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  • Hi My name is Ethan Waldie

  • And this is our November 4th update video

  • I am going to tell you a little bit of how far we

  • gone in the past 4 months

  • So what you can see behind me is all 33 of our computers running

  • We do 64 RasberryPis

  • But due to the lack of sufficient power

  • And we are working on our current power supply And then we will be able to step it up to

  • 64 nodes

  • So essentially what we have been focusing on is

  • How to scale this problem up

  • Because you run into a lot of networking and technical issues

  • Especially when you start getting more and more Raspberry Pis

  • And we had to find a lot of different ways to

  • servicing the software on the Raspberry Pis

  • So I know that we run a PSSH which is a Parallel SSH client

  • Which allows us to SSH all the Raspberry Pis at once

  • especially when you want to something like power off by software

  • Because hard powering off the Raspberry Pi can sometime lead to corrupted operating systems

  • Which is obviously a pain

  • Another thing we are working on is the network

  • We reorganized the network from a DHCP to a Static IP network

  • This makes the system more manageable especially when the

  • Cisco router (up here) wasn't behaving like it the way supposed to be

  • As well we also have been working on our GalaxSEE

  • Which simulates essentially galaxies in space

  • And how it works is just like this I have a thousands stars in my galaxy and

  • I place them in random positions in my Matrix and

  • What I used is Newton's law of gravitations to calculate

  • the force in between every single particle

  • For Example 40 thousand particles I have about 40 thousand forces to calculate

  • And What I do is run the simulation over multiple time steps

  • Say I Run it over a thousand years

  • And when I run it over a thousand years You can watch the simulation in real time

  • on the monitor behind me

  • and This gives you a really good sense of how the super computer "Does"

  • You can also use the switches to watch the communication in real time

  • And because the switches have so many lights on them

  • You can actually watch between different integral methods

  • So different methods that integrate the program between the multiple computers

  • How the communication shifts from a direct communication to a Barnes-Hutch

  • Kind of simulation

  • or a PPM distribution simulation

Hi My name is Ethan Waldie

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