Performance is not the strong point of the Raspberry Pi, but when over 1000 Raspberry Pis are integrated together, it makes a difference.At the OpenWorld conference, Oracle showcased a special supercomputer that uses Raspberry Pis.
This supercomputer is equipped with 1060 Raspberry Pi units, but it does not use the latest fourth generation; instead, it uses the third generation 3B+, equipped with a Broadcom BCM2837 processor (quad-core A53 1.4GHz), VideoCore IV GPU, 1GB RAM, Gigabit Ethernet, 802.11ac, four USB 2.0 ports, and microSD.
These Raspberry Pis are divided into 21 nodes, each node is 2U in size, containing 50 Raspberry Pis each and using specially designed 3D printed brackets, assembled in just one day.
The different nodes are connected through Ubiquiti UniFi switch ports, with an uplink speed of SFP+ 10GbE, and instead of using high heat-generating and high loss PoE, they use a series of USB for power supply.
There is also a storage server in the central part, used to network boot all Raspberry Pis.
As for the use, it depends on how everyone utilizes it; Oracle demonstrated a 3×3 virtualization scenario on site.
Oracle did not disclose the actual performance of this Raspberry Pi supercomputer, and it is unlikely to be commercialized; it is more of an exploration of ideas and possibilities.
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