PETSc version 3.17.0
DMNetworkCreateIS
Create an index set object from the global vector of the network
Synopsis
#include "petscdmnetwork.h"
PetscErrorCode DMNetworkCreateIS(DM dm,PetscInt numkeys,PetscInt keys[],PetscInt blocksize[],PetscInt nselectedvar[],PetscInt *selectedvar[],IS *is)
Collective
Input Parameters
| dm | - DMNetwork object
|
| numkeys | - number of keys
|
| keys | - array of keys that define the components of the variables you wish to extract
|
| blocksize | - block size of the variables associated to the component
|
| nselectedvar | - number of variables in each block to select
|
| selectedvar | - the offset into the block of each variable in each block to select
|
Output Parameters
Notes
Use blocksize[i] of -1 to indicate select all the variables of the i-th component, for which nselectvar[i] and selectedvar[i] are ignored. Use NULL, NULL, NULL to indicate for all selected components one wishes to obtain all the values of that component. For example, DMNetworkCreateIS(dm,1,&key,NULL,NULL,NULL,&is) will return an is that extracts all the variables for the 0-th component.
See Also
DMNetworkCreate(), ISCreateGeneral(), DMNetworkCreateLocalIS()
Level
Advanced
Location
src/dm/impls/network/network.c
Index of all DMNetwork routines
Table of Contents for all manual pages
Index of all manual pages