Chapter 1. Understanding the IBM Power Systems 775 Cluster 95
Parallel ESSL provides subroutines in the following computational areas:
Level 2 Parallel Basic Linear Algebra Subprograms (PBLAS)
Level 3 PBLAS
Linear Algebraic Equations
Eigensystem Analysis and Singular Value Analysis
Fourier Transforms
Random Number Generation
For communication, Parallel ESSL includes the Basic Linear Algebra Communications
Subprograms (BLACS), which use MPI. For computations, Parallel ESSL uses the ESSL
subroutines (ESSL is a pre-requisite).
The Parallel ESSL subroutines are called from 32-bit and 64-bit application programs that are
written in Fortran, C, and C++ that run the AIX and Linux operating systems.
The Parallel ESSL SMP Libraries are provided ...