4 ms·
> The Performance P270 slots in as the lower-performance eight-stage, dual-issue, in-order processor that supports RISC-V Vector Extension v1.0, which SiFive sa
by jstrong 5y ago
> The Performance P270 slots in as the lower-performance eight-stage, dual-issue, in-order processor that supports RISC-V Vector Extension v1.0, which SiFive says makes it an ideal candidate to replace SIMD architectures.
I did not understand this part. "lower-performance" and "in-order" suggest this is a simpler processor, but it could replace SIMD? is SIMD used in embedded contexts?
(asking for clarification, not trying to suggest the article is wrong.)
- nickik 5y agoRISC-V Vector is a form of SIMD. So this is a simple(ish) processor but you can lots of calculation because of the SIMD. Yes, it is used in embedded context, processing of input from sensor for example. Local machine learning is all the hype right now. "Edge Computing" is the typical buzz word.
- oscardssmith 5y agoOut of order execution requires a ton of logic (you're basically adding a small optimizing compiler in silicon). This takes a bunch of area and leads to more complicated data paths. The reason high performance cores use it is that it greatly reduces pipeline stalls, and as such can make your cpu several times faster.