Introduction
OpenMP provides a powerful, portable, and simple means of threading applications. In some cases, however, developers should choose the flexibility of native threading APIs. The guidelines in this article help to identify whether OpenMP is an appropriate choice for a given situation.
By Andrew Binstock
Other articles on this Web site extol the virtues of programming with OpenMP, a vendor-neutral interface for threading portions of programs in a simple, portable fashion. It consists of a set of pragmas, APIs, and environment variables, and it is supported by compilers on a wide range of platforms. OpenMP's greatest attributes are this portability and the simplicity it brings to parallel programming.
If you're interested in this topic, these articles may be helpful:
 | Multi-Threading for Experts: Inside a Parallel Application by Sergey N. Zheltov, project manager, and Stanislav V. Bratanov, soft... |
| Preparing for Hyper-Threading and Dual Core Technologies Subscribe to Intel Software Dispatch and see the complete article I... |
| Threading Models for High-Performance Computing: Pthreads or OpenMP? What is OpenMP? In 1997, a group of vendors came together under the... |
| Threading Games for High Performance on Intel® Processors The evolution of the multi-threaded processor design is the trend for ... |
| Performance Obstacles for Threading: How do they affect OpenMP code? Why thread, and what does that have to do with performance? You might... |
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