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Re: [ns] Scheduler: UID space exhausted!



> I've been getting the following error message:
> 
> Scheduler: UID space exhausted!
> User's command returned 256
Older versions of the simulator used an integer (probably 32 bits) to keep track
of events in the scheduler-- the core of the simulator. If your simulations are
very long or use very high bandwidth links, or both, you may have more than 2
billion events
and run out of numbers. Unfortunately, this has to do with system architecture,
not RAM or disk space.

The latest snapshot (Nov. 6th and forward) has a patch to use 64 bit integers
when available, and should avoid the overflow problem, but your system may not
support it. If you are using 'gcc' or another compiler which can emulate 64 bit
integers, or are on a native 64-bit system like an alpha, upgrading ns may solve
your problem. If not, you may just have to simplify or shorten your simulations.

-Eric

--------------------------------------------
 Eric H. Weigle   CCS-1, RADIANT team
 [email protected]     Los Alamos National Lab
 (505) 665-4937   http://home.lanl.gov/ehw/
--------------------------------------------