Effective Parallel Optimizations with the Intel® Fortran Compiler

Overview

The SIMD and multi-core features of modern processors enable large improvements in application performance―but only if the application is effectively optimized for parallel execution. The Intel® Fortran Compiler provides multiple ways to achieve this, from automatic vectorization to explicit SIMD programming and from assisted auto-parallelism to threading with OpenMP*. We’ll discuss the pros and cons of the different approaches, providing with advice and examples interpreted using the compiler’s optimization reports.

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Product and Performance Information

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Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserverd for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804