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Performance hints for WRF on Intel® architecture

This note explains how to configure the Weather Research & Forecasting (WRF) run-time environment in order to achieve best performance and scalability on Intel® architecture with Intel® software tools.
Authored by Roman Dubtsov (Intel) Last updated on 06/14/2017 - 13:03
Article

OpenMP* and the Intel® IPP Library

How to configure OpenMP in the Intel IPP library to maximize multi-threaded performance of the Intel IPP primitives.
Authored by Last updated on 07/31/2019 - 14:30
Article

Using Tasking in OpenMP* with the Intel® Fortran Compiler

The multi-core performance of a legacy Fortran benchmark unsuited to data parallelism is enhanced by threading using the TASK construct of OpenMP and the Intel Fortran Compiler. The necessary source code changes are explained in detail.
Authored by Martyn Corden (Intel) Last updated on 07/04/2019 - 10:00
Article

Using KMP_AFFINITY to create OpenMP* thread mapping to OS proc IDs

This article explains how to create your own OpenMP* thread mapping to OS proc IDs with Intel® C/C++ and Fortran compiler, by setting environment variable KMP_AFFINITY. It also provides some thread affinity demo results on when use different settings.
Authored by Last updated on 05/25/2018 - 15:30
Article

Don't Use the OpenMP* THREADPRIVATE 'Compatibility' Option when Everything is Compiled by Intel

The Intel C++ and Fortran compilers for Windows* and Linux* provide 'legacy' and 'compatibility' implementations of the OpenMP THREADPRIVATE directive. The 'compatibility' option should not be used when everything is compiled by Intel compilers.
Authored by Kenneth Craft (Intel) Last updated on 07/08/2019 - 15:12
Article

Intel® C++ and Fortran Compilers now support the OpenMP* 3.1 Specification

The newest releases of the Intel® C++ and Fortran Compilers support new features in the OpenMP* 3.1 Specification
Authored by Kenneth Craft (Intel) Last updated on 05/25/2018 - 15:48
Article

Bogus OpenMP KMP_AFFINITY warnings on non-Intel processor hosts

An application compiled with -Qopenmp (Windows*)/-openmp (Linux*) and run on a host not containing a genuine Intel® processor may generate bogus OMP: Warning #71 and Warning #72.
Authored by Kenneth Craft (Intel) Last updated on 05/25/2018 - 15:48
Article

Multithreaded debugging issues on Pardus Linux

Due to an issue with the default libthread library on Pardus Linux* version 2011.2, 64-bit, the debugger cannot detect which threading library is being used by the debuggee.

Authored by Hubert H. (Intel) Last updated on 12/31/2018 - 14:00
Article

OpenMP loop does not parallelize with continue statement in the catch block

The compiler does not parallelize OpenMP loops that contain a "continue" statement in a C++ catch block inside the parallel region.
Authored by Last updated on 05/25/2018 - 15:30
Blog post

OpenMP* 4.0 may offer important solutions for targeting and vectorization

The upcoming OpenMP 4.0 will be discussed at SC12, and there wil

Authored by James R. (Blackbelt) Last updated on 05/28/2018 - 18:28