How to build your own 1:10 scale Cray-1 supercomputer

How to build your own 1:10 scale Cray-1 supercomputer

Or an approximation for about $100 — "using some wood, paint, and a Xilinx FPGA development board. "

http://www.extremetech.com/extreme/191877-how-to-build-your-own-110-scale-cray-1-supercomputer

It seems Fenton has only managed to get the FPGA up to 50MHz so far, too — just shy of the original supercomputer’s 80MHz. This is more related to the fact that Fenton’s Spartan-3E only cost about $100 — if he’d opted for a more expensive FPGA, 80MHz would’ve been easy to hit.

I got partway through a class in Cray Assembler programming, once. The tricks were apparently not so much in instruction selection, as in scheduling the instructions and memory accesses so that you deliver instructions to each of the ALUs just as it finished the prior instruction/memory access...

westfw:
in scheduling the instructions and memory accesses so that you deliver instructions to each of the ALUs just as it finished the prior instruction/memory access…

that’s the main and most interesting part of the whole.