[ndnSIM] shortestpath poblem
Christian Kreuzberger
christian.kreuzberger at itec.aau.at
Tue Feb 17 08:00:16 PST 2015
Hi,
I have a similar problem with version 2.0.
CalculateAllPossibleRoutes() crashes - I have about 300 nodes, a single
prefix (/prefix) and several content providers (about 5-10) that host
/prefix.
I will try to create an example scenario to reproduce the problem ASAP.
Best Regards,
Christian
On 2015-02-16 08:40, Spyridon (Spyros) Mastorakis wrote:
> Hello,
>
> the FibHelper is not available in ndnSIM 1.0. I would suggest that you
> update to the new version if you want to use it.
>
> --
> Spyridon (Spyros) Mastorakis
> Personal Website: http://cs.ucla.edu/~mastorakis/
> Internet Research Laboratory
> PhD Computer Science
> UCLA
>
>
>
>
>> On Feb 15, 2015, at 3:04 AM, narjes aloulou <aloulounarjes at yahoo.fr>
>> wrote:
>>
>> Hi,
>>
>> I test it with the optimised mode, but it did'nt work. Can I use the
>> FibHelper from 1.0 version?
>>
>> Thanks for your Help
>>
>> Best Regards
>>
>> --------------------------------------------
>> En date de : Jeu 12.2.15, Alex Afanasyev
>> <alexander.afanasyev at ucla.edu> a écrit :
>>
>> Objet: Re: [ndnSIM] shortestpath poblem
>> À: "narjes aloulou" <aloulounarjes at yahoo.fr>
>> Cc: ndnsim at lists.cs.ucla.edu
>> Date: Jeudi 12 février 2015, 7h05
>>
>> Double check that you
>> have build NS-3/ndnSIM in optimized mode. Implementation
>> of CalculateRoutes internally uses Dijkstra algorithm from
>> Boost graph library (which is known to be extremely slow in
>> debug mode). It should be a problem for this number of
>> prefixes and nodes.
>>
>> If
>> still fails, you can compute all routes and prefixes offline
>> and install them directly using FibHelper.
>>
>> --
>> Alex
>>
>>> On Feb 11, 2015, at 4:55 PM, narjes
>> aloulou <aloulounarjes at yahoo.fr>
>> wrote:
>>>
>>> Hi,
>>>
>>> Considering a large
>> catalog (10⁶ prefixes),
>> "ndnGlobalRoutingHelper.CalculateRoutes ()"
>> creates an infinite loop and crashes the system. My scenario
>> consists of 300 nodes and I use ndnSIM 1.0.
>>>
>>> Any solution to
>> resolve this problem , please?
>>> Are
>> there any way to use ShortestPath without using the
>> ndnGlobalRoutingHelper ?
>>>
>>>
>>> Best Regards
>>
>>
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>
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