[petsc-users] How to read/write unstructured mesh in parallel

[Jed Brown]

On Tue, Nov 20, 2012 at 12:38 AM, Fande Kong <fd.kong at siat.ac.cn> wrote:

> I want to try very 'large' mesh.  I guess it should be bottleneck.


It's really worth profiling. Having every process read directly is no more
scalable (frequently less, actually) than having rank 1 read incrementally
and send to whoever should own it. You can do full parallel IO, but the
code depends on the mesh format.
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