@article{Mittal:2012,
 author = {Mittal, Anshul and Jain, Nikhil and George, Thomas and Sabharwal, Yogish and Kumar, Sameer},
 title = {Collective algorithms for sub-communicators},
 journal = {SIGPLAN Not.},
 issue_date = {August 2012},
 volume = {47},
 number = {8},
 month = feb,
 year = {2012},
 issn = {0362-1340},
 pages = {315--316},
 numpages = {2},
 url = {http://doi.acm.org/10.1145/2370036.2145872},
 doi = {10.1145/2370036.2145872},
 acmid = {2145872},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {collectives, sub-communicators, torus},
}