Billy, It is the global index. But, yes, you can only "get" values that belong to your process. Barry On Wed, 22 Mar 2006, billy at dem.uminho.pt wrote: > > > VecGetValues(Vec x,PetscInt ni,const PetscInt ix[],PetscScalar y[]) > > The documentation says ix is global index, isn't it the local index? > > > Billy > >