Wednesday, September 16th 2020

SiFive To Introduce New RISC-V Processor Architecture and RISC-V PC at Linley Fall Virtual Processor Conference

SiFive, Inc., the leading provider of commercial RISC-V processor IP and silicon solutions, today announced that Dr. Yunsup Lee, CTO of SiFive, and Dr. Krste Asanovic, Chief Architect of SiFive, will present at the technology industry's premier processor conference, the Linley Fall Virtual Processor Conference. The conference will be held on October 20th - 22nd and 27th - 29th, 2020 and will feature high-quality technical content from leading semiconductor companies worldwide.

"Industry demand for AI performance has skyrocketed over the last few years driven by rapid adoption from the data center to the edge. This year's Linley Fall Processor Conference will feature our biggest program yet and will introduce a host of new technology disclosures and product announcements of innovative processor architectures and IP technologies," said Linley Gwennap, principal analyst and conference chairperson. "In spite of the challenges posed by the pandemic, development of these technologies continues to accelerate and we're excited to be sharing these presentations with a global audience via our live-streamed format."
SiFive's portfolio of processor Core IP is based on the free and open RISC-V instruction set architecture, and consists of four unique micro-architectures designed to enable different classes of performance, efficiency, and features for application and deeply embedded uses. Designed for scalability, SiFive Core IP can be tailored to workload requirements through the highly-configurable parameters of the architecture.

Extending AI SoC design possibilities through Linux-capable vector processors
The combination of scalable vector processing with a Linux-capable superscalar multi-core processor opens up a wide range of design points and applications for RISC-V. This new processor core features a complete implementation of the latest RISC-V Vector (RVV) extension. Presented by Dr. Krste Asanovic, SiFive Intelligence is slated for production use based on the fully ratified version of the RVV specification and enables a single processing and development environment for scalar and high-performance vector processing applications. Recently, SiFive announced a collaboration with the Barcelona Supercomputing Center to create a new API for popular compilers, further enabling applications to use the RISC-V Vector Extension currently under development for high-performance computing, artificial intelligence, and computer vision applications.

"SiFive Intelligence will offer a high-performance converged processor core capable of flexible execution of many workloads based on a single, industry-standard ISA," said Chris Lattner, President, Platform Engineering at SiFive. "This is a transformative option for the technology industry as innovators look for ways to build solutions to intense computational challenges, from deep learning in the datacenter to image, video, or audio processing at the edge."

Creating a RISC-V PC Ecosystem for Linux Application Development
New processor architectures require access to development environments to create and optimize software. The SiFive Freedom U740 next-generation SoC will enable professional developers to create RISC-V applications from bare-metal to Linux-based, including porting of existing applications. The FU740 combines a heterogeneous mix+match core complex with modern PC expansion capabilities and form factor with a suite of included tools to facilitate broad professional software development. Presented by Dr. Yunsup Lee, SiFive will debut the world's first RISC-V PC, based on the upcoming new FU740, which will be publicly demonstrated at the Linley Conference. The SiFive FU740 will enable professional developers to create RISC-V applications in a bare-metal environment, from OS to end-user application, using powerful SiFive U7-series processor cores.

Registration for The Linley Group Fall Virtual Processor Conference is free and open now for qualified registrants. The conference is intended for chip designers, system designers, equipment vendors, OEM/ODMs, service providers, press, and the financial community.
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6 Comments on SiFive To Introduce New RISC-V Processor Architecture and RISC-V PC at Linley Fall Virtual Processor Conference

#1
ratirt
That's cool. I really wanna see this RISC-V processor working in a regular PC and how the performance looks in comparison to x86 architecture.
Is there any info on what this SiFive U7 series processor cores are?
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#2
AleksandarK
ratirt
Is there any info on what this SiFive U7 series processor cores are?
Here is the U74 core, possibly the most powerful RISC-V core right now.
Posted on Reply
#3
ratirt
AleksandarK
Here is the U74 core, possibly the most powerful RISC-V core right now.
Thanks. Already got that after googling it. I'm really curious how this one compares to x86.
Posted on Reply
#4
AleksandarK
ratirt
Thanks. Already got that after googling it. I'm really curious how this one compares to x86.
Well according to SiFive this core competes with Arm mostly and their Cortex-A55. Generally, RISC-V competes in the same areas as Arm.

You can read more about interesting RISC-V cores like SonicBOOM (BoomCPU), Ariane from PULP, etc, GitHub is full of them and you can learn a thing or two, Google is your friend ;)
Posted on Reply
#5
seronx
AleksandarK
Here is the U74 core, possibly the most powerful RISC-V core right now.
Excuse me? www.sifive.com/cores/u84
U74 = A55 in performance
U84 = A72/A73 in performance
www.anandtech.com/show/15991/hot-chips-2020-live-blog-alibaba-xuantie910-riscv-cpu-300pm-pt
XT910 is also on-par with the U84 against A73. However, it uses the RVV extension and is capable of implementations of: "XT-910 can support the operation width from 64 bits to 1024 bits."

The core that is coming out should be the U87 which is a A75/A76/A77 competitor with vector units that execute the RVV 2.0 spec; github.com/riscv/riscv-v-spec/blob/master/v-spec.adoc

imho, it is probably better to wait for a FR870 system. (Freedom Revolution[FRxxx] is the successor to Freedom Unleashed[FUxxx] platforms)

Freedom Unleashed:


Freedom Revolution:


There is also other cores having not popped up yet from SiFive:


Going bottom up: E27 emb 32-bit RVV, S27 emb 64-bit RVV
E77 emb 32-bit RVV, S77 emb 64-bit RVV, U77 cli 64-bit RVV
Posted on Reply
#6
AleksandarK
seronx
Excuse me? www.sifive.com/cores/u84
U74 = A55 in performance
U84 = A72/A73 in performance
www.anandtech.com/show/15991/hot-chips-2020-live-blog-alibaba-xuantie910-riscv-cpu-300pm-pt
XT910 is also on-par with the U84 against A73. However, it uses the RVV extension and is capable of implementations of: "XT-910 can support the operation width from 64 bits to 1024 bits."

The core that is coming out should be the U87 which is a A75/A76/A77 competitor with vector units that execute the RVV 2.0 spec; github.com/riscv/riscv-v-spec/blob/master/v-spec.adoc

imho, it is probably better to wait for a FR870 system. (Freedom Revolution[FRxxx] is the successor to Freedom Unleashed[FUxxx] platforms)

Freedom Unleashed:


Freedom Revolution:

Oh forgot about that. Thanks for pointing out!
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