On Mon, 27 Aug 2012, 蔡园武 wrote:

It seems that the processor_id 0 is writing equation_systems to file
"Iter_0.gmv", and at the same time, processor_id 1 is trying to open
the file "Iter_0.gmv". Is it correct?

That would be my first guess.

I don't know much about MPI. Could someone explain this error,

For serialized file formats, we gather data to processor_id 0 and then
other processors are allowed to continue while 0 writes.

and how to solve it?

Try a Parallel::barrier() call after the GMVIO?
---
Roy
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