This presentation gives overview about the A2I and A2O cores which IBM open sourced in 2020 . . A2I /A2O cores would excel on the edge, collecting and processing data from IoT devices, work as a log server , Network/Router server , storage server (ceph & co) and probably for a few others (Elasticsearch, etc.).

1. OpenPOWER Open Cores
H. Peter Hofstee
IBM & TU Delft

2. First things first
• If you are interested in this … first thing to do is join OpenPOWER!
• Free for associate/academic members
https://openpowerfoundation.org/

3. Resources OpenPOWER ISA
Brian Thompto: The Open Power ISA: Architecture Compliancy and
Future Foundations
• https://ics2020.bsc.es/sites/default/files/uploaded/brian_thompto_ICS2020_
SLIDES.pdf
ISA
• https://wiki.raptorcs.com/w/images/f/f5/PowerISA_public.v3.1.pdf

4. https://ics2020.bsc.es/sites/default/files/uploaded/brian_thompto_ICS2020_SLIDES.pdf

5. https://ics2020.bsc.es/sites/default/files/uploaded/AntonBlanchard-ISC-2020.pdf

6. Microwatt Resources
• https://github.com/antonblanchard/microwatt
• Microwatt core (VHDL)
• Talks
• https://openpowerfoundation.org/openpower-summit-north-america-2019-
introducing-the-microwatt-fpga-soft-cpu-core/
• Anton Blanchard, Microwatt and GHDL - An Open Hardware CPU written in VHDL,
synthesized with Open Source tools:
• https://ics2020.bsc.es/sites/default/files/uploaded/AntonBlanchard-ISC-2020.pdf
• https://www.youtube.com/watch?v=-CLXVgwfDd4
• https://www.youtube.com/watch?v=9CKi_FnwlvQ
• https://www.youtube.com/watch?v=qXUh7w_mfR0
• https://www.youtube.com/watch?v=RU6RPYAqFzE

7. https://ics2020.bsc.es/sites/default/files/uploaded/AntonBlanchard-ISC-2020.pd

8. Very small …
https://ics2020.bsc.es/sites/default/files/uploaded/AntonBlanchard-ISC-2020.pdf

9. Contributions
(18 contributors total )

10. Resources A2i and A2o
• https://en.wikipedia.org/wiki/IBM_A2
• Includes some useful references to papers etc.

11. A2i

12. https://static.sched.com/hosted_files/openpowerna2020/3e/Bill%20Flynn.pdf

13. Resources A2i
• https://github.com/openpower-cores/a2i
• a2i (VHDL)
• https://openpowerfoundation.org/a2i-power-processor-core-contributed-to-
openpower-community-to-advance-open-hardware-collaboration/
• A2i introduction:
• https://static.sched.com/hosted_files/openpowerna2020/3e/Bill%20Flynn.pdf
• https://www.youtube.com/watch?v=DshEFxTZd6I
• A2(i) user manual
• https://wiki.alcf.anl.gov/parts/images/c/cf/A2.pdf

14. https://static.sched.com/hosted_files/openpowerna2020/3e/Bill%20Flynn.pdf

15. https://static.sched.com/hosted_files/openpowerna2020/3e/Bill%20Flynn.pdf

16. https://static.sched.com/hosted_files/openpowerna2020/3e/Bill%20Flynn.pdf

17. Contributions

18. Resources A2o
• a2o (verilog)
• https://github.com/openpower-cores/a2o
• IBM Open Sources the A2O core!
• https://static.sched.com/hosted_files/openpowerna2020/39/Bill%20Flynn.pdf
• https://www.youtube.com/watch?v=2IshMgIGCR4