DIY gadget YouTuber “Bitluni” has built his own personal RISC-V megacluster in a compact design. Check it out.
Overall, the megacluster features 256 RISC-V-based microcontrollers running at an impressive 14.7 GHz single-core frequency. impressive. Note that these are RISC-V chips, not the x86-based processors found in regular PCs.
The idea behind this is to fit 16 superclusters into one interface. But that would cause problems down the road, so on board he designed his own “cluster blade” with two microcontrollers, each managing a supercluster on top. Its. Cluster blades allow Bitluni to provide a bus interface to each supercluster.
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Each cluster blade is equipped with two CH32V203 microcontrollers, and DIY gadget gurus combine eight of them to form one large uniform layer. The assembly process involved soldering each microcontroller to a circuit board and installing GPIO pins before entering the testing phase.
After a while, he discovered a major design flaw. He missed the internal clock source, causing the LEDs installed to indicate functionality to blink in random, uncertain patterns. After Bitluni tried out the program and debugged the bus synchronization, he found the functionality he was looking for in his DIY cluster.
Bitluni explained through a YouTube video description:
- Construction of this new cluster escalated rapidly. Specifically the bug I incorporated, but here are some specs:
- 256x RISC-V 48MHz
- 17x RISC-V 144MHz
- 640x GPIO
- 256x ADC
- 17x 8-bit bus
- The single-core clock rate adds up to 14.7GHz, which isn't very impressive but isn't too shabby either.