Subject:
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Re: DISTRIBUTED/PARALLEL CLUSTER for legOS through n*RCX
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Wed, 15 Jan 2003 21:51:16 GMT
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Viewed:
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2832 times
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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.
>
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