[Ns-developers] ns-3 and future development
Mathieu.Lacage at sophia.inria.fr
Tue Jan 17 11:05:04 PST 2006
Daniel Mahrenholz wrote:
> Before we spend to much effort in parallelization we should think
> about for what we will use it. We had a master thesis that tried to
> extend ns-2 to be useable for a parallel/distributed simulation of
> MANETs. We
could you point me to a reference to this work ?
> learned that this is almost impossible to gain a speed-up using
> conservative synchronization even using shared memory communication
> (libSync). I don't know how PDNS performs for wired networks or if
> optimistic synchronization would perform better but we should
> investigate this before.
The people who worked on gtnets seem to think otherwise. They have
published a few papers which show interesting results. Clearly, I have
not attempted to reproduce them and to see how they apply to other
simulation scenarios so, I cannot be positive this path will lead us to
> There is one thing that would be very useful (at least for me) -
> parallelization/distribution of independent replications and
> aggregation of results/traces in one place.
I see. Yes, it would be useful to you and other users (me included).
However, I see this sort of problem as being decorelated from the
simulator itself: it seems to me to be a matter of writing the right
scripts to control the simulator. I wonder if such scripts could be made
generic enough to be useful to more than one user.
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