[petsc-dev] Monitor changes

[Jed Brown]

On Sun, Aug 14, 2011 at 13:11, Barry Smith <bsmith at mcs.anl.gov> wrote:

>   Yes, the publisher is required to insure that all memory references that
> they publish as fields remain around as long as the AMS memory exists.
>

This is the problem. There are things that the monitors and viewers compute
that are not backed by memory. We still want to be able to see these when
observing a computation. So we need to somehow communicate information that
is only on the stack to a GUI or database that is monitoring a computation.
Since we already want to transmit options, we could create some similar
channel (maybe buffered by AMS) or we could just call it a viewer and have a
way to hook an AMS client into that viewer (i.e. with a protocol that is not
too mismatched).
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