Google Summer of Code 2024 Celebrating our 20th Year!

Thursday, November 9, 2023

Google Summer of Code (GSoC) will be celebrating its 20th anniversary with our upcoming 2024 program. Over the past 19 years we have welcomed over 19,000 new contributors to open source through the program under the guidance of 19,000+ mentors from over 800 open source organizations in a wide range of fields.

We are honored and thrilled to keep GSoC’s mission of bringing new contributors into open source communities alive for 20 years. Open source communities thrive when they have new contributors with fresh, exciting ideas and the renewed energy they bring to these communities. Mentorship is a vital way to keep these new contributors coming into the open source ecosystem where they can see collaboration at its finest from their community members all across the world, all with different backgrounds and skills working towards a common goal.

With just over a week left in the 2023 program, we have had one of our most enthusiastic groups of GSoC contributors with 841 GSoC contributors completing their projects with 159 open source organizations. There are 68 GSoC contributors wrapping up their projects. A GSoC 2023 wrap up blog post will be coming late this month with stats and quotes from our contributors and mentors.

Our contributors and mentors have given us invaluable feedback and we are making one adjustment around project time commitment/project scope. For the 2024 program, there will be three options for project scope: medium at ~175 hours, large at ~350 hours and a new size: small at ~90 hours. The idea is to remove the barrier of available time that many potential contributors have and open the program to people who want to learn about open source development but can’t dedicate all or even half of their summer to the program.

As a reminder, GSoC 2024 is open to students and to beginners in open source software development that are over the age of 18 at time of registration.

Interested in applying to the Google Summer of Code Program?

Open Source Organizations

Check out our website to learn what it means to be a participating mentor organization. Watch the GSoC Org Highlight videos and get inspired about projects that contributors have worked on in the past.

Take a look through our mentor guide to learn about what it means to be part of Google Summer of Code, how to prepare your community, gather excited mentors, create achievable project ideas, and tips for applying. We welcome all types of open source organizations and encourage you to apply—it is especially exciting for us to welcome new orgs into the program and we hope you are inspired to get involved with our growing community. In 2024, we look forward to accepting more artificial intelligence/machine learning open source organizations.

Want to be a GSoC Contributor?

New to open source development or a student? Eager to gain experience on real-world software development projects used by thousands of people? It is never too early to start thinking about what kind of open source organization you’d like to learn more about and how the application process works!

Watch our ‘Introduction to GSoC’ video to see a quick overview of the program. Read through our contributor guide for important tips from past participants on preparing your proposal, what to think about if you wish to apply for the program, and explore our website for other resources. Continue to check for more information about the 2024 program once the 2023 program ends later this month.

Please share information about the 2024 GSoC program with your friends, family, colleagues, and anyone you think may be interested in joining our community. We are excited to welcome new contributors and mentoring organizations to celebrate the 20th year of Google Summer of Code!

By Stephanie Taylor – Program Manager, Google Open Source Programs Office

Open source PDKs joining the Linux Foundation’s CHIPS Alliance

Wednesday, November 8, 2023

In November 2020, we launched our Open Source MPW Shuttle Program to make it easier for researchers and developers to build custom silicon and to enable a thriving ecosystem around open source hardware. Working with our partner, SkyWater Technology, we released the first foundry-supported open source process design kit (PDK) for their 130nm mixed-signal CMOS technology (SKY130), then welcomed GlobalFoundries as a partner with the release of an open source PDK for their 180nm MCU process (GF180MCU).

Then, to give researchers and developers a way to validate and prove their designs made with the PDKs, we partnered with Efabless to fund a series of no-cost manufacturing shuttles for open source designs. In support of this program, Efabless released an end-to-end RTL to GDS design stack called OpenLane that is open source, freely available, and fully supported by their manufacturing platform. OpenLane is now being maintained as part of the OpenROAD Project. When combined with open source PDKs, a design’s verification results can now be freely shared and easily replicated by other researchers and developers, which has enabled a new collaborative model to evaluate and iterate on ideas.

Pictures of a full wafer from the first SKY130 shuttle, a tray of bare dies, and a project bring-up from SKY130 MPW-2.
Pictures of a full wafer from the first SKY130 shuttle, a tray of bare dies, and a project bring-up from SKY130 MPW-2.


The Open Source MPW Shuttle Program has been a success and we’re excited by the growth we’ve seen in this ecosystem. Since its inception, the program has launched eight shuttle runs on SKY130 and an initial test run on GF180MCU, the last of which are being packaged now. With 40 slots per shuttle, we’ve manufactured 360 designs out of over 600 submissions from 19 countries around the world.Graph showing number of designs submitted to Open Source MPW shuttles across versions 1 through 8

The program has also fostered collaboration between the open source community and Google. We’ve learned valuable lessons from designers who participated in the program giving feedback and filing hundreds of bugs and pull requests. These have helped to improve each successive run and to make the platforms and tools more feature-complete.

Elsewhere in the ecosystem, we’re excited by the release of new open source PDKs from foundries like the 130nm BiCMOS process from IHP, the SOI-CMOS PDK from Minimal Fab, and also by the publication of new semiconductor research using open source PDKs. Multiple universities have incorporated open source PDKs into their curriculum, and last year, NIST adopted the SKY130 PDK to migrate their existing planarized wafer designs for nanotechnology research.

Announcing GF180MCU MPW-1

We’ve just launched a new MPW-1 shuttle for GF180MCU in our partnership with Efabless. Submissions will be accepted until December 11th, targeting delivery in early 2024.

Graph showing number of designs submitted to Open Source MPW shuttles across versions 1 through 8

Next Steps

The open source silicon ecosystem is continuing to grow and evolve. After GF180 MPW-1 concludes, the open source SKY130 and GF180MCU PDKs will be joining the Linux Foundation’s CHIPS Alliance under a new working group to foster continued open source PDK development, and we expect future PDK releases will join as well. This will help with the transition to a broader governance model that enables more participation by industry, academia and the community, opening the possibility for larger shuttle programs with multiple sponsors as the ecosystem continues to grow.

Low-cost manufacturing options will continue to be available through this transition, both through commercial shuttle offerings like Efabless’ ChipIgnite program and also through educational efforts like TinyTapeout.

Thank you

Lastly, we’d like to thank the open source community. Your feedback has been invaluable to the success so far, and has helped to improve the tools and documentation to be more user-friendly. We have also seen contributions from the community in the form of hundreds of new and fully manufacturable designs, which have helped to expand the range and capabilities of open source hardware available to the community. We look forward to continuing partnerships to build a thriving ecosystem around open source silicon.

By Aaron Cunningham – Technical Program Manager, Core Hardware Tools

Project Open Se Cura Open Source Announcement

Tuesday, November 7, 2023

As AI permeates our lives, developing secure, scalable, and efficient compute systems is crucial for safe and trustworthy AI experiences. However, hardware advancements lag behind machine learning (ML) models and software development, hindering the deployment of secure and efficient full-stack systems. Furthermore, consumer demand for smaller devices outpaces battery technology advancements, constraining the power envelope and limiting the capabilities of deployable AI systems.

Towards these challenges, Google is launching Project Open Se Cura, an open-source framework to accelerate the development of secure, scalable, transparent and efficient AI systems. Previously known internally as Project Sparrow, Project Open Se Cura is a testament to our commitment to open-source development. Our goal with Open Se Cura is to evolve a set of open-source design tools and IP libraries that will accelerate the development of full-stack systems with ML workloads through co-design and development. This will enable us to better center system designs around security, efficiency, and scalability, empowering the next generation of AI experiences.

This work was developed in close collaboration with our partners such as lowRISC, Antmicro and VeriSilicon for key parts of the tooling and infrastructure. lowRISC has contributed a transparent root of trust, along with development and integration tools, ensuring a secure foundation for the project. Antmicro has contributed system simulation tooling with Renode and expertise in open-source system-level software. VeriSilicon has contributed expertise in IP design, silicon design, BSP development and commercialization. And together, we’ve used these tools for the first time to extend our IP library with secure ML capabilities and generated a proof of concept for a low-power AI system.

To accelerate open development and transparency of AI system design, we’re releasing our entire code base for developers to consider -- you can get started by following the instructions in the

Going forward, we’ll continue to evolve Open Se Cura in the open and seek to onboard additional partners, such as Cambridge University (for CHERI innovations) and the University of Michigan (for low-power and generative AI). We are excited to explore what we can build with these new tools and hope the open source community will join us and contribute.

We look forward to working with the open-source community to drive new innovations and new AI experiences with secure, scalable and efficient ML systems.

Join us and our partners, Brian Murray from VeriSilicon and Michael Gielda from Antmicro, for a technical deep dive at the CHIPS Alliance Technology Update. This hybrid workshop event will be held from 9:10 to 10:00 AM PST on November 9th at Google's Sunnyvale office.

By Kai Yick – Research Cerebra Open Source team