We describe a family of MPI applications we call the Parallel Unix Commands. These commands are natural parallel versions of common Unix user commands such as ls, ps, and find, together with a few similar commands particular to the parallel environment. We describe the design and implementation of these programs and present some performance results on a 256-node Linux cluster. The Parallel Unix Commands are open source and freely available.

Quick Start 2 2 Obtaining and Unpacking the Distribution 3 3 Documentation 5 4 Con guring mpich 5 4.1 Special Notes when Con guring mpich for Networks of Workstations . . . . 15 4.2 Building a production mpich . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.3 Preparing mpich for TotalView debugging . . . . . . . . . . . . . . . . . . . 18 4.4 Fortran . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.4.1 What if there is no Fortran compiler? . . . . . . . . . . . . . . . . . 18 4.4.2 Fortran 90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.4.3 Fortran 77 and Fortran 90 . . . . . . . . . . . . . . . . . . . . . . . . 18 4.4.4 Fortran 90 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.4.5 Con guring with the Absoft Fortran Compiler . . . . . . . . . . . . 19 4.5 Special issues for heterogeneous networks . . . . . . . . . . . . . . . . . . . 20 4.6 Con guring with ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.7 mpich and threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5 Compiling 5.1 C++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Getting tcl, tk, and wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.3 Building multiple devices or architectures . . . . . . . . . . . . . . . . . . . 24 6 Running an MPI Program 24 6.1 Special Considerations for Running on a Network of Workstations . . . . . 25 6.1.1 Dealing with automounters . . . . . . . . . . . . . . . . . . . . . . . 26 6.1.2 Faster job startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6.1.3 Stopping the servers . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.1.4 Managing the servers . . . ....

Installation and User’s Guide to MPICH, a Portable Implementation of MPI Version 1.2.5 The ch p4 device for Workstation Networks by

This work is the result of the guidance, support, and encouragement I have received from my wife, family, advisors and colleagues. I would like to thank Argonne National Laboratory for supporting a majority of my graduate school work and access to their original 128 node IBM SP system that the original EASY scheduler was developed on. As EASY matured and scalability became the focus of my research, the Cornell Theory Center provided a new one-of-a-kind opportunity for me. Their exceptionally well run IBM SP system combined with their excellent working relationship with IBM were the two key factors that made the EASY-LoadLeveler work possible. The freedom to do this research and the time to consider appropriate solutions has been invaluable. I would also like to thank my advisors at the Illinois Institute of Technology especially Dr. Kenevan for helping me formulate this work and the opportunity to do this research under his guidance and Dr. Martha Evens for her patience and encouragement during some difficult times. I would like to thank my parents for instilling in me the importance of “aiming high ” and working hard to achieve my goals. These lessons combined with their love and

Installation and User’s Guide to MPICH, a Portable Implementation of MPI Version 1.2.4 The ch p4 device for Workstation Networks by