libGDB and gdbserver questions

[Donny Kurniawan]

> It has a "parallel gdb" version called mpigdb:
> http://www-unix.mcs.anl.gov/mpi/mpich/docs/userguide/node26.htm#Node29
>
> It wraps the stdio and allows to send gdb commands either to all nodes
> or to one specified node. The worst thing is that it works
> synchronously - when you issue "step" to one node you can not issue
> other commands (even switching to another node) until the step
> completes.
>

Hi Konstantin,

We used mpigdb in the past. But, clearly it will choke if we use it to
handle 1000 procs. Thus, we're looking for a very lightweight debug
engine.

Donny