[petsc-users] several DAs with different dofs

[Barry Smith]

On Nov 7, 2013, at 4:31 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> Barry Smith <bsmith at mcs.anl.gov> writes:
>>   There is no easier way. Just live with the memory usage.
> 
> DMDA with stencil width of 0 could use contiguous index sets (ISStride)
> so that the scatters take up no memory, right?  Why should stencil width
> 0 use any problem-sized memory?

   Maybe it doesn’t. Just give it a try.