[petsc-users] PETSC_HAVE_MPI_WIN_CREATE in petsc

[Matthew Knepley]

On Thu, Jan 5, 2012 at 2:25 PM, Junchao Zhang <junchao.zhang at gmail.com>wrote:

> Hello,
>   I browsed petsc source cdoe and found  a macro PETSC_HAVE_MPI_WIN_CREATE.
>   It seems petsc can use one-sided communication.  I want to test
> MatMult()'s performance with one-sided.
>   Then, how to enable it?
>

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Vec/VecScatterCreate.html#VecScatterCreate

   Matt


>   Thanks!
>
> -- Junchao Zhang
>
-- 
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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