Friday, September 23, 2005

Complaints DO work II

Complaints do work, albeit with a slight backlash sometimes... there are 2 emails below, 1st is a correspondence between us and our lecturer for our Mobile Computing Project; 2nd is a broadcast message sent to everyone in the module, right after the 1st is out.


start reading from bottom to top, because of all the forwardings within.




2nd MESSAGE
=========================================

-----Original Message-----
From: winston
Sent: Thu 9/22/2005 10:01 PM
To: Everyone
Cc:
Subject: IVLE: Amendment to Assignment 2
Assignment 2 has been amended to remove the 300 node scenario as some of
you are facing some problems with the server. Please refer to the
amended assignment sheet.




1ST MESSAGE
=========================================
Dear Winston,

I certainly don't think that the assignment is a waste of time and I'm learning a lot from it.
I'm glad that my constructive feedback is taken seriously and just to clarify I definitely don't feel that you are forcing me to take this module.
Fortunately, I won't be requesting to withdraw from this module.

Dear Ms Er,
I'm grateful to you for designing this assignment; I am sorry for making you think that I'm wasting your time or any other misunderstandings that may have occurred.

Eugene

-----Original Message-----
From: Winston
Sent: Thu 9/22/2005 9:49 PM
To: Ng Kangwei Eugene
Cc: Winston; Sandeep
Subject: Re: Qualnet Assignment

Eugene,

If you think the assignment is a waste of time, then you shouldn't be taking this module in the first place. We welcome your constructive feedback and will make changes where necessary. But, this is merely an assignment to you and it is wasting your time, then I am not forcing you to take this module. You are free to withdraw from this module and I will support your request. Inn Inn put in alot of effort to design this assignment; so don't waste her time!!!

-- Winston

Ng Kangwei Eugene wrote:

> Hi Ms Inn,
>
> This job is very memory intensive, we can't do our other work with qualnet running.
> Also, 200 nodes don't work on a machine with 256 MB RAM. We haven't tested on one with 512MB.
> For 180 simulations may take 180 hours = 6++ days in all and for 3 protocols it will take a total of 18 days.
> Qualnet license will end on 30th Sept and we cannot finish the assignment on time.
>
> Maybe we can reduce the size of the map, and the number of nodes.
> After all, this is merely an assignment. I think we shouldn't waste so much time just because the parameters are big?
>
> Rgds,
> Eugene
>
> -----Original Message-----
> From: Ms Er
> Sent: Thu 9/22/2005 2:02 PM
> To: Mock Wei Liang,Kenneth
> Cc: Winston; Ng Kangwei Eugene; Lee Weng Hong; Kwek Min Qiang; Mock Wei Liang,Kenneth
> Subject: RE: Qualnet Assignment
>
> Hi,
>
> Seems like this is a problem with the limitation of SoC sun server. Did you try to run the simulations on your own machines? Is it possible to try to run simulations on your own machines? Please try to install Qualnet and run it. If this problem persists, then we will try to resolve.
>
>
> regards
> Ms Er
>
> -----Original Message-----
> From: Mock Wei Liang,Kenneth
> Sent: Thu 9/22/2005 1:50 PM
> To: Ms Er
> Cc: Winston; Ng Kangwei Eugene; Lee Weng Hong; Kwek Min Qiang; Mock Wei Liang,Kenneth
> Subject: RE: Qualnet Assignment
>
> Hi Mr Er,
>
>
> We tried it again with a packet size of 512 , and it seems that for 200 nodes , we are still getting the same messsage:
>
> ./runRW2001.sh: line 10: 21334 Cpu Limit Exceeded
>
> And for 300 nodes , its the same kind of error too:
>
> ./runRW3001.sh: line 10: 14077 Cpu Limit Exceeded
>
> Note that we are running the AODV simulations on the sunfire server's Qualnet.
>
> Could you please advise on this?
>
> Rgds,
> Kenneth
>
> From: Ng Kangwei Eugene
> Sent: Wednesday, September 21, 2005 4:13 PM
> To: Ms Er; Winston; Lee Weng Hong; Mock Wei Liang,Kenneth; Kwek Min Qiang
> Subject: Re: Qualnet Assignment
>
> Hi Ms Er,
>
> We tried to run the simulation for 200 nodes. But it seems that the sunfire server cannot take it and we are returned with the error message below.
> Also each simulation takes an estimated 1hr 40 min.
> 300 nodes will be worse?
> I think the simulations will take several days in all.
>
> Error in file ../addons/par/memory.cpp:52
> Ran out of Memory. Run in debugger to see the location.
> ./runRW2002.sh: line 4: 8911 Abort /opt/qualnet/3.7/bin/qualnet 201ran15.config 200ran1509 -seed 9
>
> How shall we solve this problem?
>
> Rgds,
> Eugene
>

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