petsc-master 2019-12-10
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PetscSFSetFromOptions

set PetscSF options using the options database

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFSetFromOptions(PetscSF sf)
Logically Collective

Input Arguments

sf -star forest

Options Database Keys

-sf_type - implementation type, see PetscSFSetType()
-sf_rank_order - sort composite points for gathers and scatters in rank order, gathers are non-deterministic otherwise
-sf_use_pinned_buffer - use pinned (nonpagable) memory for send/recv buffers on host when communicating GPU data but GPU-aware MPI is not used. Only available for SF types of basic and neighbor.

See Also

PetscSFWindowSetSyncType()

Level

intermediate

Location

src/vec/is/sf/interface/sf.c

Examples

src/vec/is/sf/examples/tutorials/ex1.c.html
src/vec/is/sf/examples/tutorials/ex2.c.html
src/vec/is/sf/examples/tutorials/ex1f.F90.html

Implementations

PetscSFSetFromOptions_Basic in src/vec/is/sf/impls/basic/sfbasic.c
PetscSFSetFromOptions_Window in src/vec/is/sf/impls/window/sfwindow.c

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