WOA Issue 86
In this issue Nvidia Jetson Nano, $99 AI computer Nvidia…
Carlos Eduardo has an extended writeup on the design choices he made in building a Kubernetes cluster from 64-bit Arm single-board computers. He picked the Rock64 over the Raspberry Pi for memory and performance reasons.
“I ended up choosing the Rock64 SBC from Pine64, a quad-core A53 ARM board that can run 64bit Linux, 4GB RAM and a eMMC connector to use this kind of memory instead of the slow-as-molasses SDCards used on the Pi.”
The software side of the build uses Kubernetes 1.9.3, Weave as the overlay network, MetalLB as a load balancer, Traefik as an ingress controller, and DNS provided by DD-WRT on his Netgear router.
All of the scripts and manifests needed to do this build are available for inspection or to run yourself via Carlos’s Github repository. The writeup is quite good, detailing a set of design choices and adapting all of the necessary software for 64-bit Arm use.
The Neutis is a quad-core A53 system on module from Emlid to be debuted at next week’s Embedded World. It is based on the Allwinner H5, with a mainline Linux kernel available. For $49 (Q1) you get 8GB of eMMC storage, 512MB of DDR3 RAM, Wifi and Bluetooth, and support for Yocto and Debian. The module is designed for embedded use and has an extended temperature range.
The Allwinner H5 is also found in the FriendlyARM NanoPI NEO 2 and the Orange Pi Zero Plus 2 H5.
A development kit is planned which will bring out all interfaces to full-sized connectors for ease of prototyping.
Emlid’s booth (3A-545) at Embedded World 2018 will have more information.
Peter Robinson notes via Twitter that the Linux 4.15.4 kernel is available now with Spectre and Meltdown mitigation for arm64.
Alexandre Marangone (_alram) has built an arm64 cluster of single-board computers to test the Ceph file system. He reports: “That was fast. Ceph deployed in minutes on ARM64 SBCs using http://rook.io” Look for a full writeup to follow.
Venturebeat reports on Hatch’s plans to live-stream games from Qualcomm’s Centriq 2400 64-bit Arm systems. “Games on Hatch live in the cloud, so playing is instant — with no downloads, updates, or in-app purchases.” To pull this off they need a fast and efficient processor in the cloud, plus a low-latency network to allow for streaming.
Hatch will show off these systems at Qualcomm’s booth at the Mobile World Congress event in Barcelona from February 26 to March 1.
DockCross is a set of Docker containers that allow cross-development of C++ applications for a number of target platforms including arm64. It was developed by Kitware, and presented to the Triangle (NC) C++ Developers Group by Matt McCormick, PhD in November 2016.
A team led by Ronald P. Luijten is working on a water-cooled, high density computing system known as DOME. This densely packed server array is based on a design originally developed at IBM Zurich, and one prototype packs 768 cores into a single sled. The cooling technique provides hot water as a byproduct.
“The LS2088AZMS has eight A72 ARMv8 (ie. 64-bit) cores running at 2GHz and 32GB memory; six 10GbE, 2 SATA and 8 lanes PCIe interfaces”, writes Luijten.
Linaro announced in December that they were working on standardization of a form factor and pinout for a “system on module” configuration. Typically these SoM devices have come in a different design for each generation of vendor parts; the standardization goal is to come up with a common design that would allow for reuse of a carrier module to break out the dense pinouts into a form factor more suitable for prototyping.
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Works on Arm News is written by Ed Vielmetti and edited by Zoe Allen. It is produced weekly on Fridays and emailed on Mondays to subscribers.