Copyright Notice:

The documents distributed by this server have been provided by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a noncommercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Publications of SPCL

T. Hoefler, T. Mehlan, F. Mietke, W. Rehm:

 LogfP - A Model for small Messages in InfiniBand

(In Proceedings of the 20th IEEE International Parallel & Distributed Processing Symposium (IPDPS), PMEO-PDS'06 Workshop, presented in Rhodes, Greece, pages , ISBN: 1-4244-0054-6, Apr. 2006)


Accurate models of parallel computation are often crucial to optimize parallel algorithms for their running time. In general the easier the model's use and the smaller the number of parameters and interdependencies among them, the more inaccuarcies are introduced by simplification. On the other hand a too complex model is unusable. We show that it is possible to derive a relatively accurate and easy model for small message performance over the InfiniBand network. This model allows the developer to gain knowledge about the inherent parallelism of a specific InfiniBand hardware and encourages him to use this parallelism efficiently. Several well known models hide this feature and some of them even penalize the use of parallelism because the model designers were not aware of new emerging architectures like InfiniBand.


download article:
download slides:


  author={Torsten Hoefler and Torsten Mehlan and Frank Mietke and Wolfgang Rehm},
  title={{LogfP - A Model for small Messages in InfiniBand}},
  booktitle={Proceedings of the 20th IEEE International Parallel \& Distributed Processing Symposium (IPDPS), PMEO-PDS'06 Workshop},
  location={Rhodes, Greece},