Acknowledgments

Many people contributed to this book over a long period of time, so even though we will try to mention all of them, we may miss someone owing to no other reason than the fallibility of human memory. In what we hope are only rare cases, we want to apologize upfront to any who may have been inadvertently missed.

We would like to thank first and foremost our Intel lead editor Stuart Douglas, whose sharp eye selected our book proposal among so many others, and thus gave birth to this project.

The wonderfully helpful and professional staff at Apress made this publication possible. Our special thanks are due to the lead editor Steve Weiss, coordinating editor Melissa Maldonado, development editor Corbin Collins, copyeditor Carole Berglie, and their colleagues: Nyomi Anderson, Patrick Hauke, Anna Ishchenko, Dhaneesh Kumar, Jeffrey Pepper, and many others.

We would like to thank most heartily Dr. Bronis de Supinski, CTO, Lawrence Computing, LLNL, who graciously agreed to write the foreword for our book, and took his part in the effort of pressing it through the many clearance steps required by our respective employers.

Our deepest gratitude goes to our indomitable reviewers: Heinz Bast, Heinrich Bockhorst, Clay Breshears, Alejandro Duran, and Klaus-Dieter Oertel (all of Intel Corporation). They spent uncounted hours in a sea of electronic ink pondering multiple early chapter drafts and helping us stay on track.

Many examples in the book were discussed with leading HPC application experts and users. We especially are grateful to Dr. Georg Hager (Regional Computing Center Erlangen), Hinnerk Stüben (University of Hamburg), and Prof. Dr. Gerhard Wellein (University of Erlangen) for their availability and willingness to explain the complexity of their applications and research.

Finally, and by no means lastly, we would like to thank so many colleagues at Intel and elsewhere whose advice and opinions have been helpful to us, both in direct relation to this project and as a general guidance in our professional lives. Here are those whom we can recall, with the names sorted alphabetically in a vain attempt to be fair to all: Alexey Alexandrov, Pavan Balaji, Michael Brinskiy, Michael Chuvelev, Jim Cownie, Jim Dinan, Dmitry Dontsov, Dmitry Durnov, Craig Garland, Rich Graham, Bill Gropp, Evgeny Gvozdev, Thorsten Hoefler, Jay Hoeflinger, Hans-Christian Hoppe, Sergey Krylov, Oleg Loginov, Mark Lubin, Bill Magro, Larry Meadows, Susan Milbrandt, Scott McMillan, Wolfgang Petersen, Dave Poulsen, Sergey Sapronov, Gergana Slavova, Sanjiv Shah, Michael Steyer, Sayantan Sur, Andrew Tananakin, Rajeev Thakur, Joe Throop, Xinmin Tian, Vladmir Truschin, German Voronov, Thomas Willhalm, Dmitry Yulov, and Marina Zaytseva.