ISLocalToGlobalMapping#
mappings from a local ordering (on individual MPI processes) of 0 to n-1 to a global PETSc ordering (across collections of MPI processes) used by a vector or matrix.
Synopsis#
typedef struct _p_ISLocalToGlobalMapping *ISLocalToGlobalMapping;
Note#
Mapping from local to global is scalable; but global
to local may not be if the range of global values represented locally
is very large. ISLocalToGlobalMappingType
provides alternative ways of efficiently applying `ISGlobalToLocalMappingApply()
Developer Note#
ISLocalToGlobalMapping
is actually a private object; it is included
here for the inline function ISLocalToGlobalMappingApply()
to allow it to be inlined since
it is used so often.
See Also#
ISLocalToGlobalMappingCreate()
, ISLocalToGlobalMappingApply()
, ISLocalToGlobalMappingDestroy()
, ISGlobalToLocalMappingApply()
Level#
intermediate
Location#
Examples#
src/vec/is/is/tutorials/ex5.c
src/vec/is/is/tutorials/ex4.c
src/ksp/ksp/tutorials/ex59.c
src/vec/vec/tutorials/ex8f.F90
src/ksp/ksp/tutorials/ex43.c
src/vec/vec/tutorials/ex9.c
src/vec/vec/tutorials/ex8.c
src/ksp/ksp/tutorials/ex70.c
src/ksp/ksp/tutorials/ex85.c
src/ksp/ksp/tutorials/ex14f.F90
Implementations#
_p_ISLocalToGlobalMapping in include/petsc/private/isimpl.h
ISLocalToGlobalMapping_Basic in src/vec/is/utils/isltog.c
ISLocalToGlobalMapping_Hash in src/vec/is/utils/isltog.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages