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Welcome to the OCP Open Domain-Specific Architecture Sub-Project under the OCP Server Project.

Project Leadership

Sub Project Lead

- Bapi Vinnakota

General Information

Charter (TBD)

- Intro to ODSA
- ODSA Open Accelerator Architecture
- OCP Presentation Template - please contact Michael Schill for a copy

Open Domain-Specific Accelerators: What Are They & Why Should They Matter?

- ODSA webinar with Light Reading: December 19th, 2018
- ODSA White Paper

Get Involved

- ODSA Chiplet Usage Survey
- Mailing List
- OCP website (Server Project)
- OCP Website (ODSA Sub-Project)
- OCP Calendar
- Chiplet Cost Model (Business Working Group)

Active Projects

Project Objective Point of Contact Meeting Schedule Call Link
PHY Analysis PHY requirements, PHY analysis & cross-PHY abstraction (PIPE) Robert Wang (PIPE spec)
BoW Interface No technology license fee, east to port inter-chiplet interface spec Bapi Vinnakota Weekly on Wednesday 9am Pacific Call Link
Prototype Product that integrates existing die from muktiple companies into one package Jayaprakash Balachandran Weekly on Tuesdays 8AM. Pacific Call Link
Chiplet Design Exchange Open chiplet physical description format Jawad Nasrullah Weekly on Thursday 1:30pm Pacific Call Link
Link and Network Layer Interface and implementations - requirements and proposals Bapi Vinnakota Weekly on Thursdays 9am Pacific Call Link
BoW Test Chip Test requirements for an open chiplet interface Bapi Vinnakota Weekly on Wednesday 10am Pacific Call Link
Chiplet Monitoring Monitoring infrastructure for chiplets TBD TBD
Business workflow Chiplet business models Ravi Agarwal, Marek Hempel Weekly on Friday 9am Pacific Call Link
Overall Sub-Project meeting Bapi Vinnakota Weekly on Fridays 8am Pacific Call Link

Active documents

Type Description Version Submit Date Contributor License Notes
White Paper DEVELOPING AN OPEN CHIPLETS MARKETPLACE: CHALLENGES AND OPPORTUNITIES 1.0 2/23/2022 Microchip, IBM, Meta, JCET, ARM, Samsung, Google, Teradyne Creative Commons License
Introduction odsa_ocp_intro.pdf n/a 2/27/19 Netronome n/a Presented in 2/27 Server WG call. Introduction to ODSA sub-group under Server Project. Future entries will be in the ODSA WIki at:
White Paper (Draft) Bunch of Wires Interface Proposal Rev 0.7 10/26/19 Authors: Mark Kuemerle, Ramin Farjad, Bapi Vinnakota OCP CRLA
White Paper (Released) Developing an Open Chiplets Marketplace: Challenges and Opportunities n/a 2022 Authors: ARM, Google, IBM, JCET, Meta, Microchip, Samsung Electronics, Teradyne Creative Commons License

Meeting Schedule & Call Link

  • Weekly Main ODSA Call: Every Friday at 8am Pacific

Call Link (visit the OCP ODSA Sub-Project Calendar for other dial-in information)

  • ODSA Workstream Calls
- PoC workstream meeting - Tuesdays 8 AM Pacific
- Bunch of Wires meeting - Wednesdays 9 AM Pacific
- Bunch of Wires Test Chip meeting - Wednesdays 10 AM Pacific
- Link Layer meeting - Thursday 9 AM Pacific

Worksteam Calls Link

These meeting are recorded via audio and video. By participating you consent that these recordings may be made publicly available. Any presentation materials, proposals and meeting minutes are published on the respective project's wiki page and are open to the public in accordance to OCP's Bylaws and IP Policy. This can be found at If you have any questions please contact OCP.

Upcoming In Person Meetings

- ODSA Calendar

Recordings from Past Calls

Click HERE to view recordings from the various ODSA Workstream Calls

- May 21, 2023 Recording
- May 18, 2023 Recording
- May 12, 2023 Recording
- May 5, 2023 Recording
- April 28, 2023 Recording
- April 21, 2023 Recording
- April 14, 2023 Recording
- April 7, 2023 Recording
- March 31, 2023 Recording
- March 24, 2023 Recording
- March 17, 2023 Recording
- March 10, 2023 Recording
- March 3, 2023 Recording
- Feb 24th, 2023 Recording
- Feb 17th, 2023 Recording
- Feb 10th, 2023 Recording
- Feb 3, 2023 Recording
- Jan 20, 2023 Recording
- Jan 13, 2023 Recording
- Jan 6, 2023 Recording
- Dec 16th, 2022 Recording
- Dec 9, 2022 - Not Recorded
- Dec 2nd, 2022 Recording
- November 18th, 2022 Recording
- November 11th, 2022 Recording
- November 4th, 2022 Recording
- October 28th, 2022 Not Recorded
- October 21st, 2022 Not Recorded
- October 7th, 2022 Recording
- Sep 30th, 2022 Recording
- Sep 23rd, 2022 Recording
- Sep 16th, 2022 Recording
- Sep 9th, 2022 Recording
- Sep 2nd, 2022 No Recording
- Aug 26th, 2022 Recording
- Aug 19th, 2022 Recording
- Aug 12th, 2022 Recording
- Aug 5th, 2022 Recording
- July 29th, 2022 Recording
- July 22nd, 2022 Recording
- July 15th, 2022 Recording
- July 8th, 2022 Recording Presentation
- July 7th, 2022 Recording
- June 24th, 2022 Recording
- June 17, 2022 Recording
- June 15, 2022 Recording
- June 10, 2022 Recording
- June 3rd, 2022 Recording
- May 20th, 2022 Call was not recorded
- May 13th, 2022 Recording
- May 11th, 2022 Recording
- May 6th, 2022 Recording
- May 4th, 2022 Recording
- April 29th, 2022 Recording
- April 22nd, 2022 Recording
- April 15th, 2022 Recording
- April 8th, 2022 Recording GLink-2.5D and GLink-3D By Igor Elkanovich, GUC CTO Slides
- April 1st, 2022 Recording Slides - Mixing Open Source and Embedded Ecosystem IP for the future of HPC John Shalf, Department Head for Computer Science, Lawrence Berkeley National Laboratory
- March 25th, 2022 Recording Minutes
- March 18th, 2022 Recording Minutes
- March 11th, 2022 Recording Minutes
- February 25th, 2022 Recording Minutes
- February 18th, 2022 Recording Minutes
- February 4th, 2022 Recording Minutes
- January 28th, 2022 Recording Minutes
- January 21st, 2022 [Recording Minutes
- January 14th, 2022 Recording Minutes
- January 7th, 2022 Recording Minutes
- December 17th, 2021 Recording Minutes
- December 10th, 2021 Recording
- December 3rd, 2021 Recording Minutes Slides
- November 19th, 2021 Recording
- October 29th, 2021 Recording
- October 22nd, 2021 Recording Slides
- October 15th, 2021 Recording
- September 24th, 2021 Recording
- September 17th, 2021 Recording
- September 10th, 2021 Recording
- August 27th, 2021 OCP ODSA Workshop - Prototyping Chiplet Based Open Data Accelerators: Recording & Slides
- August 20th, 2021 Recording Business Workstream Recording Minutes
- August 13th, 2021 Recording "OpenChiplet: An Open Source Specification for Chiplet Marketplace" Rohit Mittal, Google
- August 6th, 2021 Recording Minutes
- July 30th, 2021 Recording Minutes
- July 23rd, 2021 Recording Minutes
- July 16th, 2021 Recording Minutes
- July 9th, 2021 Recording
- June 25th, 2021 Recording Minutes
- June 18th, 2021 Recording Minutes
- June 11th, 2021 Recording
- June 4th, 2021 ODSA Main Meeting CDX Update, Business Workstream Meeting
- June 3rd, 2021 ODSA Link Layer Call Recording
- May 21st, 2021 Recording Minutes
- May 14th, 2021 Recording Minutes
- May 7th, 2021 Recording Minutes
- April 30th, 2021 Recording Minutes
- April 23rd, 2021 Recording Minutes
- April 16th, 2021 Recording Minutes
- April 9th, 2021 Recording
- April 2nd, 2021 Recording Minutes
- March 26th, 2021 Recording Minutes
- March 19th, 2021 Recording Minutes
- March 12, 2021 ODSA Enablement Workshop presented by ASE
- February 26th, 2021 Recording Minutes
- February 5th, 2021 Recording Minutes
- January 29th, 2021 Recording Minutes
- January 22nd, 2021 Recording OAI Overview for ODSA OCP NIC Introduction for ODSA
- January 15th, 2021 Recording Minutes
- January 8th, 2021 Recording Minutes
- December 18th, 2020 Recording
- December 11th, 2020 Recording Minutes
- December 4th, 2020 Recording Minutes
- November 20th, 2020 Recording Minutes Signaling for wafer-scale systems (Subramanian Iyer, UCLA)
- November 6th, 2020 Recording
- October 30th, 2020 Recording Minutes
- October 23rd, 2020 Recording Minutes
- October 16th, 2020 Recording Minutes
- October 9th, 2020 Recording Minutes
- October 2nd, 2020 Recording Minutes
- September 25th, 2020 Recording Minutes
- September 18th, 2020 Recording Minutes Synopsys Multi-Die System Presentation (Rita Horner)
- September 11th, 2020 Recording Minutes
- August 28th, 2020 Recording Minutes
- August 21st, 2020 Recording Minutes
- August 14th, 2020 Recording Minutes
- August 7th, 2020 Recording Minutes
- July 31st, 2020 Recording Minutes
- July 24th, 2020 Recording Minutes HIR Briefing
- July 17th, 2020 Recording Minutes
- July 10th, 2020 Recording Minutes
- June 26th, 2020 Recording Minutes NXP’S SERIAL DIPORT - Intro to ODSA (Gary Miller)
- June 12th, 2020 Recording Minutes
- June 5th, 2020 Recording Minutes
- May 29th, 2020 Recording Minutes
- May 22nd, 2020 Recording Minutes
- May 8th, 2020 Recording Minutes CDX Chiplet Power Model Presentation
- May 1st, 2020 Recording Minutes ODSA PoC Software development outline ODSA: Seeds of future silicon innovation
- April 24th, 2020 Recording Minutes
- April 3rd, 2020 Recording Minutes SuperMicro Corporate Profile
- March 27th, 2020 Recording Minutes ODSA Enabling Heterogenous Integration: Eelco Bergman - ASE Group
- March 20th, 2020 Recording Minutes
- March 13th, 2020 Recording Minutes
- March 6th, 2020 Recording Minutes
- February 28th, 2020 Recording Minutes CEI-112G-XSR-PAM4 Presentation
- February 14th, 2020 Recording Minutes
- February 7th, 2020 Recording Minutes
- January 31st, 2020 Recording Minutes
- January 24th, 2020 Recording Minutes
- January 17th, 2020 Recording Minutes
- January 10th, 2020 Recording Minutes
- January 3rd, 2020 Recording Minutes
- December 13th, 2019 Recording Minutes
- December 6th, 2019 Recording Minutes
- November 22nd, 2019 Recording Minutes
- November 15th, 2019 Recording Minutes
- November 8th, 2019 Recording Minutes
- October 25th, 2019 Recording Minutes
- October 18th, 2019 Recording Minutes
- October 11th, 2019 Recording Minutes
- October 4th, 2019 Recording Minutes
- September 20th, 2019 Recording Minutes
- September 6th, 2019 Recording Minutes
- August 23rd, 2019 Recording Minutes
- August 16th, 2019 Recording Minutes
- August 9th, 2019 Recording Minutes
- July 26th, 2019 Recording Minutes
- July 19th, 2019 Recording Minutes
- July 12th, 2019 Recording Minutes
- June 21st, 2019 Recording Minutes
- June 14th, 2019 Recording Minutes
- May 31st, 2019 Recording Minutes
- May 24th, 2019 Recording Minutes
- May 17th, 2019 Recording Minutes
- May 10th, 2019 Recording Minutes Modern Design Methodologies for Next-Gen Multi-Chip(let) Packaging Presentation - John Park, Cadence Protocols On Die-to-Die Interfaces Presentation - David Kehlet, Intel
- May 3rd, 2019 Recording Minutes Chipset Design Exchange Presentation - Jawad Nasrullah, zGlue
- April 26th, 2019 Recording Minutes
- April 19th, 2019 Recording Minutes SIP Design Flow Presentation - Jawad Nasrullah, zGlue
- April 12th, 2019 Recording Minutes
- April 5th, 2019 Recording Minutes

Past Events

2020 Design Automation Conference:
Topic Speaker Affiliation Slides Video
ODSA Introduction Bapi Vinnakota OCP Slides Recording
3rd Annual Heterogeneous Integration Meeting @SEMI World Headquarters: February 20th, 2020:
Topic Speaker Affiliation Slides
ODSA Introduction Bapi Vinnakota OCP Slides
ODSA Workshop @ Facebook: December 18th, 2019:
Topic Speaker Affiliation Slides
ODSA Introduction Bapi Vinnakota OCP Slides
Facebook tech talk 1 - Co-packaged Optics Katharine Schmidkte Facebook Slides
Facebook tech talk 2 - D2D Interface Ron Ho Facebook Slides
IHS Markit survey results + Business workstream update Sam Fuller NXP Slides
Mapping protocols to D2D PHYs (Link Layer, PIPE,DiPort) David Kehlet, Jaideep Dastidar, Sam Fuller, Imran Ahmed Intel, NXP, Xilinx, AnalogX Slides
PoC Discussion JP Balachandran, Joshua Raiff, Jawad Nasrullah, Sam Fuller, Jim Tavacoli, Quinn Jacobson Cisco, Facebook, zGlue, NXP, Lattice, Achronix Slides
Open HBI D2D Interface Workstream Kenneth Ma Xilinx Slides
Cadence D2D Interface Rishi Chugh/Wendy Wu Cadence Design Systems Slides
BoW workgroup status update Ramin Farjadrad Marvell Slides
BoW interface initialization and calibration Prakash Radhakrishnan SiFive
Chiplets test panel Dave Armstrong, Rajamani Sethuram, Liz Jensen, Karen Darbinyan Advantest, Synopsys, nVidia, Cadence Design Systems Armstrong Slides, Jensen Slides, Sethuram Slides, Zorian Slides
CDX workstream updates Jawad Nasrullah zGlue Slides
Multiphysics simulation for chiplets Chris Ortiz ANSYS Slides

ODSA Workshop @ OCP Regional Summit: September 26th-27th, 2019:
Topic Speaker Video Slides
Executive Panel Collaborative Silicon Development Moderator: Bapi Vinnakota (ODSA) Video Slides
ODSA POC Quinn Jacobson (Achronix), Jawad Nasrullah (zGlue), Jayaprakash Balachandran (Cisco) Video Slides
Motivation for ODSA/Fit into OCP Dharmesh Jani (Facebook) Video Slides
The Open Domain Specific Architechure - A Technical Introduction Bapi Vinnakota (ODSA) Video Slides
Bunch of Wires Interface Ramin Farjad (Aquantia), Mark Kuemerle (Global Foundries) Video Slides
The Chiplet Design Exchange Jawad Nasrullah (zGlue) Video Slides
The Impact of Domain Specific Acceleration and Chiplet Technology on the Semiconductor and Electronics Business (Avera Semi) Video [Slides]
ODSA Workshop @ IBM: September 12th, 2019: Video Pictures
Topic Speaker Affiliation Slides
Welcome/Logistics Bapi Vinnakota/Mendy Furmanek Netronome/IBM
Intro to OCP Archna Haylock OCP
IBM Welcome Jeff Welser/Mendy Furmanek IBM
Exploiting Composable Heterogeneity through Open Architectures Josh Friedrich, Jeff Stuecheli IBM Slides
ODSA Technical Intro/Progress Summary Bapi Vinnakota Netronome Slides
PoC Progress and Call for Participation Jayaprakash Balachandran/Jawad Nasrullah/Manish Shah Cisco/zGlue/Achronix Slides
BoW Interface Update Mark Kuemerle Avera Semi Slides
PIPE Interface Update Robert Wang Analog X Slides
Link Layer update David Kehlet Intel Slides
Open Uncore Panel Z. Bandic, S. Fields, D. Jani, M. Kuemerle, mod B. Vinnakota
Monitoring Ashwin Poojary Facebook Slides
Simulation Modeling Animesh Mishra/Robbie Adler Intel Slides
Xilinx and Chiplets Millind Mittal Xilinx Slides
IEEE Heterogeneous Integration Roadmap Bill Chen IEEE Slides
ASE Heterogeneous Packaging Eelco Bergman ASE Slides
Packaging and Test Panel E. Bergman, M. Peng, W. Sauter, M. Hutner, mod S. Fuller IEEE/IBM/Tesla/Avera/ASE Video
ODSA Workshop @ Intel: June 10th, 2019: Pictures Video
Topic Speaker Affiliation Slides
Welcome/Logistics Bapi Vinnakota/Animish Mishra Netronome/Intel Slides
Intel Welcome Ahmad Zaidi Intel
Intel Chiplets and Packaging Ramune Nagisetti and Ravi Mahajan Intel Slides
Virtual Chiplet Platform Animish Mishra/Robbie Adler Intel Slides
ODSA Technical Intro Bapi Vinnakota Netronome Slides
PHY Review/BoM Interface Update Ramin Farjadrad/Mark Kuemerle Aquantia/Avera Semi Slides
AIB/Link Layer/Call to Action David Kehlet Intel Slides
Advanced Packaging for Chiplets Surya Bhattacharya IME Singapore Slides
Chiplet Design Experience Panel Intel/AMD/Cisco/eSilicon/Xilinx Slides
CDX - Chiplet Design Exchange Jawad Nasrullah/Alex zGlue/Ayar Labs Slides
Chiplet Microassembly Printer & Microsprings Eugene Chow Xerox PARC Slides
POC Update JP/Quinn/Manish/Jawad/Mark Cisco/Achronix/Samtec/zGlue Slides
Chiplet Workflow Experience Panel NXP/Avera Semi/Ayar Labs/Facebook/ Granite RIver Labs/Kandou Slides
ODSA Workshop @ Samsung: March 28th, 2019: Pictures
Topic Speaker Affiliation Slides
Welcome/Logistics Bapi Vinnakota/Jim Finnegan Netronome Slides
Welcome/Samsung Overview Craig Orr Samsung Slides
Accelerators Whitney Zhao Facebook Slides
ODSA technical introduction Bapi Vinnakota Netronome Slides
PHY Layer Review Greg Taylor zGlue Slides
BoW: Basic, Fast, Turbo Die-to-Die Open Interface Solutions Mark Kuemerle/Ramin Farjad Avera Semi/Aquantia Slides
Power distribution Ali Husain ON Semiconductor Slides
PIPE Adapter Brian Holden Kandou Slides
Design tools for muti-chip Jawad Nasrullah zGlue Slides
Speedster221 FPGA for POC Quinn Jacobson Achronix Slides
Firefly DirectConnect Options for ODSA Proof of Concept Marc, Sam, Quinn, Bapi   N/A Slides
Design Tools for Chiplet-Based Design Jawad Nasrullah zGlue Slides
Business models Sam Fuller/Jeff McGuire/Jim Finnegan NXP/Kandou/Netronome Slides
Working w/ OCP, PoC JDA, Closing Archna Haylock, Bill Carter OCP Slides
ODSA Sub-Project Launch @ OCP Global Summit: March 14-15th, 2019:
Topic Speaker Video Slides
Open Domain-Specific Architecture (ODSA) Sub-project Launch Bapi Vinnakota (Netronome) Video Slides

ODSA Workshop @ Netronome: January 29th, 2019

- Video
- Slides