One-Sided Primitives
OSPRI is a new one-sided runtime communication system for leadership-class supercomputers. It aims to provide more flexible semantics compared to existing one-sided communication systems (e.g. ARMCI) and target modern architectural trends by providing a thread-safe implementation.
The proper citation of OSPRI is:
OSPRI: J. R. Hammond, J. Dinan, P. Balaji, I. Kabadshow, S. Potluri, and V. Tipparaju, ''The 6th Conference on Partitioned Global Address Space Programming Models'' (PGAS). Santa Barbara, CA, October 2012. "OSPRI: An Optimized One-Sided Communication Runtime for Leadership-Class Machines."
The corresponding Bibtex is:
@inproceedings{Hammond:PGAS:2012:OSPRI,
author = {Jeff R. Hammond and James Dinan and Pavan Balaji and Ivo Kabadshow and Sreeram Potluri and Vinod Tipparaju},
title = {{OSPRI}: An Optimized One-Sided Communication Runtime for Leadership-Class Machines},
booktitle = {The 6th Conference on Partitioned Global Address Space Programming Models ({PGAS})},
month = oct,
year = {2012},
location = {Santa Barbara, CA, USA},
url = {http://www.mcs.anl.gov/publication/ospri-optimized-one-sided-communication-runtime-leadership-class-machines},
}
Please see the preprint for details.
- maximum communication performance
- scalability to millions of processes
- thread-safety
- support for hybrid systems (e.g. GPUs)
- modular design ala MPI
- software quality (readable, documented source code and robust build system)
- productive interaction with vendors
Jeff Hammond, Sayan Ghosh, Sreeram Potluri, and Pavan Balaji have all contributed to this project.