@inproceedings{hoefler-collgm,
  author={Torsten Hoefler and M. Mosch and Torsten Mehlan and Wolfgang Rehm},
  title={{CollGM - A Myrinet/GM optimized collective component for Open MPI}},
  year={2007},
  month={Dec.},
  booktitle={Proceedings of 3rd KiCC Workshop 2007},
  location={Aachen, Germany},
  publisher={RWTH Aachen},
}