On Thu, Jul 30, 2015 at 10:51 AM, Xujun Zhao <xzha...@gmail.com> wrote:

> Hi all,
>
> Writing out equations systems failed during run, which used to work before.
> Just go to examples/system_equations/ex1/, make and run, it gives the
> following error msgs:
>
> --->test: write out the Exodus file ...
>
> Warning:  This MeshOutput subclass only supports meshes which have been
> serialized!
>
> [0]PETSC ERROR:
>
> However, if I comment on the following line, everything is good.
> ExodusII_IO(mesh).write_equation_systems ("out.e", equation_systems);
>

You configured libmesh with --enable-parmesh, right?  I ran the same
example, swapping out Mesh for ParallelMesh and it works just fine.

Furthermore, this example is run by the continuous integration system every
time someone opens a PR in libmesh, so I'm pretty confident it works.

I suspect something is wrong with your compiler/build instead...

-- 
John
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