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DIGITAL TEAM


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01

WHAT WE DO


WEB MARKETING


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UI & UX DESIGN


Digital Team is free responsive Bootstrap v3.3.5 layout from Tooplate. Images are from Pixabay free photo website.

ECOMMERCE


You can edit and use this template for your websites. Please tell your friends about Tooplate. Thank you for visiting our website.

MOBILE APP


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SOCIAL MEDIA


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RESPONSIVE LAYOUT


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02

OUR AGENCY


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DIGITAL TEAM

Best Design Agency from California

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03

TALENTED TEAM


 关于GRVI Phalanx ,它是一个大规模并行RISC-V FPGA加速器,由GRVI和Phalanx结合而成。其中GRVI是一个FPGA实现的RISC-V RV32I软处理器核,同时也是手工艺映射和处理元素性能/面积俱最佳的并行处理器。GRVI实现了一个2或3级的单流水线,在Xilinx UltraScale FPGA板卡中消耗320个6-LUT,目前在一个Kintex UltraScale(-2)板卡的内嵌BRAM中按照最佳布局并采用最佳配置时的最高运行频率可达300-375MHz。而Phalanx是一个大规模并行FPGA加速器框架,主要用来减少在开发和管理FPGA加速器时所需付出的消耗和努力。此外Phalanx亦是一个大量软核集群和加速器核的混合物,在具有Hoplite路由的片上网络中可以提供额外的存储和I/O接口。关于GRVI Phalanx的详细信息可以在2016年IEEE第24届国际FCCM研讨会上发表的题为《GRVI Phalanx:A Massively Parallel Risc-V FPGA Accelerator Accelerator》的论文中查看。

GRVI processing element(PE)datapath RPM

GRVI processing element(PE)datapath RPM

1680个开源ISA RISC-V处理器核于Virtex UltraScale+ VU 9P FPGA运行:

博主Jan Gray近期发表了一片关于千核RISCV处理器的博客,文中提到目前已经可以在Xilinx Virtex UltraScale+ VU9P(是一个中等规模的Virtex UltraScale+ FPGA板卡)板卡上同时并行运行1680个开源的RISC-V处理器核,并成功测试GRVI Phalanx大规模并行加速器框架。据博主所述,这是首例千核RISC-V成功实现运行的应用,同时也是无论使用什么技术在一个芯片上同时运行32bit RISCV核数目最多的应用。

下面是这1680个RISCV核运行在FPGA板卡上的场景图:

强强联合:GRVI Phalanx实现千核处理器+加速器完成大规模并行处理

这个包含1680个核的GRVI Phalanx不仅是第一个可操作的千核RISC-V,还是第一个运行在FPGA上的上千个32位RISC的核,也是单芯片上可以同时运行32位RISC核数目最多的组合。

GRVI Phalanx的设计由210个处理器集群组成,每个集群中包含了8个开源的RISC-V处理器核,128KB的多端口RAM,以及一个300-bit的Hoplite NOC路由。下图是一个Phalanx 集群的结构框图:

8 GRVI Cluster and 288-bit payload Hoplite router

8 GRVI Cluster and 288-bit payload Hoplite router

不过, 需要注意的是,虽然RISC-V 精简指令集是开源的,且在其官网 还有大量基于RISC-V指令集的开源实现,但是GRVI Phalanx加速框架却不是开源的。

总结:

千核处理器的概念最先是由IBM提出的,同时IBM还研发了具有1025个核的低功耗高性能的微处理器。可见在追求单核运行速度到极致的情况下,现在已经涌现出多核,甚至是千核的并行运算,而在单FPGA芯片上就可以成功运行单核32位的千核处理器,足见Xilinx FPGA的能力不容小觑。

 

来源:电子发烧友     时间:2017年02月15日
04

OUR PORTFOLIO


05

OUR PRICING


BASIC

$150 per year

  • 100 GB Cloud Storage
  • 5 Pro Websites
  • 10 Secured Emails
  • 24-hour Support

BUSINESS

$260 per year

  • 200 GB Cloud Storage
  • 10 Pro Websites
  • 20 Secured Emails
  • 30-Minute Support

PROFESSIONAL

$380 per year

  • 500 GB Cloud Storage
  • 20 Pro Websites
  • 40 Secured Emails
  • Live Support
06

CONTACT US


CONTACT INFO

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EMAIL

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