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by stevetmq
Tue Mar 13, 2012 9:26 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

... was started, kudos to You all.<br/> Since first reading about the R-pi months ago I have thought about teaching Myself how to build a cluster / bramble. Now not being an expert at all on brambleing these are just thoughts I"ve had.<br/> 1, Even though the R-pi has only 100 Mb Ethernet I would ...
by stevetmq
Tue Mar 13, 2012 9:22 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>Lob0426 said: <br/> <br/> <br/> <br/> I have always had better luck with shorter cabling. I believe there is less possibility of radio interference with shorter lengths. And it is neater. Just one of my quirks I guess.<br/> <br/> <br/> First sorry for the spelling I am dislex……<br/> <br/> <br/> <...
by stevetmq
Tue Mar 13, 2012 9:02 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<r>Svartalf said: <br/> <br/> <br/> <br/> <br/> <br/> <br/> <br/> <br/> Keep all cabling as short as possible for the best performance.<br/> <br/> <br/> Heh... Standard 9" cabling will work as well as 3" stuff. Main reason for the short cabling would be to make it easy to keep "tidy". <br/> <br/> Fi...
by setkeh
Mon Mar 12, 2012 12:03 pm
Forum: General discussion
Topic: How would a bramble work?
Replies: 11
Views: 9244

Re: How would a bramble work?

<r>Hey Guys<br/> <br/> I have been Following RPI for quite some time and im am extreamly exited about the upcoming release and i have been bashing around the forums for some time and i read about Brambling the RPI so i gots thinking and followed quite a few tuts on the net to get RPI archlinux runni...
by slysimon
Sat Mar 10, 2012 4:55 pm
Forum: General discussion
Topic: How many do you invision purchasing?
Replies: 50
Views: 13017

Re: How many do you invision purchasing?

<t>One to start with , which I will use for development. I then enivage 6 - 8 for a distributed computing 'Bramble' and a few more in different parts of the house.<br/> <br/> Intentions are:<br/> <br/> Greenhouse Climate Control<br/> <br/> Home Automation - to include:<br/> ...
by Joules
Fri Mar 09, 2012 2:08 pm
Forum: Other projects
Topic: Musing on cases
Replies: 2
Views: 1296

Re: Musing on cases

Also a hook, so you can hang them on a wall to make a Bramble bush.
by truan
Thu Mar 08, 2012 10:36 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>Yeah, I was thinking that the cost of the switch would be a higher % of the total cost, but you can get some pretty cheap ones now, especially if you don't need gigabit.<br/> <br/> Using the gpio etc for a kind of 'side channel' is an interesting one though, would there be any benefit in the proc...
by RaTTuS
Thu Mar 08, 2012 10:09 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

Cheep 5 port ethernet 100Mbps switch £12

4 Rpi's and one to link upwards
by mole125
Thu Mar 08, 2012 9:57 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>My gut instinct is that the ethernet chip is designed for ethernet and would probably be next to impossible to force it to do other stuff.<br/> <br/> You could probably achieve what you want for short distances using the GPIO pins, in pariicular the I2C and/or SPI interface. With I2C it should be...
by truan
Thu Mar 08, 2012 8:46 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>OK, just to clarify, yes I know it's a ring network (I was actually thinking more like Real Time Token Ring), what I was wondering is whether the data link layer would 'allow' it, or whether you would need to rewrite stuff and the lower network layers (which I am thinking are possibly 'hard coded...
by winwaed
Wed Mar 07, 2012 9:19 pm
Forum: General discussion
Topic: How many sold so far?
Replies: 19
Views: 6173

Re: How many sold so far?

... (myself included) are waiting until there's more supply.<br/> <br/> I have ideas as to what to do with it (model railroad applications and a Bramble both come to mind)  but already have a hundred things on my plate - also one might make it transatlantic baggage in a few weeks, if I'm lucky! ...
by abishur
Wed Mar 07, 2012 9:17 pm
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>spurious said: <br/> <br/> <br/> Abishur said: <br/> <br/> <br/> truan said: <br/> <br/> <br/> Probably just as useless a thought...<br/> Is there any way with CAT-5 of splitting the TX and RX lines and sending them to different computers?  I am thinking you could form a kind of ring (so TX goes ...
by spurious
Wed Mar 07, 2012 9:09 pm
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>Abishur said: <br/> <br/> <br/> truan said: <br/> <br/> <br/> Probably just as useless a thought...<br/> Is there any way with CAT-5 of splitting the TX and RX lines and sending them to different computers?  I am thinking you could form a kind of ring (so TX goes to the clockwise, RX comes from t...
by abishur
Wed Mar 07, 2012 8:16 pm
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>truan said: <br/> <br/> Probably just as useless a thought...<br/> Is there any way with CAT-5 of splitting the TX and RX lines and sending them to different computers?  I am thinking you could form a kind of ring (so TX goes to the clockwise, RX comes from the anticlockwise), I am guessing it wo...
by d7p
Wed Mar 07, 2012 7:21 pm
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

You are describing a ring network tapology. I don"t know if you can split the Ethernet cable and still have it work.

However this would give you a low through put network. Sins each berry touches the packet and so processes it.
by truan
Wed Mar 07, 2012 6:58 pm
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

<t>Just adding interest too.<br/> <br/> Useless piece of information ... I believe raspberries are known as 'cluster fruits' (along with blackberries) owing to the fact that they are a cluster of individual fruits (each little ball has a single seed inside).<br/> <br/> Probably just as useless a tho...
by bernardthebear
Wed Mar 07, 2012 5:12 pm
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

Just adding my interest... I would definitely like to build one of these
by DevilWAH
Wed Mar 07, 2012 10:07 am
Forum: Other projects
Topic: Cluster (Bramble...) Design Discussion (Advanced)
Replies: 170
Views: 93113

Re: Cluster (Bramble...) Design Discussion (Advanced)

I already have some access to a "Condor" cluster, so it should be very simple to test a reaspberry as a clint and see how it compares to a standard desktop.

I am sure it wont be as fast, but will be fun to try and for cost and power it may well win out over a desktop.
by Bakul Shah
Tue Mar 06, 2012 9:25 pm
Forum: General discussion
Topic: Planned downtime tomorrow while we upgrade the servers
Replies: 8
Views: 1699

Re: Planned downtime tomorrow while we upgrade the servers

... Amazon EC2 would be ideal as you can add capacity as needed. Alternately this may be a perfect opportunity to experiment with an elephant in a bramble: a hadoop map/reduce cluster! Map tasks run on individual 'Pis in the cluster, Reduce task(s) on the master node, which can be a hefty x86 server. ...
by Gert van Loo
Tue Mar 06, 2012 7:17 pm
Forum: General discussion
Topic: Meta computers
Replies: 2
Views: 742

Re: Meta computers

I suggest you search the forum using the search term 'bramble'.
by Gert van Loo
Sun Mar 04, 2012 7:16 pm
Forum: Other projects
Topic: Could one build a mini-supercomputer?
Replies: 1
Views: 1206

Re: Could one build a mini-supercomputer?

There are several threads about that already. Search for 'bramble'.

Closing this one to avoid duplication.
by Jongoleur
Sun Feb 26, 2012 9:45 am
Forum: Off topic discussion
Topic: Woohoo!! It's Thursday in China!!!
Replies: 28
Views: 4262

Re: Woohoo!! It's Thursday in China!!!

TheEponymousBob said:


Where"s the safest place to hide a valuable instrument?

.

.
.
.

An accordian case



You could build a bramble in one of those!!!
by obarthelemy
Sat Feb 25, 2012 4:23 pm
Forum: Off topic discussion
Topic: Has anyone noticed that ...
Replies: 19
Views: 5785

Re: Has anyone noticed that ...

... a fan) and look for the more original item for sale at the bottom (that's not apt, though) of her shop. Given the lady's size, that should fit a bramble.<br/> <br/> Her stuff on youtube is mainly  very bad quality. There's , but she was very tame that night ^^</t>
by slacer
Wed Feb 22, 2012 10:14 pm
Forum: Other projects
Topic: Cases for the Raspberry Pi
Replies: 866
Views: 435555

Re: Cases for the Raspberry Pi

... console, a firewall router, etc.<br/> <br/> Having the RPi boxes upright and 3 connections to the front makes it easy to replace a unit from this bramble by just drawing it from the shelf...</t>
by mgmt_idiot
Wed Feb 22, 2012 7:37 pm
Forum: General discussion
Topic: step by step guide?
Replies: 91
Views: 15961

Re: step by step guide?

... but I can see use-cases and cost-benefit in some of the estates of my customers. MIPS / Watt is a real benefit as I recall Gert pointing out in a bramble / cluster discussion.<br/> <br/> It is also worth noting, that where I can, I have cited my sources, and my cross-references in posts. Posting ...

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