petsc-3.13.6 2020-09-29

ISLocalToGlobalMappingConcatenate

Create a new mapping that concatenates a list of mappings

Synopsis

#include "petscis.h"  
PetscErrorCode ISLocalToGlobalMappingConcatenate(MPI_Comm comm,PetscInt n,const ISLocalToGlobalMapping ltogs[],ISLocalToGlobalMapping *ltogcat)

Not Collective

Input Arguments

	comm	- communicator for the new mapping, must contain the communicator of every mapping to concatenate
	n	- number of mappings to concatenate
	ltogs	- local to global mappings

Output Arguments

ltogcat -new mapping

Note: this currently always returns a mapping with block size of 1

Developer Note: If all the input mapping have the same block size we could easily handle that as a special case

Level

advanced

Location