OpenMP News


»Accelerated Programming

Michael Wolfe, at PGI, writes about programming standards for the next generation of  HPC systems.

Having just returned from SC13, one burning issue is the choice of a standard approach for programming the next generation HPC systems. While not guaranteed, these systems are likely to be large clusters of nodes with multicore CPUs and some sort of attached accelerators. A standard programming approach is necessary to convince developers, and particularly ISVs, to start adoption now in preparation for this coming generation of systems. John Barr raised the same question in a recent article at Scientific Computing World from a more philosophical point of view. Here I address this question from a deeper technical perspective.

Read the complete article at »HPCWire.

»SC13 Video Talks Online

SC13

Videos of the five in-booth talks and the Birds of a Feather session at Supercomputing 2013 (November 2013, Denver CO) are now »online.

»4.0 Examples Document Released

The first release of the OpenMP 4.0 API Examples document is now available and can be downloaded from the Specifications page.  This is a work in progress — additional examples are under development and will be released in later editions.

Also, a discussion forum for the 4.0 Examples document is now open.

»OpenMP ARB at SC’13

OpenMP at SC13

»Recently Published Articles on OpenMP

Admin Magazine/HPC
http://www.admin-magazine.com/HPC/Articles/HPC-Software-Road-Gets-a-Bit-Smoother

The Clang/LLVM compiler now supports OpenMP 3.1
http://clang-omp.github.io/

Linux Journal / Advanced OpenMP
http://ow.ly/2z2A8p

In Online Journal Embedded
A portable OpenMP runtime library based on MCA APIs for embedded systems – Part 3
http://ow.ly/2yUR1s

ACM Digital Library
Portable mapping of OpenMP to Multicore embedded systems using MCA APIs
http://dl.acm.org/citation.cfm?id=2465569&bnc=1

»University of Houston Joins the OpenMP Effort

The University of Houston (UH) has joined the OpenMP Consortium, a group of leading hardware and software vendors and research organizations creating the standard for the most popular shared-memory parallel programming model in use today.

“We are excited to join the OpenMP family as an academic member”, says Barbara Chapman, Professor of Computer Science and director of the Center for Advanced Computing and Data Systems (CACDS) at UH. “Through cOMPunity, we have been involved since the beginning. With this new membership, we will continue to engage with the OpenMP community.”

“This is a great step forward for the UH HPCTools research group. We look forward to continuing our efforts to support standardization of OpenMP, to providing reference implementations through the OpenUH compiler and proposing new features”, says Yonghong Yan, Research Assistant Professor at UH.

The University of Houston is located in the Houston metropolitan area, world headquarters for the energy industry and home to the Texas Medical Center. UH HPCTools Research group, led by Chapman and Yan, performs research on parallel programming models, compiler technologies, and HPC applications and systems. CACDS provides HPC resources at UH.

“I wish to warmly welcome UH to OpenMP, although they are no stranger, with a rich and deep history of working with and contributing to OpenMP as well as research regarding OpenMP” says Michael Wong, OpenMP CEO.

The OpenMP ARB now has 14 permanent members and 12 auxiliary members. Permanent members are vendors with a long-term interest in creating products for OpenMP, while auxiliary members have an interest in OpenMP and do not create or sell products.

»9th OpenMP Workshop Sept 16-18 in Australia

IWOMP 2013 Canberra

9th International Workshop on OpenMP — September 16-18, 2013
Canberra, AUSTRALIA

The »International Workshop on OpenMP (IWOMP) is an annual workshop dedicated to the promotion and advancement of all aspects of parallel programming with OpenMP. It is the premier forum to present and discuss issues, trends, recent research ideas and results related to parallel programming with OpenMP. The international workshop affords an opportunity for OpenMP users as well as developers to come together for discussions and sharing new ideas and information on this topic.

IWOMP 2013 will be a three-day event. The first day will consist of tutorials focusing on topics of interest to current and prospective OpenMP developers, suitable for both beginners as well as those interested in learning of recent developments in the evolving OpenMP standard. The second and third days will consist of technical papers and panel sessions during which research ideas and results will be presented and discussed.

Go to »iwomp.org for more information.

»OpenMP 3.1 Support in Clang Announced

The Clang community has announced the availability of a full OpenMP 3.1 support implementation in the Clang compiler:

“This project implements OpenMP support in the Clang C language family front-end for the LLVM compiler. The current scope of the project is to support the OpenMP 3.1 specification.”

The project is hosted here: http://clang-omp.github.com/

It is based on clang 3.3 (and will be updated as new clang/llvm releases become available); also, we plan to eventually contribute everything to the clang trunk (initial patches have already been committed). This implementation supports 3.1 version of OpenMP standard in full; it passes all OpenMP tests we tried with it so far (this includes OpenMP Validation Suite from OpenUH Research Compiler, SPEC OMP2012 and internal Intel test suites). Performance-wise, it demonstrates similar gains and scalability as other compilers with OpenMP support.

The OpenMP API supports multi-platform shared-memory parallel programming in C/C++ and Fortran. The OpenMP API defines a portable, scalable model with a simple and flexible interface for developing parallel applications on platforms from the desktop to the supercomputer.
»Read about OpenMP.org