Server/OAI

Welcome

Welcome to the Open Accelerator Infrastructure(OAI) subgroup. OAI group is mainly working on define the common infrastructure specification for various accelerator solutions, such as common form factor, universal baseboard etc. The scope of this OAI subgroup is to define below 9 schedules for physical modules include logical aspects such as electrical, mechanical, thermal, management, hardware security, physical serviceability, etc. to produce solutions compatible with existing/traditional operation systems and frameworks to run heterogeneous accelerator applications.

○ Open Accelerator Infrastructure (OAI)
○ OCP Accelerator Module (OAI-OAM)
○ OAI Universal Baseboard (OAI-UBB) 
○ OAI Host Interface (OAI-HIB)
○ OAI Power Distribution (OAI-PDB)
○ OAI Expansion Beyond UBB (OAI-Expansion)
○ OAI Security, Control, and Management (OAI-SCM) 
○ OAI-Tray
○ OAI Chassis (This chapter will address air-cooled and liquid-cooled aspects as well.)

There are 5 workstreams under this group working on above schedules:

○ OAI System workstream
○ Highspeed workstream
○ Power workstream
○ Thermal and Cooling workstream
○ OAMTool workstream

Project Leadership

Sub Project Lead

- Song Kok Hang (Meta)

- Ahmed AbouAlfotouh (AMD)

Current Status

- OAM Spec v1.5 released

- UBB Spec v1.5 released

- OAI workstreams are working on OAM2.0/UBB2.0/EXP1.0 spec

Approved Contributions

OCP Accelerator Module (OAM) Design Specification v1.5

OCP Universal Baseboard (UBB) Design Specification v1.5

HGX Form Factor Specification

Active documents

- OCP Presentation Template - please contact Michael Schill or Archna Haylock for a copy

Type	Description	Version	Submit Date	Contributor	License	Notes
Spec Update	OCP Accelerator Module (OAM) Design Specification v1.5	v1.5	2/23/2022	OCP OAI Workstreams	OWF CLA	Presented in 2/23 Server WG call.
Spec Update	OCP Universal Baseboard (UBB) Design Specification v1.5	v1.5	2/23/2022	OCP OAI Workstreams	OWF CLA	Presented in 2/23 Server WG call.
Spec	HGX Form Factor Specification	r1.0/v0.1	05/05/2022	NVIDIA	OWF CLA
Introduction	OCP Accelerator Module 022719.pptx	n/a	2/27/19	Facebook & MSFT	n/a	Presented in 2/27 Server WG call. Introduction to OAM sub-group under Server Project. Future entries will be in the OAP WIki at: https://www.opencompute.org/wiki/Server/OAM
OAM Spec	OCP Accelerator Module Design Spec Package v0.85	v0.85	3/14/2019	Facebook/Microsoft/Baidu	OWF CLA	Contributed the spec to OCP community on 3/14 during OCP summit.
OAM Spec Update	OCP Accelerator Module Design Spec Package v0.90	v0.90	4/30/2019	Facebook/Microsoft/Baidu	OWF CLA	SerDes Pin map updated and optimized for interconnect link which has X8 or X4 lanes
OAM Spec v1.0	OCP Accelerator Module Design Spec Package v1.0	v1.0	7/31/2019	Facebook/Microsoft/Baidu	OWF CLA	Add 8 port HCM and combined FC/HCM topologies; add scale out options; Change connector 1 port name 6/5/4/R to 4/5/6/7
UBB Spec v0.42	OCP OAI Universal Baseboard Design Specification v0.42	v0.42	1/30/2020	OCP OAI JDA Group	OWF CLA
UBB Spec v1.0	OCP OAI Universal Baseboard Design Specification v1.0	v1.0	6/30/2020	OCP OAI JDA Group	OWF CLA
OAM Spec v1.1	OCP Accelerator Module Design Spec Package v1.1	v1.1	7/22/2020	OCP OAI JDA Group	OWF CLA	Add management and security requirements for OAM

Get Involved

- Mailing List

- OCP Calendar

Meeting Schedule

For public meetings:

- Once a month, 2nd Wednesday of each Month, 8-9am Pacific Time Zone.

- Meeting agenda to be sent to subscribe mailing list one day before the meeting.

Each workstream has its own bi-weekly meeting. Only members in the workstream will receive the meeting invitation:

- Related info to be sent to each workstream mailing list.

Slides/Recordings from Past Calls

Monthly Call Date	Slides/Recordings Link	Notes
5/8/2019	OAI_Subgroup_Call_05082019.pdf	n/a
6/12/2019	OAI_Subgroup_Call_06122019.pdf	n/a
7/11/2019	OAI_Subgroup_Call_07112019.pdf	n/a
7/24/2019	OAI_Subgroup_monthly_update_07242019.pdf	n/a
8/14/2019	OAI_Subgroup_call_08142019.pdf	n/a
10/09/2019	OAI_Group_Monthly_Update(OCP_Regional_Summit)_10092019.pdf	n/a
11/13/2019	OAI_Subgroup_Call_11132019.pdf	n/a
10/14/2020	Recording	n/a