Re: 512 parallel FTP sessions very slow?

[Guillermo Rodriguez Garcia <guille@iies.es>]

At 16:29 18/01/00 -0600, you wrote:

>Dear NS experts,
>we are in the process of evaluating NS for simulating a 512x512 switch
>(we know that NS does not support switches yet, so that we would have to
>write some code ourselves; will that change, by the way?).
>To get an idea of the speed of NS we tried the following little script:
>it runs 512 parallel FTP sessions.
>We found that on a Sparc-20 it took 1.5 hours for 1 ms of simulation!!!
>Are we doing something wrong?

A good fraction of this time is due to the topology generation - nodes
and links, not related to the duration of the simulation itself.

Regards,
G.

--
Guillermo Rodriguez Garcia
<guille@iies.es>