The Amp Hour

Open Source Mindset with Michael Gielda

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Welcome back, Michael Gielda of Antmicro!

  • Michael was on episode 519 talking about simulating embedded hardware using Renode
  • He returned to talk about other projects that Antmicro is working on, especially those that are open source. The open source projects are indexed on the Antmicro Open Source Portal.
  • Very niche stuff might be closed source, but people are surprised by what others might be interested in (if it were open sourced)
  • Renode was the topic of our last interview
  • AI is a new target of open source work. Antmicro recently released the Kenning framework
  • Why another standard? Relevant XKCD
  • Testing & benchmarking different AI models/frameworks across platforms from different vendors e.g. Nvidia, Modivius or Google Coral
  • Black boxes are bad for users
  • LLVM has hundreds of people looking at the project
  • CHIPS Alliance
  • Brian Faith from QuickLogic,first ever FPGA vendor to adapt open source flow
  • Sammy Cheung from Efinix
  • Interchange format for FPGA tooling
  • Virtex Ultrascale PCIe
  • What happens when a proprietary licensed company goes bankrupt?
  • Renode is being used for pre-silicon SoC development
  • Covered Renode-based CI’s in previous episode
  • Open source toolchain stuff
  • RISC-V: The ISA is common, but the cores are different.
  • What is the center of gravity in the RISC V world? Many people are using SiFive.
  • SiFive uses Chisel
  • ETH Zurich – another center of gravity - cores written in SystemVerilog
  • Place for diversity
    • Chisel (e.g. Antmicro's DMA core)
    • SystemVerilog - enabling use of SystemVerilog code in open source tools
    • UVM – Universal Verification Methodology - recent progress with dynamic scheduling in Verilator
    • Migen
    • Zephyr bluetooth
    • Abstraction as a response to chip shortage
    • What if you wanted to do a fully open source flow? Let’s do a contrived security camera design example:
      • Xilinx 7 series or Lattice ECP5 or Crosslink-NX
      • Open source HWhw board using the Nvidia Jetson, manufactured by past guest Chris Osterwood
      • VexRiscv
      • Linux + LiteX
      • LiteDRAM
      • Ethernet core – everything but the phy
      • Co simulate with Verilator
      • Renode
      • Episodes for open source toolchain
        • Tim
        • Claire
        • Piotr
        • Cutting down on iteration
        • Chris mentions a past job that had 6 hour build cycles
        • Accelerating workflows using compute power and parallelizing dev processes
        • Working with GCP & building custom self-hosted GitHub runners
        • Chip design using AI (Google)
        • Scalenode
        • ARVSOM
        • BeagleV
        • DC-SCM FPGA-based board management controller
        • Open Compute Project
        • Row Hammer
        • Interested in working with Antmicro? Get in touch!
          • ...more
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