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This is team Crayowulf and here is what we worked on:

We built a mini-Beowulf cluster by connecting five Nvidia Jetson TX2 boards via Gigabit Ethernet.  We configured it’s GNU/Linux operating system (Ubuntu) and installed the software necessary to perform parallel computations.  We benchmarked the system  to compare its performance to that of other supercomputers.  We also implemented a post-quantum cryptography scheme.

We designed and fabricated a custom case that is shaped like the Cray-1 supercomputer.  This case is made primarily out of aluminum, but also  includes some 3D printed parts.   This case contains a liquid cooling system with custom-made waterblocks that pull away the heat generated by each of the Nvidia Jetsons.

 

Design

Below are CAD drawing of the case designed by the mechanical engineering members of the team.

The case was fabricated from mostly aluminum with some components, such as the vent covers, being 3D printed. A mostly complete case case can be seen below

The mechanical engineering members are also designing a liquid cooling loop for the Nvidia Jetsons. The cooling loop components and path can be seen below.

The design of the water blocks has been an iterative process. Below you can see the 3-D prints of the five prototype generations (generations increasing left to right).

The actual water blocks are be milled from aluminum.

The node network designed by the computer science and electrical engineering members of the team can be seen below.

The LEDs were integrated using an Arduino Uno. The Arduino receives temperature and usage information from the head node and uses the LEDs to display that information. A diagram of this process can be seen below.

Image Sources:

  • https://www.ussolarpumps.com/product/cpu-cooling-pump/
  • https://alexnld.com/product/g1-4-50mm-x-140mm-acrylic-cylinder-reservoir-water-cooling-tank-for-pc-liquid-cooling/
  • https://www.riotoro.com/wp-content/uploads/2016/08/riotoro_tr120ti_liquid_cpu_cooling_pc_gaming_4.jpg
  • https://www.spycameracctv.com/spycamera/netgear-16-port-gigabit-ethernet-network-switch-ip-cameras-nvrs
  • https://devblogs.nvidia.com/parallelforall/wp-content/uploads/2017/03/JTX2_Devkit.png
  • https://www.nvidia.co.uk/buy/embedded/jetson-tx2-dev-kit/
  • https://store.arduino.cc/usa/arduino-uno-rev3
  • https://www.pololu.com/product/2550