[petsc-users] GlobalToLocal Begin/End

[Matthew Knepley]

On Mon, May 13, 2013 at 7:47 AM, Anton Popov <popov at uni-mainz.de> wrote:

> Hi guys,
>
> I need "GlobalToLocal" simultaneously about five vectors composed with
> different DMs.
> What do you think will do better?
>
> 1) post all Begins first, followed by all Ends
> 2) post each Begin-End couple one after another
>

It does not really matter unless you have work that can be done in the
middle.

   Matt


> Many thanks,
>
> Anton
>



-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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