[petsc-dev] Non-scalable matrix operations

[Jed Brown]

On Fri, Dec 23, 2011 at 09:50, Mark F. Adams <mark.adams at columbia.edu>wrote:

> Humm, my G-S in not in PETSc and it is perfectly scalable.  It does have
> more complex communication patterns but they are O(1) in latency and
> bandwidth.  I'm not sure I understand your description above.


It was more like, here's something that perhaps we want to put in PETSc,
what rich communication pattern does it use, such that, if provided, the
implementation would be simple?
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