*Conference Director -X Multicore World. Wellington, NZ -Feb2023

*Program Committee

-SuperComputing SC21 BoF. St Louis, MO, USA - Nov21

-PAISE2021 (Parallel AI & Systems for the Edge) -May21

*Speaker "Agriculture powered by SuperComputing" -MobileTECH AG. Rotorua, NZ -March21 (video)

*Project Director - "Whakarongo ki te whenua" (Listen to the Land) -June19

*Speaker - AgriTech and Security. Rotorua, NZ -April19

*NZ's Technology Independence - NBR. July18

*Invited Speaker - Open Research: Rethinking Scientific Collaboration - Perimeter Institute for Theoretical Physics. Waterloo, Canada -March18

*Speaker - 2nd What On Earth colloquium. Wellington, NZ -March18

*Speaker - 5th Computing for SKA. Auckland, NZ -Feb18

*Session Chair - SKA: The Ultimate BigData Project - SC17. Denver, USA

* Keynote - 10th LatinAmerican HPC Conference. Buenos Aires, Argentina. Sept17

*Co-Chair IoT-HPC ISC17. Frankfurt, Germany

*Is your IT project a Black Swan? ITx16. Wellington, NZ

*Towards an Open Software Stack for Exascale Computing. SC15. Austin, USA.

*Speaker, SKA in Seoul, Korea, Nov15