[Beowulf] Re: Beowulf of bare motherboards
alvin at Mail.Linux-Consulting.com
Tue Sep 28 08:31:54 PDT 2004
hi ya glen
On Mon, 27 Sep 2004, Glen Gardner wrote:
> I've gone on a bit of a rant here, but I've done this, so I thought I
> might share some of what I have learned.
> You can see some pictures of what I'm discussing below in the mini
> cluster links on my web site at:
that mini-itx based cluster used to be hosted at verizon.net too ??
( in either case, some of your pics didnt work )
> I have built a cluster on standoffs, and it has worked quite well. While
> I am a relative newbie to Beowulf, I'm not new to computing and
> electronics. I have roughly 40 years experience in electronics.
what fun you've been having .. :-) 30+ here
> Hand fabricating enclosures is a lot of work.
it is gazillion times harder thanit looks .. when you want it done
right the first time ... ( each pass costs time, $$$ and agrevation and
> This needs to be a labor of love, because it is a ton of work.
an simple CNC machine ( x-y table attacched to the drill press and
laser interferometer ) should help solve the drilling problem
> On the mettal plate is a DC-DC converter board which converts 12VDC to
> the required ATX voltages used by the mini itx boards. All of the DC-DC
> converters are fed from a single 12VDC regulated power supply at a power
> distribution panel built into the top of each 6 node rack.
exactly... my power distribution panel as oyu call it is the
standard 600W 2U power supply
> My solution for this is going to involve the following: Replace the IDE
> hard drive with a laptop drive that will operate on the much cleaner 5V
i'm aiming to put 4 ide disks per blade .. ( motherboard )
> The mini cluster racks were designed to be cheap and effective.
and "stackable" and removable and airflow ( front to back or top to
bottom ) in my experiments
- and oneday, a nice 6" svga screen on the front :-)
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