Parallel Engineering and Scientific Subroutine Library for AIX Version 2 Release 3: Guide and Reference

How to Use This Book

Front Matter consists of the Table of Contents, a subroutine lookup table, special terms and abbreviated names, and other prefatory information. Use these to find or interpret information in the book.

Part 1. "Guide Information" provides guidance information for using Parallel ESSL.

• Chapter 1, "Overview, Requirements, and List of Subroutines" gives an overview of Parallel ESSL and lists required hardware and software products. Read this chapter first to determine the aspects of Parallel ESSL you want to use.
• Chapter 2, "Distributing Your Data" describes how to distribute your data across processes for various types of data structures: vectors, matrices, and sequences. Use this information when designing and coding your program.
• Chapter 3, "Coding and Running Your Program" explains coding requirements for calling Parallel ESSL from Fortran, C, and C++ programs, performance coding tips, and how to run your program in the Parallel Environment. Use this information when coding or running your program.
• Chapter 4, "Migrating Your Program" describes how to migrate your program to Parallel ESSL. Use this information when updating your program for a new release of Parallel ESSL or when moving from ScaLAPACK to Parallel ESSL.
• Chapter 5, "Using Error Handling" describes how to use error handling in Parallel ESSL to retrieve information about errors that occur in your program and diagnose problems. Use this information when designing and coding your program as well as diagnosing your problems.

Part 2. "Reference Information" provides reference information you need to code calling sequences for the Parallel ESSL subroutines. Each chapter contains an introduction and subroutine descriptions. To understand the information in the subroutine descriptions, see Interpreting the Subroutine Descriptions. Use the appropriate chapter when coding your program:

• Chapter 6, "Level 2 PBLAS"
• Chapter 7, "Level 3 PBLAS"
• Chapter 8, "Linear Algebraic Equations"
• Chapter 9, "Eigensystem Analysis and Singular Value Analysis"
• Chapter 10, "Fourier Transforms"
• Chapter 11, "Random Number Generation"
• Chapter 12, "Utilities"

Appendix A. Basic Linear Algebra Communication Subprograms (BLACS) Quick Reference Guide provides a list of calling sequences for the BLACS subroutines.

Appendix B. Sample Programs contains a sample Fortran 90 application program using Parallel ESSL. It also contains sample application programs using the Fortran 90 and Fortran 77 sparse linear algebraic equation subroutines.

Glossary contains definitions of terms used in this book.

Bibliography provides information about publications related to Parallel ESSL. Use it to identify and order publications with supporting information.