[petsc-users] VecGetArray and use it for VecCreateSeqWithArray

[Hui Zhang]

Vec u,v;

VecCreateMPIAIJ(..,&u);
VecGetArray(u,&a);

VecCreateSeqWithArray(...,a,&v);

Is this safe?  I want the VecSeq v to read and write local array of u.  
This is for VecScatterCreate from a global Vec to the local Seq v, 
and then I hope that u get updated as well automatically.

Thanks in advance!