The papers presented at the workshop are now available as a book published by Springer Verlag: Beyond Loop Level Parallelism in OpenMP: Accelerators, Tasking and More

The OpenMP Tutorial is also available in PDF:

• Welcome (pdf)
• Basic Concepts in Parallelization (pdf)
• An Overview of OpenMP (pdf)
• Getting OpenMP Up To Speed (pdf)

OpenMP: A Portable Solution for Threading
By Shameem Akhter and Jason Roberts

However, while still useful, it is a bit dated. It seems to be adapted from Chapter 6 of the authors’ book Multi-Core Programming, and is limited to version 2.5 of the OpenMP specifications.

Many of the presentations are now available in PDF from the IWOMP website:

These source examples are available as a free download »here (a zip file) under the BSD license. Each source comes with a copy of the license. Please do not remove this.

You are encouraged to try out these examples and perhaps use them as a starting point to better understand and perhaps further explore OpenMP.

Each source file constitutes a full working program. Other than a compiler and run time environment to support OpenMP, nothing else is needed.

With the exception of one example, there are no source code comments.

Not only are these examples very straightforward, they are also discussed in the book.

To make things easier, each source directory has a make file called “Makefile”. This file can be used to build and run the examples in the specific directory. Before you do so, you need to activate the appropriate include line in file Makefile. There are include files for several compilers and Unix based Operating Systems (Linux, Solaris and Mac OS to precise).

These files have been put together on a best effort basis. The User’s Guide that is bundled with the examples explains this in more detail.

Also, we have created a new forum, »Using OpenMP - The Book and Examples, for discussion and feedback.

»OpenMP 3.0 Fortran API Summary Card (revised March 2009) (PDF)

Also:     »Version 3.0 Summary Card C/C++ (November, 2008) (PDF)

Unfortunately, the September 5, 2008 blog titled “The OpenMP Concurrency Platform“ written by Charles Leiserson from Cilk Arts repeats some of the persistent myths regarding OpenMP.

Certain comments made also may give rise to a somewhat distorted view on OpenMP for those readers that are less into the aspects of parallel programming. For example, the statement that OpenMP is most suitable for loops only. This has never been the case and certainly the introduction of the flexible and powerful tasking concept in OpenMP 3.0 (released May 2008) is a big step forward.

Read »Ruud’s blog entry

OpenMP has been very successful in exploiting structured parallelism in applications. With increasing application complexity, there is a growing need for addressing irregular parallelism in the presence of complicated control structures. This is evident in various efforts by the industry and research communities to provide a solution to this challenging problem. One of the primary goals of OpenMP 3.0 is to define a standard dialect to express and efficiently exploit unstructured parallelism. This paper presents the design of the OpenMP tasking model by members of the OpenMP 3.0 tasking sub-committee which was formed for this purpose. The paper summarizes the efforts of the sub-committee (spanning over two years) in designing, evaluating and seamlessly integrating the tasking model into the OpenMP specification. In this paper, we present the design goals and key features of the tasking model, including a rich set of examples and an in-depth discussion of the rationale behind various design choices. We compare a prototype implementation of the tasking model with existing models, and evaluate it on a wide range of applications. The comparison shows that the OpenMP tasking model provides expressiveness, flexibility, and huge potential for performance and scalability.

The article is currently available from the »IEEE website in PDF.

The slides are now available: »An Overview of OpenMP - Ruud van der Pas - Sun Microsystems

Here is the video of the talk:

The slides and class exercises from that tutorial are now available:

• Hands-On Introduction to OpenMP, Mattson and Meadows, from SC08 (Austin) (PDF)
  • Code Exercises (zip)