Difference between revisions of "Time Appliances Project"

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==Project Leadership==
 
==Project Leadership==
Leads:
+
:- Lead: [mailto:ahmad.byagowi@ocproject.net Ahmad Byagowi, Ph.D.] (OCP TAP / META)
:- [mailto:ahmad.byagowi@ocproject.net Ahmad Byagowi] (Facebook)
+
:- Incubation Committee: [mailto:elad.wind@ocproject.net Elad Wind] (OCP / NVIDIA)
:- [mailto:elad@nvidia.com Elad Wind] (NVIDIA)
 
Interim IC Rep:
 
:- [mailto:rajeev@opencompute.org Rajeev Sharma] (OCP)
 
  
=== Workstreams ===
+
==Workstreams==
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
!
 
!
! Project !! Objective !! POC !! Meeting Schedule
+
! Project !! Objective !! Lead !! Mailing List !! Status
 
|-  
 
|-  
| #1
+
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server #1]
| Open Source Grandmaster
+
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server Open Time Server]
| Development of an open source grandmaster for DC and Edge systems
+
| Development of an open time server for DC and Edge systems
 
| [mailto:leoleovich@fb.com Oleg Obleukhov] & <br> [mailto:dotanl@nvidia.com Dotan Levi]
 
| [mailto:leoleovich@fb.com Oleg Obleukhov] & <br> [mailto:dotanl@nvidia.com Dotan Levi]
| rowspan="4" | discussed during project calls
+
|
 +
| [https://www.opencompute.org/contributions Submitted]
 
|-
 
|-
| #2
+
| [https://www.opencompute.org/wiki/TAP_PTP_Profile #2]
| Data Center PTP Profile   
+
| [https://www.opencompute.org/wiki/TAP_PTP_Profile Data Center PTP Profile]  
 
| Development of a PTP Profile tailored for data center applications
 
| Development of a PTP Profile tailored for data center applications
 
| [mailto:michelouellette@fb.com Michel Ouellette]
 
| [mailto:michelouellette@fb.com Michel Ouellette]
 +
|
 +
| [https://www.opencompute.org/contributions Submitted]
 
|-
 
|-
| #3
+
| [https://www.opencompute.org/wiki/TAP_Precision_Time_APIs #3]
| Precision Time API
+
| [https://www.opencompute.org/wiki/TAP_Precision_Time_APIs Precision Time APIs]
 
| Time APIs to disseminate the time error (error bound) and bring accurate time to the user space
 
| Time APIs to disseminate the time error (error bound) and bring accurate time to the user space
 
| [mailto:gemicha@gmail.com Georgi Chalakov]  
 
| [mailto:gemicha@gmail.com Georgi Chalakov]  
 +
| [https://ocp-all.groups.io/g/OCP-TAP-APIs OCP-TAP-APIs]
 +
| Work in progress
 
|-
 
|-
| #4
+
| [https://www.opencompute.org/wiki/TAP_Oscillators #4]
| Oscillators
+
| [https://www.opencompute.org/wiki/TAP_Oscillators Oscillators]
| Classification and measuring of oscillators
+
| Classification and measuring of oscillators  
 
| [mailto:ggiust@sitime.com Gary Giust]  
 
| [mailto:ggiust@sitime.com Gary Giust]  
 +
|
 +
| [https://www.opencompute.org/contributions Submitted]
 +
|-
 +
| [https://www.opencompute.org/wiki/TAP_PTP_Servos #5]
 +
| [https://www.opencompute.org/wiki/TAP_PTP_Servos PTP Servos]
 +
| Design and Implement Advanced PTP Servos
 +
| [mailto:alon.regev@keysight.com Alon Regev]
 +
|
 +
| Getting Started
 +
|-
 +
| [https://www.opencompute.org/wiki/TAP_Instrumentation #6]
 +
| [https://www.opencompute.org/wiki/TAP_Instrumentation Instrumentation and Measurement]
 +
| Open source instrumentation and measurement/testing tools for PTP
 +
| [mailto:anand.ram@calnexsol.com Anand Ram] & <br> [mailto:julianstj@fb.com Julian St. James]
 +
|
 +
| Work in progress
 
|-
 
|-
|  
+
| '''#7'''
| Overall
+
| Time Sync Reliability
| Project meeting coordinator
+
| Fault-tolerance and UTC-traceability
| [mailto:kelvinchukwu@fb.com Kelvin Chukwu]
+
| [mailto:kumargautam@google.com Gautam Kumar] & <br> [mailto:yuliangli@google.com Yuliang Li]
| please send all inquiries to Kelvin
+
|
 +
| Getting Started
 
|}
 
|}
  
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==Documents==
 
==Documents==
 
:- [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/files/c6eee7bea1d297fe82bd18a7f38dfb1806ec1806.pdf Charter]
 
:- [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/files/c6eee7bea1d297fe82bd18a7f38dfb1806ec1806.pdf Charter]
:- OCP Presentation Template - please contact [mailto:michael@opencompute.org Michael Schill] or [mailto:archna@opencompute.org Archna Haylock] for a copy
+
:- [https://github.com/opencomputeproject/Time-Appliance-Project TAP GitHub]
 +
:- [http://linkedin.com/company/ocp-tap TAP LinkedIn]
 +
:- [https://www.facebook.com/ocptap TAP Facebook]
 +
:- [https://drive.google.com/drive/folders/1EDE9Pj1eZj2sF7fUGOnVmwGTf4U6yonr?usp=sharing Google Drive Document Repository]
 +
 
 +
 
  
Release Candidates (RC) Docs
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
! Name !! Format !! Version !! Date  
+
! Worstream !! Name !! Format !! Version !! Date  
 +
|-
 +
|  rowspan="3" style="text-align:center;"  |'''#1'''
 +
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server Open Time Server]
 +
| Reference Architecture
 +
| v1
 +
| July 28, 2021
 +
|-
 +
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card Time Card]
 +
| Spec and design package
 +
| v1
 +
| July 28, 2021
 
|-  
 
|-  
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card/DOC Open Source Grandmaster]
+
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Software TAP Software]
| MD
+
| Software
| v0.2
+
|  
| March 31, 2021
+
| July 28, 2021
 
|-
 
|-
| [https://drive.google.com/file/d/1VKHN8jHgJ9WYLu4lTsgCzvG37SiaxQja/view?usp=sharing Data Center PTP Profile]
+
| style="text-align:center;" | '''#2'''
| PDF
+
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/DC-PTP-Profile Data Center PTP Profile]
| v0.3
+
| Spec
| April 7, 2021
+
| v1
 +
| August 31, 2021
 
|-
 
|-
 
|}
 
|}
 
==TAP GitHub==
 
:- [https://github.com/opencomputeproject/Time-Appliance-Project Github Repo]
 
 
==TAP Google Drive==
 
:- [https://drive.google.com/drive/folders/1EDE9Pj1eZj2sF7fUGOnVmwGTf4U6yonr?usp=sharing Google Drive Document Repository]
 
  
 
==Regular Project Calls==
 
==Regular Project Calls==
 
:- Wednesdays at 11am PST, starting on July 15th, 2020. Repeats every 2 weeks following that
 
:- Wednesdays at 11am PST, starting on July 15th, 2020. Repeats every 2 weeks following that
:- Please contact [mailto:kelvinchukwu@fb.com Kelvin Chukwu] to propose any agenda items
 
  
 
Join the meeting from your computer, tablet or smartphone:  
 
Join the meeting from your computer, tablet or smartphone:  
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  Access Code:                565-185-493
 
  Access Code:                565-185-493
  
==Recordings from Past Calls==
+
===Upcoming Calls===
{| class="wikitable"
+
{| class="wikitable sortable"
 +
|-
 +
!
 +
! Date !! Topics !! Speakers
 +
 
 +
|-
 +
| #53
 +
| <font color="green">August-10, 2022</font>
 +
| <font color="green">Graham: Synchronizing Clocks by Leveraging Local Clock Properties</font>
 +
| <font color="green">Ali Najafi</font>
 +
|-
 +
 
 +
|-
 +
| #52
 +
| <font color="green">July-27, 2022</font>
 +
| <font color="green">T.B.D.</font>
 +
| <font color="green">Manoj Sastry</font>
 +
|-
 +
 
 +
|-
 +
| #51
 +
| <font color="green">July-13, 2022</font>
 +
| <font color="green">Next Generation PTP Aware Switches</font>
 +
| <font color="green">Barak Gafni</font>
 +
|-
 +
 
 +
|-
 +
| #50
 +
| <font color="green">June-29, 2022</font>
 +
| <font color="green">Signal Intergirity Considerations for High Speed Clocking</font>
 +
| <font color="green">Srinivas Venkatraman</font>
 +
|-
 +
 
 +
|-
 +
| #49
 +
| <font color="green">June-15, 2022</font>
 +
| <font color="green">T.B.D.</font>
 +
| <font color="green">Dhiman Chowdhury</font>
 +
|-
 +
 
 +
|-
 +
| #48
 +
| <font color="green">June-1, 2022</font>
 +
| <font color="green">Advanced TimeCard and SyncModule for datacenter synchronization</font>
 +
| <font color="green">Nir Laufer</font>
 +
|-
 +
 
 +
 
 +
|}
 +
 
 +
===Recordings from Past Calls===
 +
{| class="wikitable sortable"  
 
|-
 
|-
 
!
 
!
 
! Date !! Topics !! Speakers !! Slides  
 
! Date !! Topics !! Speakers !! Slides  
 +
|
 +
 +
 +
|-
 +
| #47
 +
| May-18, 2022
 +
| [https://www.youtube.com/watch?v=KEyEbqnDNuY GNSS Power over Fiber System]
 +
| Larry Conway
 +
| [https://drive.google.com/file/d/1xnctMrsKDJn7udxB-bincLFfz44gPglC/view?usp=sharing Slides]
 +
 +
|-
 +
| #46
 +
| May-4, 2022
 +
| [https://www.youtube.com/watch?v=EWiCwTaiM1A Optical Timekeeping Efforts at NIST]
 +
| Jeff Sherman, Ph.D.
 +
| [https://drive.google.com/file/d/1X1URxxz4JZTdmAp4eiglpp07_03ygUwK/view?usp=sharing Slides]
 +
 +
|-
 +
| #45
 +
| Apr-20, 2022
 +
| [https://www.youtube.com/watch?v=bBvfFCqzEC4 Precision Time Applications]
 +
| Dan Biederman
 +
| [https://drive.google.com/file/d/10t-jfT8sWCByCnVMNxT8vmRlSZS0a2di/view?usp=sharing Slides]
 +
 +
|-
 +
| #44
 +
| Apr-06, 2022
 +
| [https://www.youtube.com/watch?v=heGeqkSzALs Digitized Clocking Technology, Achieving Time Sync Inside and Across a Distributed a Systems]
 +
| Petre Minciunescu, Ph.D.
 +
| [https://drive.google.com/file/d/1ikp-SQ2fzD19miCGQFvTa_0rtMmryK-U/view?usp=sharing Slides]
 +
 +
|-
 +
| #43
 +
| Mar-23, 2022
 +
| [https://www.youtube.com/watch?v=93NQKXBIRKw Opening the FPGA code of the Time Card]
 +
| Sven Meier & Thomas Schaub
 +
| [https://drive.google.com/file/d/1vHgtRRjC_1AaNBZe0kBP1IawKhZ3fKR6/view?usp=sharing Slides]
 +
 +
|-
 +
| #42
 +
| Mar-09, 2022
 +
| [https://www.youtube.com/watch?v=HvD3sXQTxVU Measuring and Monitoring Options for Time Sync Infrastructures]
 +
| Heiko Gerstung
 +
| [https://docs.google.com/presentation/d/1UT73AFPgdOfeFD8XAkt05CUIEngKynHO/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
 +
 +
|-
 +
| #41
 +
| Feb-23, 2022
 +
| [https://www.youtube.com/watch?v=PwowsxsOyQ4 A Continuous UTC; May We Get Rid of Leap Seconds?]
 +
| Patrizia Tavella, Ph.D.
 +
| [https://drive.google.com/file/d/1bXHs4EI1J9BRzkU4Z0pg0KCSwmfcOPT3/view?usp=sharing Slides]
 +
 +
|-
 +
| #40
 +
| Feb-9, 2022
 +
| [https://www.youtube.com/watch?v=CAyN3RtO51A Getting Precision Time Synchronization to End Users]
 +
| Julian St. James
 +
| [https://drive.google.com/file/d/1ncZ-k72bzSsQoei4PPWyN0rWdt_0kOib/view?usp=sharing Slides]
 +
 +
|-
 +
| #39
 +
| Jan-26, 2022
 +
| [https://www.youtube.com/watch?v=aAkKceA4UIk Using LEO Satellites for Time Synchronization]
 +
| Tyler Reid, Ph.D.
 +
| [https://drive.google.com/file/d/1HhNBkhQsh2ucdlxfKtlnPk7dhp4yNlpX/view?usp=sharing Slides]
 +
|-
 +
| #38
 +
| Jan-12, 2022
 +
| [https://www.youtube.com/watch?v=XiuAevnsWhQ Antenna Challenges for GNSS Receivers]
 +
| Daniel Suster
 +
| [https://drive.google.com/file/d/1PUiHj8_dsOOd6L3VnraldWSkbbajCXAF/view?usp=sharing Slides]
 +
|-
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| #37
 +
| Dec-15, 2021
 +
| [https://www.youtube.com/watch?v=JgHD1CU4Ycs PCIe PTM: Timing in the Last Inch]
 +
| Christopher Hall
 +
| [https://drive.google.com/file/d/1OKAOjRzZHlaNoHE7USXpOyIBU0_1EytU/view?usp=sharing Slides]
 +
|-
 +
| #36
 +
| Dec-1, 2021
 +
| [https://www.youtube.com/watch?v=oPTIp3qE2Gs Application of Physical Layer Synchronization/Syntonization in a Data Center Environment]
 +
| Med Belhadj, Ph.D.
 +
| [https://drive.google.com/file/d/1fle9tBnJfYL-Sg_PdHkfntxOSgLoos8n/view?usp=sharing Slides]
 +
 +
|-
 +
| #35
 +
| Nov-17, 2021
 +
| [https://www.youtube.com/watch?v=7Ot420LJUDw Oscillator Workstream Update]
 +
| Gary Guist, Ph.D.
 +
| [https://drive.google.com/file/d/1k9ZTTYAqdyviUKSJd_JmM8CH3LKBPf5w/view?usp=sharing Slides]
 +
|-
 +
|#34
 +
| Nov-3, 2021
 +
| [https://www.youtube.com/watch?v=coa6OkTbD5M Time Service for the Virtual Entity]
 +
| Dotan Levi
 +
|
  
 +
|-
 +
|#33
 +
| Oct-20, 2021
 +
| [https://www.youtube.com/watch?v=T1dYGiCZjc8 Squared: A P2P Overlay Network for Setting up a Scalable PTP clock Synchronization Mesh]
 +
| Lasse Johnsen
 +
| [https://drive.google.com/file/d/1oWJqS68MjEFX-34LW7aHZ_QlOnBL-qnm/view?usp=sharing Slides]
 +
|-
 +
 +
| #32
 +
| Oct-6, 2021
 +
| [https://www.youtube.com/watch?v=5jbUJeHaRBU Validating PTP follower clock accuracy]
 +
| Alon Regev
 +
| [https://drive.google.com/file/d/1BLqaCoF8tnZtwA-jlMmfs1_xNNCR8Nd8/view?usp=sharing Slides]
 +
 +
|-
 +
| #31
 +
| Sep-22, 2021
 +
| [https://www.youtube.com/watch?v=nwbPtG6f7eI Transparent Clock and its Applications]
 +
| Amit Oren
 +
| [https://drive.google.com/file/d/1gB8uSXkX4OV7yNYUdg8JLFqNeYwYG3Et/view?usp=sharing Slides]
 +
 +
|-
 +
| #30
 +
| Sep-8, 2021
 +
| [https://www.youtube.com/watch?v=vj2nM9N7F9g Miniaturized Rubidium Oscillator With The Lowest SWAP Based on Double Resonance]
 +
| Christian S. Ph.D., Stavros M. Ph.D., Jean-Arnold C
 +
| [https://drive.google.com/file/d/1Uap6vcQyrY-X9sWkjE3IZCxdaWHTnWET/view?usp=sharing Slides]
 +
 +
|-
 +
| #29
 +
| Aug-25, 2021
 +
| [https://www.youtube.com/watch?v=MUhEbmjAweA Fearless Global Transactions using Clock Synchronization in CockroachDB]
 +
| Nathan VanBenschoten
 +
| [https://drive.google.com/file/d/1otcpgZa4eXwfkcTTRgiOT_SqrkogOeZh/view?usp=sharing Slides]
 +
 +
|-
 +
| #28
 +
| Aug-11, 2021
 +
| [https://www.youtube.com/watch?v=4MAMxTgp-gg White Rabbit High Accuracy Timing]
 +
| Francisco Girela Lopez, Ph.D.
 +
| [https://drive.google.com/file/d/1lj6lauC6XSzPOqteTLr3M6aSRkKgufEO/view?usp=sharing Slides]
 +
 +
|-
 +
| #27
 +
| Jul-28, 2021
 +
| [https://www.youtube.com/watch?v=AUU0A9gVkvw Sundial: Fault-tolerant Clock Synchronization for Datacenters]
 +
| Gautam Kumar & Yuliang Li, Ph.D.
 +
| [https://drive.google.com/file/d/11caMgoSODkOvsl2gNF-dGna3dNJXdrCX/view?usp=sharing Slides]
 +
 +
|-
 +
| #26
 +
| Jul-14, 2021
 +
| [https://www.youtube.com/watch?v=NlZnbndnL_A Holdover Challenges in NIC Based Boundary Clocks]
 +
| Eyal Cohen
 +
| [https://docs.google.com/presentation/d/1AtLNeFJ-j1lYHvAYR4TOdZ48U9hh34WX/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
 +
 +
|-
 +
| #25
 +
| Jun-30, 2021
 +
| [https://www.youtube.com/watch?v=xu1EtozIakY GNSS Anti-Jamming and Spoof Mitigation]
 +
| Benoit Krummenacker
 +
| [https://drive.google.com/file/d/1PHNCSBq2IndOxIK29MsHthadiUbP9NcE/view?usp=sharing Slides]
 +
 +
|-
 +
| #24
 +
| Jun-16, 2021
 +
| [https://www.youtube.com/watch?v=E-x939MMV3A Introduction to IEEE1588-2019]
 +
| Doug Arnold, Ph.D.
 +
| [https://drive.google.com/file/d/1tBimVperDldY4cIMY0wbjvVZYbvXCLjn/view?usp=sharing Slides]
 +
 +
|-
 +
| #23
 +
| Jun-2, 2021
 +
| Introduction to MAC and CSACs
 +
| Robert Lutwak, Ph.D.
 +
| [https://drive.google.com/file/d/1VYnkZlWSSs66f9x9BA-5Nza-myv3w3Qz/view?usp=sharing Slides]
 +
 +
|-
 +
| #22
 +
| May-19, 2021
 +
| [https://www.youtube.com/watch?v=G_vRHOExcTA Open Synchronization implementations on Linux/k8s Clusters]
 +
| Timo Jokiaho & Pasi Vaananen
 +
| [https://drive.google.com/file/d/1qU87Fys2wDBNK_3kyylwOCW1J752IPzi/view?usp=sharing Slides]
 +
|-
 +
| #21
 +
| May-5, 2021
 +
| [https://www.youtube.com/watch?v=pqTsCFM6lCo White Rabbit: An Accurate Time and Frequency Transfer over Ethernet]
 +
| Maciej Lipinski, Ph.D.
 +
| [https://drive.google.com/file/d/14x5HVGhhRivVNs1JYO1kPvsthuuP-Kce/view?usp=sharing Slides]
 
|-
 
|-
 
| #20
 
| #20
 
| Apr-21, 2021
 
| Apr-21, 2021
| [ Time Scale Algorithms - Part 2]  
+
| [https://www.youtube.com/watch?v=gizVwrBegYo Time Scale Ensembles in Uncertain Environments]  
 
| rowspan="2" | Marc A. Weiss, Ph.D.
 
| rowspan="2" | Marc A. Weiss, Ph.D.
| [ Slides]
+
| [https://drive.google.com/file/d/1ERLlsJz70t8_GDSlVnDEOCxqWWYO7jYd/view?usp=sharing Slides]
 
|-
 
|-
 
| #19
 
| #19
 
| Apr-7, 2021
 
| Apr-7, 2021
| [https://www.youtube.com/watch?v=rSsSAlP2eIA Clock and Oscillator Statistics and Characterization Techniques - Part 1]  
+
| [https://www.youtube.com/watch?v=rSsSAlP2eIA Clock and Oscillator Statistics and Characterization Techniques]  
 
| [https://drive.google.com/file/d/1V8zDETnZX_PjxGYog8bKgokKqnUjR95X/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/1V8zDETnZX_PjxGYog8bKgokKqnUjR95X/view?usp=sharing Slides]
 
|-
 
|-
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| Mar-24, 2021
 
| Mar-24, 2021
 
| [https://www.youtube.com/watch?v=5zMdYlPipXU Introduction to Project Corundum for Time services]  
 
| [https://www.youtube.com/watch?v=5zMdYlPipXU Introduction to Project Corundum for Time services]  
| Alex Forencich
+
| Alex Forencich, Ph.D.
 
| [https://drive.google.com/file/d/1GsFh9jlnloI6f7JOSQjV66LTi2o07BXD/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/1GsFh9jlnloI6f7JOSQjV66LTi2o07BXD/view?usp=sharing Slides]
 
|-
 
|-
Line 131: Line 400:
 
| Mar-10, 2021
 
| Mar-10, 2021
 
| [https://www.youtube.com/watch?v=cYNAyCC53sc Oscillators Classification, <B>Workstream #4</B> goals and kickoff]
 
| [https://www.youtube.com/watch?v=cYNAyCC53sc Oscillators Classification, <B>Workstream #4</B> goals and kickoff]
|  
+
| Gary Giust, Ph.D.
 
| [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view?usp=sharing Slides]
 
|-
 
|-
Line 149: Line 418:
 
| Jan-27, 2021
 
| Jan-27, 2021
 
| [https://www.youtube.com/watch?v=-uNaQENycMA Huygens and its Applications]  
 
| [https://www.youtube.com/watch?v=-uNaQENycMA Huygens and its Applications]  
| Professor Balaji Prabhakar  
+
| Balaji Prabhakar, Ph.D.
 
|  
 
|  
 
|-
 
|-
Line 155: Line 424:
 
| Jan-13, 2021
 
| Jan-13, 2021
 
| [https://www.youtube.com/watch?v=N9KoaOonvzM TAP 2020 Recap, 2021 Plans]
 
| [https://www.youtube.com/watch?v=N9KoaOonvzM TAP 2020 Recap, 2021 Plans]
|  
+
| Ahmad Byagowi, Ph.D.
 
| [https://drive.google.com/file/d/1H16HOlaNx4C72A3odW-Lc4_F-yrDAi_M/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/1H16HOlaNx4C72A3odW-Lc4_F-yrDAi_M/view?usp=sharing Slides]
 
|-  
 
|-  
Line 166: Line 435:
 
| Dec-16, 2020
 
| Dec-16, 2020
 
| [https://www.youtube.com/watch?v=Niu5pQ6QZ88 Chip Scaled Atomic Clocks]  
 
| [https://www.youtube.com/watch?v=Niu5pQ6QZ88 Chip Scaled Atomic Clocks]  
| Dr. John Kitching
+
| John Kitching, Ph.D.
 
| [https://drive.google.com/file/d/1wbp7ZlPDmCtxvjqx0dyiY8MA9jOz75bu/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/1wbp7ZlPDmCtxvjqx0dyiY8MA9jOz75bu/view?usp=sharing Slides]
  
Line 173: Line 442:
 
| Dec-2, 2020
 
| Dec-2, 2020
 
| [https://www.youtube.com/watch?v=rVZbEKOE6jo Data Center PTP Profile, <B>Workstream #2</B> proposal]
 
| [https://www.youtube.com/watch?v=rVZbEKOE6jo Data Center PTP Profile, <B>Workstream #2</B> proposal]
|  
+
| Michel Ouellette
 
|
 
|
  
Line 182: Line 451:
 
| Kevin Stanton, Ph.D.  
 
| Kevin Stanton, Ph.D.  
 
| [https://drive.google.com/file/d/12J7785mAmjNo9TsI3jZ11-QuRsDDDIIO/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/12J7785mAmjNo9TsI3jZ11-QuRsDDDIIO/view?usp=sharing Slides]
 
  
 
|-
 
|-
| #9
+
| #09
 
| Nov-4, 2020
 
| Nov-4, 2020
| [https://www.youtube.com/watch?v=rUDHKJCI3n4 Time Sync in TSNs]
+
| [https://www.youtube.com/watch?v=rUDHKJCI3n4 Time Sync in TSNs] (History of TSN, IEEE 802.1AS Overview)
. History of TSN <BR>
+
| Hesham ElBakoury
. IEEE 802.1AS Overview
 
|  
 
 
| [https://drive.google.com/file/d/1y1ds3bGuJcNRlHgVnmjQGeXhCfZ5sy4q/view?usp=sharing Slides]
 
| [https://drive.google.com/file/d/1y1ds3bGuJcNRlHgVnmjQGeXhCfZ5sy4q/view?usp=sharing Slides]
 +
|
  
 
|-
 
|-
| #8
+
| #08
 
| Oct-21, 2020
 
| Oct-21, 2020
 
| [https://www.youtube.com/watch?v=cUPv1Gdvv9A Starter's guide to ptp4l]  
 
| [https://www.youtube.com/watch?v=cUPv1Gdvv9A Starter's guide to ptp4l]  
Line 201: Line 468:
  
 
|-
 
|-
| #7
+
| #07
 
| Oct-7, 2020
 
| Oct-7, 2020
 
| [https://www.youtube.com/watch?v=FIuazsKx7VY&feature=youtu.be Timing card implementation]  
 
| [https://www.youtube.com/watch?v=FIuazsKx7VY&feature=youtu.be Timing card implementation]  
|  
+
| Ahmad Byagowi, Ph.D.
 
|
 
|
  
 
|-
 
|-
| #6
+
| #06
 
| Sep-23, 2020
 
| Sep-23, 2020
 
| [https://www.youtube.com/watch?v=Xzh3JUzbz4I Practical Use Cases of Synchronized Clocks]
 
| [https://www.youtube.com/watch?v=Xzh3JUzbz4I Practical Use Cases of Synchronized Clocks]
Line 215: Line 482:
  
 
|-
 
|-
| #5
+
| #05
 
| Sep-9, 2020
 
| Sep-9, 2020
 
| [https://www.youtube.com/watch?v=5XJXEztSDl4 Data Center PTP Profile, <B>Workstream #2</B> goals and draft spec]  
 
| [https://www.youtube.com/watch?v=5XJXEztSDl4 Data Center PTP Profile, <B>Workstream #2</B> goals and draft spec]  
|  
+
| Michel Ouellette
 
|
 
|
  
 
|-
 
|-
| #4
+
| #04
 
| Aug-26, 2020
 
| Aug-26, 2020
| [https://www.youtube.com/watch?v=vc1IUOw0Q4k Open Grandmaster, <B>Workstream #1</B> goals and draft spec]
+
| [https://www.youtube.com/watch?v=vc1IUOw0Q4k Open Grandmaster (Open Time Server), <B>Workstream #1</B> goals and draft spec]
|
+
| Oleg Obleukhov
 
|  
 
|  
  
 
|-
 
|-
| #3
+
| #03
 
| Aug-12, 2020
 
| Aug-12, 2020
| [https://www.youtube.com/watch?v=INEbH7Q_d1c A. TAP Vision <BR> B. Impact of Precision Oscillator Noise on PTP Time Error ]
+
| [https://www.youtube.com/watch?v=INEbH7Q_d1c TAP Vision as well as the impact of precision oscillator noise on PTP time error]
|
+
| Dotan Levi
 
|  
 
|  
  
 
|-
 
|-
| #2
+
| #02
 
| Jul-29, 2020
 
| Jul-29, 2020
 
| [https://www.youtube.com/watch?v=t7eo3Aya35c Detailed Project Proposal and Discussion]
 
| [https://www.youtube.com/watch?v=t7eo3Aya35c Detailed Project Proposal and Discussion]
|
+
| Michel Ouellette
 
|  
 
|  
  
 
|-
 
|-
| #1
+
| #01
 
| Jul-15, 2020
 
| Jul-15, 2020
 
| [https://www.youtube.com/watch?v=WmMM0b38mIM Proposal to launch OCP-TAP Incubation Project]
 
| [https://www.youtube.com/watch?v=WmMM0b38mIM Proposal to launch OCP-TAP Incubation Project]
|
+
| Ahmad Byagowi, Ph.D.
 
| [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing Slides]   
 
| [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing Slides]   
  
 
|}
 
|}
  
==Presentations & Videos==
+
== Presentations & Videos ==
:- [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing OCP TAP - Vision]
+
:- [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing '''TAP Vision''' | Slides]
:- [https://drive.google.com/file/d/1LC5Ld0r3U7us_jvmKeD_ZpBJaA7Kk0O4/view?usp=sharing TAP Presentation]
+
:- [https://drive.google.com/file/d/1LC5Ld0r3U7us_jvmKeD_ZpBJaA7Kk0O4/view?usp=sharing '''TAP Presentation''' | Slides]
:- [https://drive.google.com/file/d/16EAy8Tl7SqosLlGSg5WKEA4nexWjUlAg/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 1]
+
:- [https://www.opencompute.org/wiki/TAP_2021_OCP_Global_Summit#TAP_Track_Sessions 2021 '''OCP Global Summit | TAP Track''']
:- [https://drive.google.com/file/d/1Kc5JdHdd2nchxbXNGm2XyBj-pXUkHk9N/view?usp=sharing Impact of Oscillator Noise on PTP Time Error Part 2]
+
:- [https://drive.google.com/file/d/1RRjmGcaerDcjSKHzjfs9ob0XoldP03uQ/view?usp=sharing '''GTC 2021: Time Synchronization in Distributed Data Centers''' | Video] | [https://drive.google.com/file/d/1H8Q4S7darJyz_LTtQq_MykvzfhD_w_6I/view?usp=sharing Slides]
:- [https://drive.google.com/file/d/1TbPzJH1iiTTkr1Uy9B60Vo2h-v7l4S90/view?usp=sharing ELPROMA TAP Remarks Oct 7 2020]
+
:- [https://www.opencompute.org/wiki/TAP_2020_OCP_Tech_Week '''2020 OCP Tech Week''' | TAP Track]
 +
:- Impact of Oscillator Noise on PTP Time Error by SiTime | [https://drive.google.com/file/d/16EAy8Tl7SqosLlGSg5WKEA4nexWjUlAg/view?usp=sharing Slides Part 1] [https://drive.google.com/file/d/1Kc5JdHdd2nchxbXNGm2XyBj-pXUkHk9N/view?usp=sharing Slides Part 2]
  
==Recordings from Workstream Calls==
+
=== IC Presentations ===
{| class="wikitable"
+
:- September 2nd 2021 IC Presentation [https://www.youtube.com/watch?v=JJQnNsDGEQU (Contribution of TAP DC Profile)]
|-
+
:- August 5th, 2021 IC Presentation [https://www.youtube.com/watch?v=iINUNj9gIZw (Contribution of TAP Time Card and Open Time Server)]
! Workstream !! Date !! Meeting !! Slides
 
  
|-
+
== TAP Media References ==
| rowspan="4" | #4 Oscillators
+
:- [https://www.youtube.com/watch?v=JK3eTGkX6qY&t=286s "Why is this PCIe Card RADIOACTIVE?"] video from [https://www.youtube.com/channel/UCXuqSBlHAE6Xw-yeJA0Tunw Linus Tech Tips Youtube Channel] highlighting the TAP Time Card
| March 18th, 2021
+
:- [https://www.youtube.com/watch?v=tU0xC1ynaT8 "The most accurate Raspberry Pi clock IN THE WORLD! Can it do PTP?"] video from [https://www.youtube.com/channel/UCR-DXc1voovS8nhAvccRZhg Jeff Geerling Youtube Channel] highlighting the TAP Time Card
| [https://drive.google.com/file/d/12WmaGkLF1IUjLaAhXSzVp33pzmlYMA4J/view?usp=sharing Recording]
+
:- [https://www.youtube.com/watch?v=YKApDtJjXU4 "Put An Atomic Clock in Your PC - Open Source Time Card"] video from [https://www.youtube.com/channel/UCRjSO-juFtngAeJGJRMdIZw Gary Explains Youtube Channel] explains the TAP Time Card
| [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view Slides]
+
:- [https://www.cnet.com/tech/computing/facebook-shares-its-time-card-atomic-clock-tech-to-speed-internet-services/ "Facebook shares its Time Card atomic clock tech to speed internet services"] article from C|Net
+
:- [https://developer.nvidia.com/blog/nvidia-supercharges-precision-timing-for-facebooks-next-generation-time-keeping/ "Supercharges Precision Timing for Facebook’s Next-Generation Time Keeping"] developer blog from NVIDIA
|-
 
| March 31st, 2021
 
| [https://drive.google.com/file/d/1P1bME9Z8jQsPGPF1msC3a825Ou-4mjol/view?usp=sharing Recording]
 
|
 
 
|-
 
| April 7th, 2021
 
| [https://drive.google.com/file/d/1HyR0wECmPYLHITq3Af0xYlaOWdIPlpm9/view?usp=sharing Recording]
 
|  
 
 
|-
 
| April 14th, 2021
 
| [https://drive.google.com/file/d/1lkECCGt6WCi9D1eYiFOizGqyPRPBhLnI/view?usp=sharing Recording]
 
|
 
 
 
|}
 
  
== References & External Links ==  
+
===References & External Links===  
:- [https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf Spanner, TrueTime & The CAP Theorem] by Eric Brewer, Google
+
:- [https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf '''Spanner''', TrueTime & The CAP Theorem] by Eric Brewer, Google
 +
:- [https://www.usenix.org/conference/osdi20/presentation/li-yuliang '''Sundial''': Fault-tolerant Clock Synchronization for Datacenters] by Google Inc. and Harvard University
 
:- [http://www.dainf.cefetpr.br/~tacla/SDII/PracticalUseOfClocks.pdf Practical Uses of Synchronized Clocks in Distributed Systems] by Barbara Liskov  
 
:- [http://www.dainf.cefetpr.br/~tacla/SDII/PracticalUseOfClocks.pdf Practical Uses of Synchronized Clocks in Distributed Systems] by Barbara Liskov  
:- [https://ocp-all.groups.io/g/OCP-TAP/attachment/2/0/nsdi18-geng.pdf Stanford Paper] for reference only
+
:- [https://ocp-all.groups.io/g/OCP-TAP/attachment/2/0/nsdi18-geng.pdf Stanford Paper]  
:- [https://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf Spanner Paper] for reference only
+
:- [https://arxiv.org/pdf/2002.04269.pdf On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks]  
:- [https://arxiv.org/pdf/2002.04269.pdf On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks] for reference only, raised by Elad
+
:- [https://drive.google.com/file/d/11MFIk9WWJ-cmjj8uWifKQnefEKvdchZE/view?usp=sharing Accurate Network Clock Synchronization at Scale]  
:- [https://drive.google.com/file/d/11MFIk9WWJ-cmjj8uWifKQnefEKvdchZE/view?usp=sharing Accurate Network Clock Synchronization at Scale] for reference only, raised by Hesham
+
:- [https://drive.google.com/file/d/1dpuhsC3aPNpJHD-iw0xq4K0cDjEMGG4q/view?usp=sharing Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization]  
:- [https://drive.google.com/file/d/1dpuhsC3aPNpJHD-iw0xq4K0cDjEMGG4q/view?usp=sharing Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization] for reference only, raised by Hesham
+
:- [https://drive.google.com/file/d/1OSdZfRiGYKSntjhorKdPtoP1ewQ_yKVW/view?usp=sharing SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks]  
:- [https://drive.google.com/file/d/1OSdZfRiGYKSntjhorKdPtoP1ewQ_yKVW/view?usp=sharing SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks] for reference only, raised by Hesham
+
:- [https://www.opencompute.org/blog/open-compute-project-foundation-issues-new-guidelines-for-inclusiveness New Guidelines for Inclusiveness]
:- [https://www.opencompute.org/blog/open-compute-project-foundation-issues-new-guidelines-for-inclusiveness New Guidelines for Inclusiveness] for reference only, raised by Michael
 

Latest revision as of 11:50, 20 May 2022

Screenshot 2020-07-01 16.35.12.png

Welcome

Welcome to the OCP Time Appliances Project wiki.
This Project is open to the public and we welcome all those who would like to be involved.
Time is a key element to get the highest efficiency in a distributed system. The performance of a distributed system depends on the synchronization of its elements. Several industries such as telecom, mobile, power, industrial, professional audio and video and many more have embraced the need for highly accurate and more importantly reliable distribution and synchronization of time and frequency across packet networks. Although the use case scenario for each of the industries is different, they all share one common thing and that is, time synchronization. Since there is a diverse need for time synchronization across different industries, driven from different use cases and applications, managing the needs of this industry chain becomes a challenge.

Time Appliances Project (TAP) aims to provide a platform to bring together, discuss, standardize and share technologies and solutions across industries with the datacenter applications and datacenter network infrastructure as the main interest. The project aims to bring together the community of datacenter operators, application developers, and equipment and semiconductor companies together to enable datacenter time-sensitive applications such as consistency in distributed systems, edge computing, AR/VR and IoT. These applications will greatly benefit from high accuracy, reliable, and scalable distribution and synchronization of time.

IEEE 1588 Precision Timing Protocol (PTP) and other synchronization methods have been adopted by various industries to maximize the efficiency of various distributed system use cases. Each use case scenario comes with a set of requirements and configurations. These configurations are collected as a ‘PTP profile’. Time appliances project aims to support the development of a PTP profile for datacenter applications and datacenter network infrastructure. The profile will cover time-sensitive applications over OCP-compliant and PTP-aware networking infrastructure such as network switches, network clocks, network interface cards, timing modules & connectors, etc. Additionally, the profile will address various requirements for high accuracy and reliable distribution and synchronization of time, such as expected performance, networking, software API, data models, deployment and telemetry. The project also aims at openness and interoperability through the use of open-source PTP software implementations for timing appliances.

Datacenter applications are the primary target of time appliances project. In addition, the project extends to related topics on time synchronization in academia, research and other industries. The time appliances project brings together the community and will be highly collaborative through technical meetings and collaboration with other OCP Projects including the Networking, Storage, Server, and Telco Projects.

Disclaimer: Please do not submit any confidential information to the Project Community. All presentation materials, proposals, meeting minutes and/or supporting documents are published by OCP and are open to the public in accordance to OCP's Bylaws and IP Policy. This can be found on the OCP OCP Policies page. If you have any questions please contact OCP.

Mission Statement

1. Create specifications and references for Data Center Timing appliances, applications and networking infrastructure
2. Promote openness in Timing Appliances and interfaces through open-source implementations

Project Leadership

- Lead: Ahmad Byagowi, Ph.D. (OCP TAP / META)
- Incubation Committee: Elad Wind (OCP / NVIDIA)

Workstreams

Project Objective Lead Mailing List Status
#1 Open Time Server Development of an open time server for DC and Edge systems Oleg Obleukhov &
Dotan Levi
Submitted
#2 Data Center PTP Profile Development of a PTP Profile tailored for data center applications Michel Ouellette Submitted
#3 Precision Time APIs Time APIs to disseminate the time error (error bound) and bring accurate time to the user space Georgi Chalakov OCP-TAP-APIs Work in progress
#4 Oscillators Classification and measuring of oscillators Gary Giust Submitted
#5 PTP Servos Design and Implement Advanced PTP Servos Alon Regev Getting Started
#6 Instrumentation and Measurement Open source instrumentation and measurement/testing tools for PTP Anand Ram &
Julian St. James
Work in progress
#7 Time Sync Reliability Fault-tolerance and UTC-traceability Gautam Kumar &
Yuliang Li
Getting Started

Get Involved

- TAP Mailing List
- OCP Projects Calendar

Documents

- Charter
- TAP GitHub
- TAP LinkedIn
- TAP Facebook
- Google Drive Document Repository


Worstream Name Format Version Date
#1 Open Time Server Reference Architecture v1 July 28, 2021
Time Card Spec and design package v1 July 28, 2021
TAP Software Software July 28, 2021
#2 Data Center PTP Profile Spec v1 August 31, 2021

Regular Project Calls

- Wednesdays at 11am PST, starting on July 15th, 2020. Repeats every 2 weeks following that

Join the meeting from your computer, tablet or smartphone:

https://global.gotomeeting.com/join/565185493                       

Dial in:

United States (Toll Free): +1 877 309 2073                                        
United States:             +1 571 317-3129                                        
Access Code:                565-185-493

Upcoming Calls

Date Topics Speakers
#53 August-10, 2022 Graham: Synchronizing Clocks by Leveraging Local Clock Properties Ali Najafi
#52 July-27, 2022 T.B.D. Manoj Sastry
#51 July-13, 2022 Next Generation PTP Aware Switches Barak Gafni
#50 June-29, 2022 Signal Intergirity Considerations for High Speed Clocking Srinivas Venkatraman
#49 June-15, 2022 T.B.D. Dhiman Chowdhury
#48 June-1, 2022 Advanced TimeCard and SyncModule for datacenter synchronization Nir Laufer

Recordings from Past Calls

Date Topics Speakers Slides


#47 May-18, 2022 GNSS Power over Fiber System Larry Conway Slides
#46 May-4, 2022 Optical Timekeeping Efforts at NIST Jeff Sherman, Ph.D. Slides
#45 Apr-20, 2022 Precision Time Applications Dan Biederman Slides
#44 Apr-06, 2022 Digitized Clocking Technology, Achieving Time Sync Inside and Across a Distributed a Systems Petre Minciunescu, Ph.D. Slides
#43 Mar-23, 2022 Opening the FPGA code of the Time Card Sven Meier & Thomas Schaub Slides
#42 Mar-09, 2022 Measuring and Monitoring Options for Time Sync Infrastructures Heiko Gerstung Slides
#41 Feb-23, 2022 A Continuous UTC; May We Get Rid of Leap Seconds? Patrizia Tavella, Ph.D. Slides
#40 Feb-9, 2022 Getting Precision Time Synchronization to End Users Julian St. James Slides
#39 Jan-26, 2022 Using LEO Satellites for Time Synchronization Tyler Reid, Ph.D. Slides
#38 Jan-12, 2022 Antenna Challenges for GNSS Receivers Daniel Suster Slides
#37 Dec-15, 2021 PCIe PTM: Timing in the Last Inch Christopher Hall Slides
#36 Dec-1, 2021 Application of Physical Layer Synchronization/Syntonization in a Data Center Environment Med Belhadj, Ph.D. Slides
#35 Nov-17, 2021 Oscillator Workstream Update Gary Guist, Ph.D. Slides
#34 Nov-3, 2021 Time Service for the Virtual Entity Dotan Levi
#33 Oct-20, 2021 Squared: A P2P Overlay Network for Setting up a Scalable PTP clock Synchronization Mesh Lasse Johnsen Slides
#32 Oct-6, 2021 Validating PTP follower clock accuracy Alon Regev Slides
#31 Sep-22, 2021 Transparent Clock and its Applications Amit Oren Slides
#30 Sep-8, 2021 Miniaturized Rubidium Oscillator With The Lowest SWAP Based on Double Resonance Christian S. Ph.D., Stavros M. Ph.D., Jean-Arnold C Slides
#29 Aug-25, 2021 Fearless Global Transactions using Clock Synchronization in CockroachDB Nathan VanBenschoten Slides
#28 Aug-11, 2021 White Rabbit High Accuracy Timing Francisco Girela Lopez, Ph.D. Slides
#27 Jul-28, 2021 Sundial: Fault-tolerant Clock Synchronization for Datacenters Gautam Kumar & Yuliang Li, Ph.D. Slides
#26 Jul-14, 2021 Holdover Challenges in NIC Based Boundary Clocks Eyal Cohen Slides
#25 Jun-30, 2021 GNSS Anti-Jamming and Spoof Mitigation Benoit Krummenacker Slides
#24 Jun-16, 2021 Introduction to IEEE1588-2019 Doug Arnold, Ph.D. Slides
#23 Jun-2, 2021 Introduction to MAC and CSACs Robert Lutwak, Ph.D. Slides
#22 May-19, 2021 Open Synchronization implementations on Linux/k8s Clusters Timo Jokiaho & Pasi Vaananen Slides
#21 May-5, 2021 White Rabbit: An Accurate Time and Frequency Transfer over Ethernet Maciej Lipinski, Ph.D. Slides
#20 Apr-21, 2021 Time Scale Ensembles in Uncertain Environments Marc A. Weiss, Ph.D. Slides
#19 Apr-7, 2021 Clock and Oscillator Statistics and Characterization Techniques Slides
#18 Mar-24, 2021 Introduction to Project Corundum for Time services Alex Forencich, Ph.D. Slides
#17 Mar-10, 2021 Oscillators Classification, Workstream #4 goals and kickoff Gary Giust, Ph.D. Slides
#16 Feb-24, 2021 GNSS Timing Samuli Pietila
#15 Feb-10, 2021 Centralized GNSS Monitoring and Assurance Nir Laufer Slides
#14 Jan-27, 2021 Huygens and its Applications Balaji Prabhakar, Ph.D.
#13 Jan-13, 2021 TAP 2020 Recap, 2021 Plans Ahmad Byagowi, Ph.D. Slides
#12 Dec-16, 2020 Chip Scaled Atomic Clocks John Kitching, Ph.D. Slides
#11 Dec-2, 2020 Data Center PTP Profile, Workstream #2 proposal Michel Ouellette
#10 Nov-18, 2020 Computer Timekeeping and Synchronization Kevin Stanton, Ph.D. Slides
#09 Nov-4, 2020 Time Sync in TSNs (History of TSN, IEEE 802.1AS Overview) Hesham ElBakoury Slides
#08 Oct-21, 2020 Starter's guide to ptp4l Maciej Machnikowski Slides
#07 Oct-7, 2020 Timing card implementation Ahmad Byagowi, Ph.D.
#06 Sep-23, 2020 Practical Use Cases of Synchronized Clocks Georgi Chalakov
#05 Sep-9, 2020 Data Center PTP Profile, Workstream #2 goals and draft spec Michel Ouellette
#04 Aug-26, 2020 Open Grandmaster (Open Time Server), Workstream #1 goals and draft spec Oleg Obleukhov
#03 Aug-12, 2020 TAP Vision as well as the impact of precision oscillator noise on PTP time error Dotan Levi
#02 Jul-29, 2020 Detailed Project Proposal and Discussion Michel Ouellette
#01 Jul-15, 2020 Proposal to launch OCP-TAP Incubation Project Ahmad Byagowi, Ph.D. Slides

Presentations & Videos

- TAP Vision | Slides
- TAP Presentation | Slides
- 2021 OCP Global Summit | TAP Track
- GTC 2021: Time Synchronization in Distributed Data Centers | Video | Slides
- 2020 OCP Tech Week | TAP Track
- Impact of Oscillator Noise on PTP Time Error by SiTime | Slides Part 1 | Slides Part 2

IC Presentations

- September 2nd 2021 IC Presentation (Contribution of TAP DC Profile)
- August 5th, 2021 IC Presentation (Contribution of TAP Time Card and Open Time Server)

TAP Media References

- "Why is this PCIe Card RADIOACTIVE?" video from Linus Tech Tips Youtube Channel highlighting the TAP Time Card
- "The most accurate Raspberry Pi clock IN THE WORLD! Can it do PTP?" video from Jeff Geerling Youtube Channel highlighting the TAP Time Card
- "Put An Atomic Clock in Your PC - Open Source Time Card" video from Gary Explains Youtube Channel explains the TAP Time Card
- "Facebook shares its Time Card atomic clock tech to speed internet services" article from C|Net
- "Supercharges Precision Timing for Facebook’s Next-Generation Time Keeping" developer blog from NVIDIA

References & External Links

- Spanner, TrueTime & The CAP Theorem by Eric Brewer, Google
- Sundial: Fault-tolerant Clock Synchronization for Datacenters by Google Inc. and Harvard University
- Practical Uses of Synchronized Clocks in Distributed Systems by Barbara Liskov
- Stanford Paper
- On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks
- Accurate Network Clock Synchronization at Scale
- Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization
- SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks
- New Guidelines for Inclusiveness