petsc-3.14.6 2021-03-30
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ISContiguousLocal

Locates an index set with contiguous range within a global range, if possible

Synopsis

#include "petscis.h" 
PetscErrorCode  ISContiguousLocal(IS is,PetscInt gstart,PetscInt gend,PetscInt *start,PetscBool *contig)
Not Collective

Input Parmeters

is - the index set
gstart - global start
gend - global end

Output Parameters

start - start of contiguous block, as an offset from gstart
contig - PETSC_TRUE if the index set refers to contiguous entries on this process, else PETSC_FALSE

See Also

ISGetLocalSize(), VecGetOwnershipRange()

Level

developer

Location

src/vec/is/is/interface/index.c

Implementations

ISContiguousLocal_General in src/vec/is/is/impls/general/general.c
ISContiguousLocal_Stride in src/vec/is/is/impls/stride/stride.c

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