Meeting - 10th January 2018
Protocol of the GASPI Forum meeting on January, 10th, 2018, Frankfurt/Main
Date: 2018.01.10
Location: Frankfurt/Main, Wilhelm-Fay Straße 54
Start: 11:00h
End: 16:00h
Participants:
- Fraunhofer ITWM (Mirko Rahn, Daniel Grünewald, Martin Kühn)
- ZIH, TU Dresden (Christian Herold)
- DLR (Tom Gerhold, Olaf Krzikalla)
- LRZ (Christoph Bernauer)
- Tartu University, Estonia (Benson Muite)
- T-Systems SfR (Christian Simmendinger)
Agenda:
Daniel: GaspiCXX
C++ interface to Gaspi / GPI-2
- Idea: Improve usability, retain performance
- Generic (fully dynamic) resource management
- Segment memory management
- Segment notification management
- RAII: Segment, Queue, Group
- Abstraction of communication
- Setup phase: may be „expensive“
- „Production“ phase: full performance
Christian: Shared Memory Segments for GASPI
- Idea: Support for Migration from legacy MPI-only applications
- Replace node-internal communication with shared memory data dependencies
- Replace intra-node MPI communication with GASPI notified communication
- Aggregate intra-node communication
Errata Proposals
General Text Proposals
Discussion
- Use of GASPI for halo exchange library, such as detailed in https://arxiv.org/abs/1207.1746
- Use of GASPI in DASH project http://www.dash-project.org/team.html
Tutorials / Hackathon
- Benson Muite: Still investigating workshop/hackathon
Next meeting:
- June, 27 2017 in Frankfurt
Written on January 10, 2018