Discover and read the best of Twitter Threads about #VHDL
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1/11 Ever wondered how Supercomputers multiply? Efficient multiplication is a critical part of traditional high performance computing as well as machine learning. Let's look at the #IBM Blue Gene/Q, which led the #Top500 and #Green500 in the late 2000s.
en.wikipedia.org/wiki/IBM_Blue_…
en.wikipedia.org/wiki/IBM_Blue_…
2/11 IBM Open Sourced the core to Blue Gene/Q (the @OpenPOWERorg A2I) so it offers a fantastic insight into a CPU that taped out at frequency and in volume. The #VHDL for the core is available at:
github.com/OpenPOWERFound…
github.com/OpenPOWERFound…
3/11 We quickly see that it uses a few well established techniques for optimising multiplication. The first step uses Booth encoding:
en.wikipedia.org/wiki/Booth%27s…
en.wikipedia.org/wiki/Booth%27s…
