> Exactly.. but with newer, faster boards.. That is kind of the Limulus approach, but 4x65W is too much, I have been considering scaling out with lower power boards and smaller cases.
I'm getting pretty proficient with the 3D printer and I can just about fit anything into anywhere (assuming heat and power are taken into account) -- Doug > > > Jim Lux > (818)354-2075 (office) > (818)395-2714 (cell) > > From: Beowulf [mailto:beowulf-boun...@beowulf.org] On Behalf Of Hamilton, > Scott > Sent: Thursday, January 19, 2017 8:58 AM > To: beowulf@beowulf.org > Subject: Re: [Beowulf] Mobos for portable use > > The Little FE portable HPC cluster might be of interest on this topic. It > is an HPC system build with small form factor motherboards to get a 6 node > Beowulf cluster that can be powered off a standard 110 receptacle and used > as a training system in public schools as it can be run in the classroom. > The boards they use are not power house boards, but the size of the > cluster would make it possible it a battery pack to run a backpack Beowulf > cluster. Their website is www.littlefe.net<http://www.littlefe.net> > > Scott > > Scott Hamilton > Solution Architect II > Atos Big Data & Security - NAO > (573)324-7124 > scott.hamil...@atos.net<mailto:scott.hamil...@atos.net> > > From: Beowulf [mailto:beowulf-boun...@beowulf.org] On Behalf Of John > Hearns > Sent: Thursday, January 19, 2017 9:35 AM > To: beowulf@beowulf.org<mailto:beowulf@beowulf.org> > Subject: Re: [Beowulf] Mobos for portable use > > Jim, > I am a big fan of the Xeon-D but they take 45Watts for the CPU alone. Full > featured Xeon and two 10gig ports on board though. > > > I would be looking at one of the Nvidia boards intended for in-car > systems. > > > > ________________________________ > From: Beowulf [beowulf-boun...@beowulf.org] on behalf of Lux, Jim (337C) > [james.p....@jpl.nasa.gov] > Sent: 19 January 2017 14:36 > To: beowulf@beowulf.org<mailto:beowulf@beowulf.org> > Subject: [Beowulf] Mobos for portable use > This comes up every few years.. > Someone at work was complaining at lunch that the latest laptops have nice > screens but don't have much memory, largely because they want to keep the > battery size reasonable ("thin is in").. my suggestion was "well, why > don't you just use your laptop as the user interface to a bigger more > powerful compute node/nodes" > That devolved into a "but what I really want is the horsepower of my > desktop machine".. > > Leaving aside the "use the network to connect to a CPU somewhere else" > > We then started discussing whether anyone makes motherboards with high > performance processors, lots of RAM, maybe a GPU for computation (but no > display hooked up), but none of the other stuff, and then run off > batteries.. > Like a battery powered Intel NUC, but with way more horsepower > The top of the line NUC seems to have a 19V, 65W power supply.. > arstechnica says they burn about 50W running full out. Let's say you > want to run for 4 hours, so you need 200 Whr. > > A 18650 Li battery is 3.4 Ah @ 3.6V, that's about 23 Wh, so you'd need 9 > of them. That's not all that big a package.. Arranged in a row, they'd be > 65mm by 162 mm.. > > Prismatic (brick shaped) batteries are 350 Wh/Liter, 135Wh/kg.. so 200 Wh > is going to be about half a liter (50x100x100 mm) and 1.5 kg > > > > > > James Lux, P.E. > Task Manager, DHFR Space Testbed > Jet Propulsion Laboratory > 4800 Oak Grove Drive, MS 161-213 > Pasadena CA 91109 > +1(818)354-2075 > +1(818)395-2714 (cell) > > Any views or opinions presented in this email are solely those of the > author and do not necessarily represent those of the company. Employees of > XMA Ltd are expressly required not to make defamatory statements and not > to infringe or authorise any infringement of copyright or any other legal > right by email communications. Any such communication is contrary to > company policy and outside the scope of the employment of the individual > concerned. The company will not accept any liability in respect of such > communication, and the employee responsible will be personally liable for > any damages or other liability arising. XMA Limited is registered in > England and Wales (registered no. 2051703). Registered Office: Wilford > Industrial Estate, Ruddington Lane, Wilford, Nottingham, NG11 7EP > > -- > Mailscanner: Clean > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > -- Doug -- Mailscanner: Clean _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
