ISLocate#

determine the location of an index within the local component of an index set

Synopsis#

#include "petscis.h" 
PetscErrorCode ISLocate(IS is, PetscInt key, PetscInt *location)

Not Collective

Input Parameters#

is - the index set
key - the search key

Output Parameter#

location - if >= 0, a location within the index set that is equal to the key, otherwise the key is not in the index set

See Also#

IS

Level#

intermediate

Location#

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

Examples#

src/ksp/ksp/tutorials/ex19.c
src/ksp/ksp/tutorials/ex76.c

Implementations#

ISLocate_Block in src/vec/is/is/impls/block/block.c
ISLocate_General in src/vec/is/is/impls/general/general.c
ISLocate_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