We thank the entire MPICH user community for their patience, feedback, and support of this project. Furthermore, we thank Gail Pieper for her help with proofreading and suggesting improvements to the presentation of the material.
We thank Ralph Butler (University of North Florida) for his help in adapting parts of p4 to support MPICH.
We acknowledge several students who contributed to this work: Thomas McMahon and Ron Brightwell (Mississippi State), Patrick Bridges (University of Arizona), and Ed Karrels (University of Wisconsin).