petsc-3.8.4 2018-03-24
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ISConcatenate

 Forms a new IS by locally concatenating the indices from an IS list without reordering.

Synopsis

#include "petscis.h"  
PetscErrorCode ISConcatenate(MPI_Comm comm, PetscInt len, const IS islist[], IS *isout)

Collective on comm.

Input Parameter

comm - communicator of the concatenated IS.
len - size of islist array (nonnegative)
islist - array of index sets

Output Parameters

isout -The concatenated index set; empty, if len == 0.

Notes: The semantics of calling this on comm imply that the comms of the members if islist also contain this rank.

See Also

ISDifference(), ISSum(), ISExpand()

Level:intermediate
Location:src/vec/is/is/utils/isdiff.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages