petsc-3.3-p7 2013-05-11

PetscSFSetGraph

Set a parallel star forest

Synopsis

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 PETSC_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/sys/sf/sf.c
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/sys/sf/examples/tutorials/ex1.c.html