Hi,
I have questions abt DM and DMDALocalToLocalBegin / End.
I have 3 dof for u,v,w using DMDACreate3d.
Currently I'm using the topology of DM to help update the ghost values
on each processor.
I found that to update the ghost values, I only need to use
DMDALocalToLocalBegin / End.
Is this so?
Initially, I was using :
DMLocalToGlobalBegin / End and then
DMGlobalToLocalBegin / End.
Another thing is updating ghost values of only a single variable e.g. u.
Is that possible if my DMDACreate3d has 3 dof u,v,w?
Or must I create DMDACreate3d with only 1 dof u?
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Thank you.
Yours sincerely,
TAY wee-beng
