PetscSFDeregisterPersistent

Signal that repeated usage of rootdata and leafdata for PetscSF communication has concluded.

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFDeregisterPersistent(PetscSF sf, MPI_Datatype unit, const void *rootdata, const void *leafdata)

Collective

Input Parameters

• sf - star forest

• unit - the data type contained within the rootdata and leafdata

• rootdata - root data that was previously registered with PetscSFRegisterPersistent()

• leafdata - leaf data that was previously registered with PetscSFRegisterPersistent()

Note

See PetscSFRegisterPersistent() for when and how to use this function.

See Also

PetscSF - an alternative to low-level MPI calls for data communication, PetscSF, PETSCSFWINDOW, PetscSFRegisterPersistent()

Level

advanced

Location

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

Examples

src/vec/is/sf/tutorials/ex1.c
src/vec/is/sf/tutorials/ex3.c

Implementations

PetscSFDeregisterPersistent_Window() in src/vec/is/sf/impls/window/sfwindow.c

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