Tom Spyrou

Expect more "We design chips with open soruce EDA tools." in the future. Here is an example from Mexico.

Explore the Bazel-orfs project that provides a set of @GoogleOSS @bazelbuild rules for wrapping Physical Design Flows, developed by Antmicro & Ascenium. Learn how Bazel-orfs enhances @OpenROAD_EDA Flow Scripts with reusable macros and improved caching antmicro.com/blog/2024/08/b…

Happy Birthday Tom!!! Thank you so much for your generous support every year ❤️ We're so excited to, with your leadership support, give high schoolers an opportunity to build their first ever PCB.

My son sends a Happy Thanksgiving recipe! foodbeast.com/news/filipino-…

OpenROAD @OpenROAD_EDA tools will soon be featured in VLSI Design courses at the UCSC Silicon Valley Extension ! We will be offering courses on Physical design, Timing analysis and more. Stay tuned here for details: theopenroadproject.org

@siliconcompiler @OpenROAD_EDA @mithro @proppy @matthewvenn The scripts that drive openroad are tcl with the params coming from json.

We created an SC based Makefily.py that emulates the Makefile behavior in @OpenROAD_EDA, giving us access to OpenRoad's awesome suite of tests and benchmarks.😎 github.com/The-OpenROAD-P… @mithro @tomspyrou @proppy @matthewvenn

@OpenROAD_EDA The DAC-2022 #59DAC "Open-Source EDA and Benchmarking Summit" Birds-of-a-Feather session is July 12, 2022 7-10pm, Room 3000, Moscone West in SF. Link: 59dac.conference-program.com/session/?sess=…

Interested in doing a Ph.D. or a postdoc in the Silicon VLSI and computer architecture area. Contact me! I have immediate openings for several graduate students. Come revolutionize the world with new era of System on Chip design! #VLSI #gradschool #comparch #SoC #comparith

Had a hard time tracking all the great open source HW projects out there, so I made another list. I am sure I missed some, PRs needed to complete list!! github.com/aolofsson/awes…

Super excited about the work @proppy is doing to put ASIC + FPGA tools into Jupyter notebooks! You can then use them for free on @Google's Colab without having to install tools locally. See the recent interview with @matthewvenn for more info - youtu.be/yCyOVq5ZHYg

🚨WHO WILL WIN? 🚨 … 8 contestants enter the kitchen, only ONE will leave victorious! ⚔️NEW Season of Kitchen League: Challengers vs Champs, 🔴Fridays on @CrownChannel network 🔴

@proppy Is this with OpenROAD?

so much space left to explore!

current status: SERV'ing

This is some very cool work from @td_ene about understanding (and then hopefully improving) adder performance in the open source EDA tooling like @YosysHQ, @OpenROAD_EDA and others!

Good opportunities for new hardware designers. opensource.googleblog.com/2016/03/someth… opensource.googleblog.com/2019/09/unleas…

A great end to the week. When taping out the #Microwatt processor for an upcoming #sky130 shuttle, we hit some test case failures. Managed to isolate it to a synthesis issue in #GHDL. Submit a bug report, and Tristan Gingold commits a fix within hours. github.com/ghdl/ghdl/issu…

Thanks to @efabless, @Google and @SkyWaterFoundry for the chance to tape out #Microwatt, a 64 bit @OpenPOWERorg CPU, on #sky130_mpw1. Thanks also to the @OpenROAD_EDA and Openlane projects for the tools to make this possible. Open Hardware built with Open Source tools.

#OpenFASOC have recently released #cryogenic test structures that we hope @NIST will be using on #sky130_mpw -5. The generator is using all @SkyWaterFoundry 130nm open-source standard cells flavors and uses @OpenROAD_EDA tooling capabilities!

@OlofKindgren For looking at a layout you may find it easier to run openroad -gui and load the lef/def in. You can see the netlist objects and def objects like tracks and blockages more easily.

A few notes: 1. I have absolutely no clue how to use klayout. I just clicked on things until it looked good enough 2. I assigned an area that was way too big, which is why it looks a bit weird.

Hajimemashite Misato-san! Since @BitlogIT was kind enough to run SERV through a 65nm process I thought I'd take his Misato @risc_v core for a spin with OpenLANE + Sky130 PDK. This is also probably the first Amaranth design to be built with OpenLANE using FuseSoC+Edalize

Open source silicon creation projects were rocking those growth curves in 2020 and 2021. It shows the massive demand here. I can't wait to see what happens in 2022! (via @StarHistoryHQ) @enjoy_digital @SpinalHDL @YosysHQ @CHIPSAlliance @chisel_lang

@OlofKindgren @SkyWaterFoundry Yes, opensta can load a gzipd version if that helps. Normally companies have one copy on the network that is readable by all designers to avoid multiple copies so the size becomes irrelevant when amortized across users. In our distributed open source model that doesn't help much.

@tomspyrou @SkyWaterFoundry That's definitely worth considering. Not sure why it's not done already today to be honest. That whole tree of repos is a slightly esoteric setup, TBH. One downside is that it will vastly increase the repo size though. Those liberty files are incredibly chatty.

Anyone good at speeding up Python code? Turns out that building liberty models for the @SkyWaterFoundry PDK takes about 30 minutes thanks to spending all that time running this ~1kLOC Python script github.com/google/skywate… Did an initial profiling here gist.github.com/olofk/5393aa66…