petsc-3.14.5 2021-03-03
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# ISLocalToGlobalMapping

mappings from an arbitrary local ordering from 0 to n-1 to a global PETSc ordering 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.

Note: the 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()

### Level

intermediate

### Location

src/vec/is/is/../../../../include/petscistypes.h

### Implementations

_p_ISLocalToGlobalMapping in include/petsc/private/isimpl.h
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages