We would like to begin by acknowledging our spouses, Joanna, Rinku, Krista, and Renu to whom this book is dedicated. Without their sacrifices this project would not have been seen completion. We also thank our parents, and family members, Akash, Avi, Chethan, Eleni, Larry, Mary-Jo, Naina, Petros, Samir, Subhasish, Varun, Vibhav, and Vipasha for their affectionate support and encouragement throughout this project.

Our respective institutions, Computer Sciences and Computing Research Institute (CRI) at Purdue University, Department of Computer Science & Engineering, the Army High Performance Computing Research Center (AHPCRC), and the Digital Technology Center (DTC) at the University of Minnesota, and the IBM T. J. Watson Research Center at Yorktown Heights, provided computing resources and active and nurturing environments for the completion of this project.

This project evolved from our first book. We would therefore like to acknowledge all of the people who helped us with both editions. Many people contributed to this project in different ways. We would like to thank Ahmed Sameh for his constant encouragement and support, and Dan Challou, Michael Heath, Dinesh Mehta, Tom Nurkkala, Paul Saylor, and Shang-Hua Teng for the valuable input they provided to the various versions of the book. We thank the students of the introduction to parallel computing classes at the University of Minnesota and Purdue university for identifying and working through the errors in the early drafts of the book. In particular, we acknowledge the patience and help of Jim Diehl and Rasit Eskicioglu, who worked through several early drafts of the manuscript to identify numerous errors. Ramesh Agarwal, David Bailey, Rupak Biswas, Jim Bottum, Thomas Downar, Rudolf Eigenmann, Sonia Fahmy, Greg Frederickson, John Gunnels, Fred Gustavson, Susanne Hambrusch, Bruce Hendrickson, Christoph Hoffmann, Kai Hwang, Ioannis Ioannidis, Chandrika Kamath, David Keyes, Mehmet Koyuturk, Piyush Mehrotra, Zhiyuan Li, Jens Palsberg, Voicu Popescu, Alex Pothen, Viktor Prasanna, Sanjay Ranka, Naren Ramakrishnan, Elisha Sacks, Vineet Singh, Sartaj Sahni, Vivek Sarin, Wojciech Szpankowski, Srikanth Thirumalai, Jan Vitek, and David Yau have been great technical resources. It was a pleasure working with the cooperative and helpful staff at Pearson Education. In particular, we would like to thank Keith Mansfield and Mary Lince for their professional handling of the project.

The Army Research Laboratory, ARO, DOE, NASA, and NSF provided parallel computing research support for Ananth Grama, George Karypis, and Vipin Kumar. In particular, Kamal Abdali, Michael Coyle, Jagdish Chandra, Frederica Darema, Stephen Davis, Wm Randolph Franklin, Richard Hirsch, Charles Koelbel, Raju Namburu, N. Radhakrishnan, John Van Rosendale, Subhash Saini, and Xiaodong Zhang have been supportive of our research programs in the area of parallel computing. Andrew Conn, Brenda Dietrich, John Forrest, David Jensen, and Bill Pulleyblank at IBM supported the work of Anshul Gupta over the years.