGraph()

Level:intermediate
Location:
src/vec/is/sf/interface/sf.c
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/vec/is/sf/examples/tutorials/ex1.c.html
src/ts/examples/tutorials/ex11.c.html