[petsc-dev] [petsc-users] Add a matrix to MatNest twice

[Jed Brown]

On Tue, Feb 21, 2012 at 16:37, Barry Smith <bsmith at mcs.anl.gov> wrote:

> Oh, you mean using pthreads to spawn a thread that waits at blocking
> collective?  :-)
>
>   BTW; do you really think MPI-3 will exist? Or it should exist?
>

I can call MPIX_Iallreduce() (and lots of other non-blocking collectives)
today.
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