To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.robotics.rcx.legosOpen lugnet.robotics.rcx.legos in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / RCX / legOS / 3099
3098  |  3100
Subject: 
Re: DISTRIBUTED/PARALLEL CLUSTER for legOS through n*RCX
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Wed, 15 Jan 2003 21:51:16 GMT
Viewed: 
3104 times
  
Hi there, did some worh with rcx/legos/DSM in my thesis which can be found
at www.cs.uit.no/~kennethj/Thesis.ps Although i didnt share the memory of
each rcx, i installed a dsm server(created at the local university)
on a notebook which each rcx could
read/write to, as well as contact another rcx directly if desired.
anyways, take a look at the thesis, perhaps you will get some idea of what
to do...(or not to do:)
kenneth


On Wed, 15 Jan 2003, CarlosLuis Rendón M. wrote:

Hi all. I'm taking a course on parallel/distributed operating systems. So
this post attempts to find out if someone has thought, or has implemented
some kind of distributed application over BrickOS/legOS (from now legOS, for
this post). I know there's support for IP/IR networking. But what I'd like
to do is to have an extra layer, that hides to the end user (the
programmer), the managment of the n*RCX, that conform this "cluster". This
would mean that to the programmer, this megaRCX would have 3*n
sensors/motors (where n is the # of RCXs that would conform the "cluster").
Of course every RCX attached to the cluster should process/take decisions
over his sensors/motors, and then just inform status to the main scheduler
(is just an idea of how to implement it, I'm not an expert on this).
Also, would be great to share the memory (which is so scarce on a single
RCX). In a nutshell: to have MPMD (multiple process over multiple data),
over this megaRCX. I know that there's a big problem with the speed (the IR
port), but for now, we don't want this "cluster" for a hard real time app,
do we? So, would be great to recieve comments about what's been done until
now, feasibility (is out of the planet to put this extra layer over what's
done until now of  legOS?), pros/con, and of course, any kind of comment.

PD: also would be great if Markus (or any of his lieutenants), could give me
some light on any of the aspects I've mentioned above.


Best Regards,
CarlosLuis Rendon M.




Message is in Reply To:
  DISTRIBUTED/PARALLEL CLUSTER for legOS through n*RCX
 
Hi all. I'm taking a course on parallel/distributed operating systems. So this post attempts to find out if someone has thought, or has implemented some kind of distributed application over BrickOS/legOS (from now legOS, for this post). I know (...) (22 years ago, 15-Jan-03, to lugnet.robotics.rcx.legos)

7 Messages in This Thread:



Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR