The programming model

The Exemplar compilers implement a subset of the Exemplar programming model, which provides advanced parallelism. This model supports the following programming paradigms:

In the shared-memory paradigm, the compilers perform optimizations and—if requested—parallelization. Directives and pragmas allow you to further increase optimization opportunities.

In the message-passing paradigm, the programmer uses functions to explicitly spawn parallel processes, share data among processes, and coordinate their activities.

The shared-memory/message-passing paradigm allows you to combine the two paradigms, taking advantage of their respective strengths.

This book focuses on the compiler support for the shared-memory paradigm. See the Exemplar Programming Guide for information on programming efficiently using the shared-memory paradigm.

See the HP MPI User's Guide for information on using message passing.